url stringlengths 37 208 | title stringlengths 4 148 | author stringclasses 173
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|---|---|---|---|---|---|---|---|---|---|---|---|
https://hackaday.com/2019/02/02/create-an-aurora-of-your-own/ | Create An Aurora Of Your Own | Bryan Cockfield | [
"Art"
] | [
"art",
"caustics",
"glass",
"laser",
"photon",
"speaker",
"water",
"wave"
] | Throughout our day-to-day experiences, we come across or make use of many scientific principles which we might not be aware of, even if we immediately recognize them when they’re described. One such curiosity is that of caustics, which refers not only to corrosive substances, but can also refer to a behavior of light t... | 14 | 8 | [
{
"comment_id": "5836161",
"author": "techokami",
"timestamp": "2019-02-02T13:29:27",
"content": "Aurora Borealis?! At this time of year, at this time of day, in this part of the country, localized entirely within your kitchen?!",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,374,054.72322 | ||
https://hackaday.com/2019/02/02/custom-jig-makes-short-work-of-product-testing/ | Custom Jig Makes Short Work Of Product Testing | Dan Maloney | [
"Arduino Hacks"
] | [
"arduino",
"automated test",
"jig",
"nano",
"serial",
"testing",
"usb"
] | When you build one-off projects for yourself, if it doesn’t work right the first time, it’s a nuisance. You go back to the bench, rework it, and move on with life. The equation changes considerably when you’re building things to sell to someone. Once you take money for your thing, you have to support it, and anything t... | 19 | 6 | [
{
"comment_id": "5835868",
"author": "Sparkygsx",
"timestamp": "2019-02-02T10:26:53",
"content": "You could have plugged a large number of them in series and tested them together.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5836333",
"author": "Ka... | 1,760,374,055.306574 | ||
https://hackaday.com/2019/02/01/this-creepy-skull-shows-time-with-its-eyes/ | This Creepy Skull Shows Time With Its Eyes | Rich Hawkes | [
"Arduino Hacks",
"Art",
"clock hacks"
] | [
"arduino",
"clock",
"ds3232",
"rtc",
"servo",
"skull"
] | Sometimes you have an idea, and despite it not being the “right” time of year you put a creepy skull whose eyes tell the time and whose jaw clacks on the hour into a
nice wooden box for your wife
as a Christmas present. At least, if you’re reddit user [flyingalbatross1], you do!
The eyes are rotated using 360 degree se... | 1 | 1 | [
{
"comment_id": "5836511",
"author": "Better Automations",
"timestamp": "2019-02-02T17:29:54",
"content": "Eye gorehttps://youtu.be/nxxSIX3fmmo",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,374,054.670214 | ||
https://hackaday.com/2019/02/03/unlocking-god-mode-on-x86-processors/ | Unlocking God Mode On X86 Processors | Jonathan Bennett | [
"computer hacks",
"Security Hacks"
] | [
"computer security",
"CPU architecture",
"x86"
] | We missed this Blackhat talk back in August, but it’s so good we’re glad to find out about it now. [Christopher Domas] details his obsession with hidden processor instructions, and how
he discovered an intentional backdoor in certain x86 processors
. These processors have a secondary RISC core, and an undocumented proc... | 39 | 14 | [
{
"comment_id": "5839903",
"author": "Ostracus",
"timestamp": "2019-02-03T21:21:50",
"content": "The thing is will all this insight result in better code for the majority that use these processors? Or like zero-day exploits benefit only a few.",
"parent_id": null,
"depth": 1,
"replies": ... | 1,760,374,055.11989 | ||
https://hackaday.com/2019/02/03/leap-motions-project-north-star-gets-hardware/ | Leap Motion’s Project North Star Gets Hardware | Brian Benchoff | [
"Virtual Reality"
] | [
"ar",
"augmented reality",
"Leap motion",
"project north star",
"virtual reality",
"vr"
] | It’s been more than a year since we first heard about Leap Motion’s new, Open Source augmented reality headset. The first time around, we were surprised: the headset featured dual 1600×1440 LCDs, 120 Hz refresh rate, 100 degree FOV, and the entire thing would cost under $100 (in volume), with everything, from firmware ... | 17 | 4 | [
{
"comment_id": "5839629",
"author": "Gravis",
"timestamp": "2019-02-03T18:27:22",
"content": "100 degree field of view just isn’t enough. What kills me is that they could make a feather-weight curved/flexible displays that could handle 180 degrees and you wouldn’t have to wear some giant contrapti... | 1,760,374,054.873325 | ||
https://hackaday.com/2019/02/03/blacksmith-elevates-the-craft-with-this-fabulous-strongbox/ | Blacksmith Elevates The Craft With This Fabulous Strongbox | Dan Maloney | [
"classic hacks"
] | [
"blacksmith",
"brass",
"iron",
"latch",
"locksmith",
"metalwork",
"security",
"spring",
"steel"
] | For most of human industrial history, the blacksmith was the indispensable artisan. He could fashion almost anything needed, from a simple hand tool to a mechanism as complex as a rifle. Starting with the most basic materials, a hot forge, and a few tools that he invariably made himself, the blacksmith was a marvel of ... | 35 | 14 | [
{
"comment_id": "5839178",
"author": "DainBramage",
"timestamp": "2019-02-03T15:22:41",
"content": "That is a true masterpiece!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "5839200",
"author": "Shannon",
"timestamp": "2019-02-03T15:29:18",
"conte... | 1,760,374,055.242884 | ||
https://hackaday.com/2019/02/03/a-very-different-hot-or-not-application-for-your-phone/ | A Very Different ‘Hot Or Not’ Application For Your Phone | Roger Cheng | [
"Cellphone Hacks",
"Medical Hacks"
] | [
"Dosimeter",
"radiation",
"radiation detector",
"radioactive",
"radioactivity",
"resistors",
"smd",
"surface mount"
] | Radioactivity stirs up a lot of anxiety, partially because ionizing radiation is undetectable by any of the senses we were born with. Anytime radiation makes the news, there is a surge of people worried about their exposure levels and a lack of quick and accurate answers. Doctors are flooded with calls, detection devic... | 27 | 6 | [
{
"comment_id": "5838964",
"author": "Ostracus",
"timestamp": "2019-02-03T14:00:42",
"content": "“Radioactivity stirs up a lot of anxiety, partially because ionizing radiation is undetectable by any of the senses we were born with.”Till one get’s immersed in lots of it. Say a failed reactor.",
"... | 1,760,374,054.939707 | ||
https://hackaday.com/2019/02/03/open-source-biological-gear-for-the-masses/ | Open Source Biological Gear For The Masses | Tom Nardi | [
"Arduino Hacks",
"chemistry hacks",
"Raspberry Pi",
"Science"
] | [
"biology",
"microfluidics",
"microscope",
"syringe pump"
] | At the risk of putting too fine a point on it, Hackaday exists because people are out there building and documenting open source gadgets. If the person who built a particular gizmo is willing to show the world how they did it, consider us interested. Since you’re reading this, we’ll assume you are as well. Over the yea... | 8 | 6 | [
{
"comment_id": "5838919",
"author": "Rafael",
"timestamp": "2019-02-03T13:15:36",
"content": "What interesting experiments you can run on this hardware?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "5839076",
"author": "Ostracus",
"timestamp": "2019-... | 1,760,374,054.773046 | ||
https://hackaday.com/2019/02/02/high-style-ball-balancing-platform/ | High-Style Ball Balancing Platform | Dan Maloney | [
"Misc Hacks",
"Robots Hacks"
] | [
"atmega32u4",
"loop",
"opencv",
"pid",
"servo",
"Stewart platform",
"webcam"
] | If IKEA made
ball-balancing PID robots
, they’d probably look like this one.
This [Johan Link] build isn’t just about style. A look under the hood reveals not the standard, off-the-shelf microcontroller development board you might expect. Instead, [Johan] designed and built his own board with an ATmega32 to run the thr... | 14 | 9 | [
{
"comment_id": "5838741",
"author": "Ewald",
"timestamp": "2019-02-03T10:11:57",
"content": "If IKEA were to make these, i would buy it. True work of art!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "5838769",
"author": "p",
"timestamp": "2019-02-03... | 1,760,374,054.819167 | ||
https://hackaday.com/2019/02/02/microwave-parts-become-quick-and-nasty-jacobs-ladder/ | Microwave Parts Become Quick And Nasty Jacob’s Ladder | Lewin Day | [
"classic hacks"
] | [
"high voltage",
"jacob's ladder",
"microwave",
"microwave transformer"
] | The Jacob’s Ladder is an electrical device named after a biblical “ladder to Heaven”, consisting of a pair of vertically oriented conductors that spread apart vertically. These conductors are charged with high voltage, which creates the repeatedly climbing arc we’ve all come to know and love from science fiction movies... | 20 | 7 | [
{
"comment_id": "5838081",
"author": "Boris van Galvin",
"timestamp": "2019-02-03T04:05:13",
"content": "Put a resistor on the lower area where the gap is the closest. this will allow the thing to self strike. Set your start gap at about 2mm as on average 1000v will jump 1mm depending on the humidit... | 1,760,374,055.17149 | ||
https://hackaday.com/2019/02/01/portable-ham-antenna-gets-a-workout/ | Portable Ham Antenna Gets A Workout | Al Williams | [
"Radio Hacks"
] | [
"antenna",
"field day",
"ham radio",
"portable antenna"
] | Ham radio isn’t just one hobby. It is a bunch of hobbies ranging from chatting to building things, bouncing signals off the moon, and lots of things in between. Some of these specialties, such as supporting disaster relief or putting odd locations “on the air”, require portable operation. To encourage disaster readines... | 13 | 10 | [
{
"comment_id": "5835332",
"author": "Scaramouche",
"timestamp": "2019-02-02T05:04:09",
"content": "Interesting. Reminded me of a time I helped erect an HF antenna for a Civil Air Patrol training exercise. I know little about radio operation, but I remember the radio guy mentioning that HF often rad... | 1,760,374,055.615169 | ||
https://hackaday.com/2019/02/01/this-blinken-grid-is-all-analog/ | This Blinken Grid Is All Analog | Lewin Day | [
"LED Hacks"
] | [
"blinken light",
"blinken lights",
"blinkenlight",
"blinkenlights",
"led"
] | The personal computers of today are economical with their employ of the humble LED. A modern laptop might have a power LED, and a hard drive indicator if you’re lucky. It was the mainframes of the ’60s and ’70s that adhered to the holy
Doctrine of Blinken,
flickering lamps with abandon to indicate machine activity to t... | 31 | 9 | [
{
"comment_id": "5834772",
"author": "HarveyH54",
"timestamp": "2019-02-02T00:54:40",
"content": "I made something similar, but simpler. I used regular, cheap flashing red LEDs. They flash about a half second ON/OFF, but not exactly, no two seem the same. Mine is solar powered, charge the battery... | 1,760,374,055.794011 | ||
https://hackaday.com/2019/02/01/a-3d-printed-robotic-chariot-for-your-phone/ | A 3D Printed Robotic Chariot For Your Phone | Tom Nardi | [
"Microcontrollers",
"Robots Hacks"
] | [
"3D printed robot",
"ESP8266",
"gear motor",
"L298N",
"robotics",
"rover"
] | As we’ve said many times in the past, the wide availability of low-cost modular components has really lowered the barrier to entry for many complex projects which previously would have been nigh-on impossible for the hobbyist to tackle. The field of robotics has especially exploded over the last few years, as now even ... | 6 | 3 | [
{
"comment_id": "5834160",
"author": "spiritplumber",
"timestamp": "2019-02-01T21:21:25",
"content": "We did this in 2010, and shared the source back then :) it’s still up and it will run on old android phones.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "... | 1,760,374,055.567094 | ||
https://hackaday.com/2019/02/01/the-craziest-live-soldering-demo-is-the-cyborg-ring/ | The Craziest Live Soldering Demo Is The Cyborg Ring | Mike Szczys | [
"classic hacks",
"cons",
"Hackaday Columns"
] | [
"2018 Hackaday Superconference",
"Cyborg Ring",
"live demo",
"smd",
"soldering",
"surface mount",
"surface mount magic",
"Zach Fredin"
] | You can define the word crazy in myriad ways. Some would say using SMD resistors and QFN microcontrollers as structural elements is crazy. Some would say hand soldering QFN is crazy, much less trying to do it on edge rather than in the orientation the footprint is designed for. And of course
doing it live on stage in ... | 9 | 6 | [
{
"comment_id": "5833871",
"author": "Ren",
"timestamp": "2019-02-01T19:54:17",
"content": "You forgot to put [Zach’s] name in square brackets.(How long have you been working here? B^)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "5834543",
"author": "Da... | 1,760,374,055.665915 | ||
https://hackaday.com/2019/02/01/those-voices-in-your-head-might-be-lasers/ | Those Voices In Your Head Might Be Lasers | Al Williams | [
"digital audio hacks",
"Hackaday Columns",
"Laser Hacks",
"News"
] | [
"laser",
"mit",
"photoacoustic",
"photoacoustics",
"sound"
] | What if I told you that you can get rid of your headphones and still listen to music privately, just by shooting lasers at your ears?
The trick here is something called the photoacoustic effect. When certain materials absorb light — or any electromagnetic radiation — that is either pulsed or modulated in intensity, the... | 21 | 11 | [
{
"comment_id": "5833598",
"author": "Ren",
"timestamp": "2019-02-01T18:05:54",
"content": "Hopefully the lasers won’t ignite ear wax!B^)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5833784",
"author": "Max Siegieda (@CampGareth)",
"timest... | 1,760,374,055.729344 | ||
https://hackaday.com/2019/02/01/hackaday-podcast-004-taking-the-blue-pill-abusing-resistors-and-not-finding-drones/ | Hackaday Podcast 004: Taking The Blue Pill, Abusing Resistors, And Not Finding Drones | Mike Szczys | [
"Hackaday Columns",
"Podcasts"
] | [
"3d printing",
"bluepill",
"cardboard",
"Corrugated",
"drone",
"drones",
"exoskeleton",
"Hackaday Podcast",
"libopencm3",
"lightbulb",
"sorter",
"stm32"
] | Catch up on your Hackaday with this week’s podcast. Mike and Elliot riff on the Bluepill (ST32F103 boards), blackest of black paints, hand-crafted sorting machines, a 3D printer bed leveling system that abuses some 2512 resistors, how cyborgs are going mainstream, and the need for more evidence around airport drone sig... | 17 | 8 | [
{
"comment_id": "5833454",
"author": "sasza",
"timestamp": "2019-02-01T17:07:12",
"content": "Small, bug: link from newsletter brings to EP2 not here :)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5833472",
"author": "Mike Szczys",
"timest... | 1,760,374,055.900622 | ||
https://hackaday.com/2019/02/01/geared-cable-winder-keeps-vive-sync-cable-neatly-wound/ | Geared Cable Winder Keeps Vive Sync Cable Neatly Wound | Dan Maloney | [
"3d Printer hacks",
"contests"
] | [
"cable management",
"crank",
"crossback",
"follower",
"gear train",
"idler",
"thread",
"Vive"
] | Long cables are only neat once – before they’re first unwrapped. Once that little cable tie is taken off, a cable is more likely to end up rats-nested than neatly coiled.
Preventing that is the idea behind
this 3D-printed cable reel
. The cable that [Kevin Balke] wants to make easier to deal with is a 50 foot (15 meter... | 8 | 3 | [
{
"comment_id": "5833434",
"author": "mattd",
"timestamp": "2019-02-01T16:56:35",
"content": "It’s an interesting idea but between the tension and the tightness of the loop, this will shorten the cable life. You can avoid all of this and have a tidy cable by using this technique:https://www.youtube.... | 1,760,374,055.842688 | ||
https://hackaday.com/2019/02/01/digital-license-plates-are-here-but-do-we-need-them/ | Digital License Plates Are Here, But Do We Need Them? | Tom Nardi | [
"car hacks",
"Featured",
"Interest",
"Transportation Hacks"
] | [
"cloud",
"DMV",
"e-ink",
"internet of things",
"license plate",
"LTE"
] | It’s a story as old as time: you need to swap between your custom license plates, but you can’t find a screwdriver and you’re already running late for a big meeting at the Business Factory. You called AAA to see if they could come out and do it for you, but as luck would have it something must be wrong with your phone ... | 81 | 33 | [
{
"comment_id": "5833185",
"author": "Ostracus",
"timestamp": "2019-02-01T15:09:54",
"content": "“The question of whether or not the average car owner is willing to pay $800 to avoid the DMV is one we can’t really answer, though it might be more than a little compelling for anyone operating a fleet ... | 1,760,374,056.026934 | ||
https://hackaday.com/2019/02/01/so-you-bought-a-raspberry-pi-compute-module-what-now/ | So You Bought A Raspberry Pi Compute Module. What Now? | Jenny List | [
"Raspberry Pi"
] | [
"compute module",
"raspberry pi",
"Raspberry Pi Compute Module"
] | The Raspberry Pi Compute Module hasn’t seen as much attention as it should have in our community, probably because the equivalents from the familiar consumer range can be so much cheaper. When a Raspberry Pi Zero is a similar size to a Compute Module and costs so much less, we can’t blame you for asking what would be t... | 23 | 7 | [
{
"comment_id": "5832831",
"author": "RoGeorge",
"timestamp": "2019-02-01T12:06:36",
"content": "Bought a Raspberry Pi. What now?Put it in the drawer.:o)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5832880",
"author": "Elliot Williams",
"... | 1,760,374,056.089591 | ||
https://hackaday.com/2019/02/01/this-tiny-router-could-be-the-next-big-thing/ | This Tiny Router Could Be The Next Big Thing | Tom Nardi | [
"Linux Hacks",
"Network Hacks",
"Security Hacks"
] | [
"linux",
"network",
"openwrt",
"router",
"security",
"wireshark"
] | It seems like only yesterday that the Linksys WRT54G and the various open source firmware replacements for it were the pinnacle of home router hacking. But like everything else, routers have gotten smaller and faster over the last few years. The software we run on them has also gotten more advanced, and at this point w... | 22 | 10 | [
{
"comment_id": "5832567",
"author": "RoganDawes",
"timestamp": "2019-02-01T09:31:31",
"content": "This is definitely an interesting device from the perspective of computer security. It can be used as an alternative platform for USaBUSe-style attacks (https://hackaday.com/2016/08/17/universal-serial... | 1,760,374,056.153927 | ||
https://hackaday.com/2019/01/31/how-to-time-drone-races-without-transponders/ | How To Time Drone Races Without Transponders | Donald Papp | [
"Arduino Hacks",
"drone hacks",
"Video Hacks"
] | [
"arduino",
"drone",
"drone racing",
"raspberry pi",
"RX5808",
"video receiver",
"video transmitter",
"vtx"
] | Drone racing is nifty as heck, and a need all races share is a way to track lap times. One way to do it is to use transponders attached to each racer, and use a receiver unit of some kind to clock them as they pass by. People have rolled their own transponder designs with some success, but the next step is ditching add... | 10 | 5 | [
{
"comment_id": "5832399",
"author": "Kyle",
"timestamp": "2019-02-01T07:48:18",
"content": "RX508? Is that newer than RX5808?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5842317",
"author": "Donald Papp",
"timestamp": "2019-02-04T09:33:21... | 1,760,374,056.273457 | ||
https://hackaday.com/2019/01/31/a-science-lab-in-your-pocket/ | A Science Lab In Your Pocket? | Al Williams | [
"Tool Hacks"
] | [
"fossasia",
"oscilloscope",
"pocket science lab",
"pslab"
] | Since even the cheapest phone or computer now has plenty of horsepower, there’s been a move to create instruments that can do everything, using a reasonably simple front end and crunching data back on the host device. This is one of those tasks that seems easy, but doing it well turns out to be a lot of effort. One we ... | 13 | 9 | [
{
"comment_id": "5831847",
"author": "Ren",
"timestamp": "2019-02-01T03:43:22",
"content": "So, hook it up to a cheap SDR for a spectrum analyzer?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "5832012",
"author": "Alan",
"timestamp": "2019-02-01T04:37... | 1,760,374,056.44167 | ||
https://hackaday.com/2019/01/31/this-chromecast-volume-knob-has-a-certain-70s-chic/ | This Chromecast Volume Knob Has A Certain ’70s Chic | Lewin Day | [
"classic hacks",
"Slider"
] | [
"audio",
"chromecast",
"ESP8266",
"streaming",
"volume control",
"Volume knob"
] | Chromecast devices have become popular in homes around the world in the last few years. They make it easy to cast audio or video from a smartphone or laptop, to a set of speakers or a display connected to the same network. [Akos] wanted to control the volume on these devices with a single, simple piece of equipment, ra... | 10 | 5 | [
{
"comment_id": "5831162",
"author": "drenehtsral",
"timestamp": "2019-02-01T00:14:39",
"content": "Just don’t set two of them down next to each other…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5831269",
"author": "TheRegnirps.",
"timest... | 1,760,374,056.541051 | ||
https://hackaday.com/2019/01/31/k40-gets-a-leg-up-with-open-source-z-table/ | K40 Gets A Leg Up With Open Source Z Table | Tom Nardi | [
"Laser Hacks"
] | [
"aluminum extrusion",
"K40",
"laser cutter",
"stepper motor",
"Z table",
"z-axis"
] | If you’ve done even the most cursory research into buying a laser cutter, you’ve certainly heard of the K40. Usually selling for around $400 USD online, the K40 is not so much a single machine as a class of
very
similar 40 watt CO2 lasers from various Chinese manufacturers. As you might expect, it takes considerable co... | 14 | 3 | [
{
"comment_id": "5831553",
"author": "Queeg",
"timestamp": "2019-02-01T02:13:05",
"content": "What keeps the laser from toasting the drive belt? Is it too out of focus by the time it hits it?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5831652",
"... | 1,760,374,056.497588 | ||
https://hackaday.com/2019/01/30/3d-printer-is-soft-on-robots/ | This 3D Printer Is Soft On Robots | Al Williams | [
"3d Printer hacks",
"Robots Hacks"
] | [
"3d printing",
"robot",
"silicone",
"soft robot"
] | It always seems to us that the best robots mimic things that are alive. For an example look no further than the
3D printed mesh structures
from researchers at North Carolina State University. External magnetic fields make the mesh-like “robot” flex and move while floating in water. The mechanism can grab small objects ... | 0 | 0 | [] | 1,760,374,056.620098 | ||
https://hackaday.com/2019/01/30/recover-data-from-damaged-chips/ | Recover Data From Damaged Chips | Bryan Cockfield | [
"Teardown"
] | [
"chip",
"emmc",
"glass",
"memory",
"reflow",
"repair",
"solder",
"solid state"
] | Not every computer is a performance gaming rig. Some of us need cheap laptops and tablets for simple Internet browsing or word processing, and we don’t need to shell out thousands of dollars just for that. With a cheaper price tag comes cheaper hardware, though, such as the eMMC standard which allows flash memory to be... | 6 | 5 | [
{
"comment_id": "5826845",
"author": "Hirudinea",
"timestamp": "2019-01-31T00:18:45",
"content": "Well I’ll never be able to do it but I have to hand it to him, good work!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "5826865",
"author": "regdog",
"ti... | 1,760,374,056.583839 | ||
https://hackaday.com/2019/01/30/3d-printed-wheels-get-some-much-needed-grip/ | 3D Printed Wheels Get Some Much Needed Grip | Tom Nardi | [
"3d Printer hacks",
"Parts"
] | [
"3D printed mold",
"mold",
"polyurethane",
"silicone rubber",
"tires",
"wheels"
] | You’d be hard-pressed to find more ardent supporters of 3D printing then we here at Hackaday; the sound of NEMA 17 steppers pushing an i3 through its motions sounds like a choir of angels to our ears. But we have to admit that the hard plastic components produced by desktop 3D printers aren’t ideal for a number of appl... | 11 | 7 | [
{
"comment_id": "5826145",
"author": "Joel B",
"timestamp": "2019-01-30T21:51:29",
"content": "Part of me has wondered about the cost of the polyurethane rubber. For some reason castors (small wheels) around here are seemingly expensive for what they are. I’ve been slowly making mobile working car... | 1,760,374,056.735243 | ||
https://hackaday.com/2019/01/30/pen-plotter-from-salvaged-printer-parts/ | Pen Plotter From Salvaged Printer Parts | Richard Baguley | [
"Arduino Hacks"
] | [
"arduino",
"plotter",
"Teeny"
] | Like many of us, [Benjamin Poilve] was fascinated when he took apart a broken printer. He kept the parts, but unlike most of us, he did something with them, building a
neat little plotter called the Liplo
. Most pen plotters work by moving the pen on two axes, but [Benjamin] took a different approach, using the frictio... | 17 | 8 | [
{
"comment_id": "5825841",
"author": "Bob",
"timestamp": "2019-01-30T20:32:27",
"content": "I scored an HP 7475a plotter cheap. I got it working but then what? It’s really not useful for anything. It’s fun to watch (once or twice) but it’s painfully slow for printing anything, and it’s lower quality... | 1,760,374,056.789744 | ||
https://hackaday.com/2019/01/30/ai-patent-trolls-now-on-the-job-for-drug-companies/ | AI Patent Trolls Now On The Job For Drug Companies | Dan Maloney | [
"chemistry hacks",
"Hackaday Columns",
"News",
"Original Art",
"Slider"
] | [
"ai",
"Chemistry",
"drug",
"expert systems",
"organic",
"patent",
"pharmaceutical",
"retrosynthesis",
"synthesis"
] | Love it or loathe it, the pharmaceutical industry is really good at protecting its intellectual property. Drug companies pour billions into discovering new drugs and bringing them to market, and they do whatever it takes to make sure they have exclusive positions to profit from their innovations for as long a possible.... | 39 | 14 | [
{
"comment_id": "5825590",
"author": "Leithoa",
"timestamp": "2019-01-30T18:16:52",
"content": "I acknowledge the potential for abuse here (as with any new tech) but I think you’re minimizing one important step in their process:“The researchers gave Chematica some rules, making certain key synthetic... | 1,760,374,056.873438 | ||
https://hackaday.com/2019/01/30/supportless-overhangs-just-reorient-gravity-by-90-degrees/ | Supportless Overhangs: Just Reorient Gravity By 90 Degrees | Donald Papp | [
"3d Printer hacks"
] | [
"3d printed",
"3d printer",
"overhang",
"printer sideways"
] | The 3D print by [critsrandom] in the image above may not look like much at first glance, until one realizes that the 90 degree overhang has no supports whatsoever. Never mind the messy bottom surface, and never mind that the part shown might avoid the problem entirely with some simple supports or a different print orie... | 14 | 5 | [
{
"comment_id": "5825508",
"author": "bluewraith",
"timestamp": "2019-01-30T17:24:33",
"content": "First use of the “dumb” tag, eh?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5825561",
"author": "Donald Papp",
"timestamp": "2019-01-30T17:... | 1,760,374,056.9256 | ||
https://hackaday.com/2019/01/30/how-to-make-your-own-springs-for-extruded-rail-t-nuts/ | How To Make Your Own Springs For Extruded Rail T-Nuts | Sonya Vasquez | [
"Hackaday Columns",
"how-to",
"Skills",
"Slider",
"Tool Hacks"
] | [
"aluminum extrusion",
"extruded profiles",
"extrusion",
"makerslide",
"OpenBeam",
"openbuilds",
"vslot"
] | Open-Source Extruded Profile systems are a mature breed these days. With Openbuilds, Makerslide, and Openbeam, we’ve got plenty of systems to choose from; and Amazon and Alibaba are coming in strong with lots of generic interchangeable parts. These open-source framing systems have borrowed tricks from some decades-old ... | 24 | 11 | [
{
"comment_id": "5825384",
"author": "Andy Pugh",
"timestamp": "2019-01-30T15:23:46",
"content": "The same technique works for 1/4″ spring wire, but the spool of wire sits where the spool of wire wants to sit.https://youtu.be/thtDRjgbxREDon’t be tempted to try heat-treatment. Small diameter spring w... | 1,760,374,056.999463 | ||
https://hackaday.com/2019/01/31/down-the-rabbit-hole-of-electronics-manufacturing/ | Down The Rabbit Hole Of Electronics Manufacturing | Mike Szczys | [
"cons"
] | [
"2018 Hackaday Superconference",
"badgelife",
"defcon",
"dragonfly",
"manufacturing"
] | If you want to build hundreds of a thing (and let’s face it, you do) now is a magical time to do it. Scale manufacturing has never been more accessible to the hardware hacker, but that doesn’t mean it’s turn-key with no question marks along the way. The path is there, but it’s not well marked and is only now becoming w... | 6 | 4 | [
{
"comment_id": "5830497",
"author": "Kevin",
"timestamp": "2019-01-31T20:36:30",
"content": "Should that be “time sync” as in synchronizing time or “time sink” as in time drain like water down a sink?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5830910",... | 1,760,374,057.048031 | ||
https://hackaday.com/2019/01/31/linux-fu-easier-file-watching/ | Linux Fu: Easier File Watching | Al Williams | [
"Linux Hacks",
"Skills",
"Slider"
] | [
"entr",
"inotify",
"linux",
"Linux Fu",
"systemd"
] | In an
earlier installment of Linux Fu
, I mentioned how you can use
inotifywait
to efficiently watch for file system changes. The comments had a lot of alternative ways to do the same job, which is great. But there was one very easy-to-use tool that didn’t show up, so I wanted to talk about it. That tool is
entr
. It i... | 22 | 5 | [
{
"comment_id": "5830436",
"author": "N",
"timestamp": "2019-01-31T20:19:59",
"content": "Yet another crude hack, made necessary by the poor design decision to base linux on POSIX. Between stuff like this, the nightmare called “systemd” and the terrible issues with asynchronous I/O, Linux is looking... | 1,760,374,057.135277 | ||
https://hackaday.com/2019/01/31/3d-print-that-charging-dock-for-your-3ds/ | 3D Print That Charging Dock For Your 3DS | Brian Benchoff | [
"3d Printer hacks",
"Nintendo DS Hacks",
"Nintendo Hacks"
] | [
"3d printing",
"3ds",
"Nintendo 3DS"
] | The Switch is the new hotness and everyone wants Nintendo’s new portable gaming rig nestled in a dock next to their TV, but what about Nintendo’s other portable gaming system? Yes, the New Nintendo 3DS can get a charging dock, and you can 3D print it with swappable plates that make it look like something straight out o... | 15 | 7 | [
{
"comment_id": "5829854",
"author": "Genki",
"timestamp": "2019-01-31T16:51:34",
"content": "A germanium diode is around 0.3v Put one in forward bias on USB power and you get around 4.7v",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "5829870",
"author": ... | 1,760,374,057.189588 | ||
https://hackaday.com/2019/01/31/ai-on-raspberry-pi-with-the-intel-neural-compute-stick/ | AI On Raspberry Pi With The Intel Neural Compute Stick | Sean Boyce | [
"ARM",
"Featured",
"how-to",
"Raspberry Pi",
"Skills",
"Slider"
] | [
"ai",
"artificial intellegence",
"facial recognition",
"intel neural compute stick",
"machine learning",
"Raspberry Pi 3 B+"
] | I’ve always been fascinated by AI and machine learning. Google TensorFlow
offers tutorials
and has been on my ‘to-learn’ list since it was first released, although I always seem to neglect it in favor of the shiniest new embedded platform.
Last July, I took note when Intel released the Neural Compute Stick. It looked l... | 58 | 13 | [
{
"comment_id": "5829533",
"author": "Ostracus",
"timestamp": "2019-01-31T15:09:36",
"content": "“Now run ./build_samples.sh, for me this ran for about 3 hours before failing at 54% complete.”Wondering if there’s a Raspberry Pi 3 Model B+ VM? Might speed things up, and lower the cost of failure.",
... | 1,760,374,057.297968 | ||
https://hackaday.com/2019/01/31/raspberry-pi-counts-down-to-the-last-bitcoin/ | Raspberry Pi Counts Down To The Last Bitcoin | Tom Nardi | [
"LED Hacks",
"Raspberry Pi"
] | [
"beautiful soup",
"bitcoin",
"cryptocurrency",
"MAX7219",
"raspberry pi",
"requests",
"ticker"
] | Even though it might appear to be pretend Internet money, by design, there are a finite number of Bitcoins available. In the same way that the limited amount of gold on the planet and the effort required to extract it from the ground keeps prices high, the scarcity of Bitcoin is intended to make sure it remains valuabl... | 15 | 7 | [
{
"comment_id": "5829439",
"author": "LordNothing",
"timestamp": "2019-01-31T14:36:59",
"content": "doesnt bitcoin need the miners to facilitate transactions? seems to be when the last coin is mined there will be no more incentives for miners to keep expensive hardware running and sucking power. the... | 1,760,374,057.357366 | ||
https://hackaday.com/2019/01/31/this-is-a-kickstarter-for-none-more-black/ | This Is A Kickstarter For None More Black | Brian Benchoff | [
"Art",
"Crowd Funding"
] | [
"Crowd Funding",
"kickstarter",
"paint",
"Vantablack"
] | Vantablack is the darkest pigment ever created, capable of absorbing 99.96% of visible light. If you cover something in Vantablack, it turns into a black hole. No detail is presented, and physical objects become silhouettes. Objects covered in Vantablack are outside the human experience. The mammalian mind cannot compr... | 103 | 26 | [
{
"comment_id": "5828437",
"author": "Andrea Console",
"timestamp": "2019-01-31T09:09:11",
"content": "I read something different on Kickstarter: “This means that the mattifiers we used in Black 2.0, which added a tiny grey tint, ARE NO LONGER NEEDED making a way blacker looking paint!”",
"paren... | 1,760,374,057.594387 | ||
https://hackaday.com/2019/01/30/this-satellite-finder-can-watch-amateur-tv/ | This Satellite Finder Can Watch Amateur TV | Lewin Day | [
"Radio Hacks"
] | [
"amateur radio",
"amateur television",
"amateur tv",
"ham radio",
"satellite finder"
] | Setting up satellite dishes can be a finicky business. To aid in the alignment of these precision antennas, satellite finders are often used which can display audio and video feeds from the satellite while also providing signal strength readouts for accurate adjustment.
However, these devices can also be used in intere... | 28 | 8 | [
{
"comment_id": "5827938",
"author": "BT",
"timestamp": "2019-01-31T06:14:40",
"content": "Thank you for the (youtube link) bit, much appreciated here.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5828367",
"author": "Dodo",
"timestamp": "2... | 1,760,374,057.659924 | ||
https://hackaday.com/2019/01/30/infrared-brute-force-attack-unlocks-tivo/ | Infrared Brute Force Attack Unlocks TiVo | Tom Nardi | [
"home entertainment hacks"
] | [
"brute force",
"infrared",
"IRLib2",
"remote control",
"TiVo"
] | While the era of the TiVo (and frankly, the idea of recording TV broadcasts) has largely come to a close, there are still dedicated users out there who aren’t quite ready to give up on the world’s best known digital video recorder. One such TiVo fanatic is [Gavan McGregor], who recently tried to put a TiVo Series 3 rec... | 44 | 10 | [
{
"comment_id": "5825238",
"author": "Sjaak",
"timestamp": "2019-01-30T12:50:51",
"content": "By looking at the title I hope it unlocked a secret service mode or easter egg…*Back to sleep*",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "5825295",
"author": ... | 1,760,374,057.746839 | ||
https://hackaday.com/2019/01/30/build-retro-games-with-script-8/ | Build Retro Games With Script-8 | Al Williams | [
"Software Development",
"Software Hacks"
] | [
"game",
"javascript",
"programming"
] | A whole generation of programmers learned to program by writing — or at least typing in — game programs for relatively simple computers like a TRS-80, a Commodore 64, or any of a handful of similar machines. These days, games are way more complicated and so are computers. Sure, it is more fun to play Skyrim than Snake,... | 17 | 8 | [
{
"comment_id": "5824776",
"author": "PypeBros",
"timestamp": "2019-01-30T09:04:26",
"content": "and apparently, it has learnt from (or rediscovered) Learnable Programming, too (http://worrydream.com/LearnableProgramming/)",
"parent_id": null,
"depth": 1,
"replies": [
{
"co... | 1,760,374,057.801697 | ||
https://hackaday.com/2019/01/29/the-tiniest-retropie/ | The Tiniest RetroPie | Bryan Cockfield | [
"handhelds hacks"
] | [
"3d printed",
"case",
"handheld",
"raspberry pi",
"retro",
"retropie",
"tiniest"
] | The RetroPie project is a software suite for the Raspberry Pi that allows the user to easily play classic video games through emulators. It’s been around for a while now, so it’s relatively trivial to get this set up with a basic controller and video output. That means that the race is on for novel ways of implementing... | 15 | 9 | [
{
"comment_id": "5824497",
"author": "BrightBlueJim",
"timestamp": "2019-01-30T07:00:19",
"content": "Are you freaking kidding me? I mean, I really wanted to say, “No, no, no, no, No, no, no, no, No, no, no, no, NO,” but this is just too cool.",
"parent_id": null,
"depth": 1,
"replies":... | 1,760,374,057.934232 | ||
https://hackaday.com/2019/01/29/continuous-computing-the-analog-way/ | Continuous Computing The Analog Way | Al Williams | [
"Misc Hacks"
] | [
"analog",
"analog computer",
"analog computing"
] | When your only tool is a hammer, everything starts to look like a nail. That’s an old saying and perhaps somewhat obvious, but our tools do color our solutions and sometimes in very subtle ways. For example, using a computer causes our solutions to take a certain shape, especially related to numbers. A digital computer... | 43 | 11 | [
{
"comment_id": "5824422",
"author": "light beams",
"timestamp": "2019-01-30T05:08:07",
"content": "Nyquist’s theorem says that an analog and digital circuit compute the same thing, both have the same notion of quantization and representational ability. So the only benefit of analog is if you can g... | 1,760,374,057.882668 | ||
https://hackaday.com/2019/01/29/dont-toss-that-bulb-it-knows-your-password/ | Don’t Toss That Bulb, It Knows Your Password | Tom Nardi | [
"home hacks",
"Security Hacks",
"Slider"
] | [
"dump",
"encryption",
"ESP32",
"ESP8266",
"firmware",
"security",
"Smart Bulb",
"ssid"
] | Whether it was here on Hackaday or elsewhere on the Internet, you’ve surely heard more than a few cautionary tales about the “Internet of Things” by now. As it turns out, giving every gadget you own access to your personal information and Internet connection can lead to unintended consequences. Who knew, right? But if ... | 70 | 30 | [
{
"comment_id": "5824179",
"author": "Augie5",
"timestamp": "2019-01-30T00:27:55",
"content": "So this affects wifi enabled bulbs but not zwave bulbs presumably..?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5825826",
"author": "weirdwhit",
... | 1,760,374,058.04441 | ||
https://hackaday.com/2019/01/29/follow-the-bouncing-needles-of-this-analog-meter-clock/ | Follow The Bouncing Needles Of This Analog Meter Clock | Dan Maloney | [
"clock hacks"
] | [
"clock",
"d'Arsonval",
"ds3232",
"moving coil",
"nano",
"rtc",
"timepiece"
] | Our community never seems to tire of clock builds. There are seemingly infinite ways to mark the passage of time, and finding unique ways to display it is endlessly fascinating.
There’s something about
this analog voltmeter clock
that really seems to have caught on with the Redditors who commented on
the r/DIY thread
w... | 12 | 7 | [
{
"comment_id": "5823947",
"author": "Ren",
"timestamp": "2019-01-29T21:04:15",
"content": "So, we have an analog phenomena, “time”, displayed in analog run by a digital computer…B^)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "5823971",
"author": "kdev"... | 1,760,374,058.091439 | ||
https://hackaday.com/2019/01/29/what-happens-when-a-regular-person-finds-a-huge-security-flaw/ | What Happens When A Regular Person Finds A Huge Security Flaw? | Brian Benchoff | [
"News",
"Security Hacks"
] | [
"apple",
"Balaclava",
"facetime",
"InfoSec"
] | The biggest news in the infosec world, besides the fact that balaclavas are becoming increasingly popular due to record-low temperatures across the United States, is that leet haxors can listen to you from your iPhone using FaceTime
without you even answering the call
. There are obvious security implications of this b... | 38 | 15 | [
{
"comment_id": "5823861",
"author": "Steven13",
"timestamp": "2019-01-29T20:01:39",
"content": "> It’s also the complete opposite of what security researchers suggestThat’s news to me. It would be nice if you elaborated.",
"parent_id": null,
"depth": 1,
"replies": [
{
"com... | 1,760,374,058.175335 | ||
https://hackaday.com/2019/01/29/plastics-petg/ | Plastics: PETG | Dan Maloney | [
"3d Printer hacks",
"Hackaday Columns"
] | [
"3d printing",
"Chemistry",
"PETG",
"plastics",
"science"
] | You’d be hard-pressed to walk down nearly any aisle of a modern food store without coming across something made of plastic. From jars of peanut butter to bottles of soda, along with the trays that hold cookies firmly in place to prevent breakage or let a meal go directly from freezer to microwave, food is often in very... | 30 | 13 | [
{
"comment_id": "5823739",
"author": "s0rce",
"timestamp": "2019-01-29T18:13:02",
"content": "I’ve also had reasonable success cutting PETG sheets with a cheap CO2 laser cutter, while not as nice as acrylic cuts the material is tougher.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,374,058.248894 | ||
https://hackaday.com/2019/01/29/interfacing-the-sidewinder-joystick-to-avrs/ | Interfacing The Sidewinder Joystick To AVRs | Lewin Day | [
"classic hacks"
] | [
"AVR",
"Joystick",
"microsoft",
"sidewinder"
] | The Sidewinder line was a series of gaming peripherals produced by Microsoft, starting in the 1990s. After some initial stumbles, several cutting edge joysticks were released, at a time when the home computer market was in a state of flux, transitioning from legacy interfaces like serial and parallel to the more modern... | 27 | 6 | [
{
"comment_id": "5823673",
"author": "gregkennedy",
"timestamp": "2019-01-29T17:01:56",
"content": "I thought the Linux kernel had a driver for this protocol. Much easier than going through a patent or reversing via scope.",
"parent_id": null,
"depth": 1,
"replies": [
{
"c... | 1,760,374,058.495352 | ||
https://hackaday.com/2019/01/29/now-thats-what-i-call-crypto-10-years-of-the-best-of-bitcoin/ | Now That’s What I Call Crypto: 10 Years Of The Best Of Bitcoin | Brian Benchoff | [
"Featured",
"History",
"Interest"
] | [
"bitcoin",
"cryptocurrency",
"dogecoin",
"silk road"
] | On January 3rd, 2009, the Genesis Block was created. This was the first entry on the Bitcoin blockchain. Because of the nature of Bitcoin, all transactions lead back to this block. This is where Bitcoin began, almost exactly ten years ago.
The Genesis Block was created by Satoshi, a person or persons we know nothing ab... | 18 | 9 | [
{
"comment_id": "5823524",
"author": "Ostracus",
"timestamp": "2019-01-29T15:12:46",
"content": "“The first popular use of Bitcoin, outside weird forums based out of Neckbeardistan, was as a way to buy drugs.”Paying Ransomware demands.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,374,058.310567 | ||
https://hackaday.com/2019/01/29/under-the-hood-of-leica-camera-firmware/ | Under The Hood Of Leica Camera Firmware | Lewin Day | [
"classic hacks"
] | [
"camera",
"firmware",
"leica",
"reverse engineering"
] | There’s nothing quite like waiting for something you’ve ordered online to arrive. In [Alex]’s case, he’d ordered a new Leica camera, only to find out there was a six month backlog in shipping. Wanting to whet his thirst regardless, he decided to investigate the Leica website,
and reverse engineered a whole heap of came... | 11 | 7 | [
{
"comment_id": "5823393",
"author": "Robert Mateja",
"timestamp": "2019-01-29T12:23:37",
"content": "Fantastic HACK!!! So now we have CHDK for Leica instead of Canon.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5823601",
"author": "ThisGuy",
... | 1,760,374,058.543414 | ||
https://hackaday.com/2019/01/29/adventures-in-power-outage-hacking/ | Adventures In Power Outage Hacking | Dan Maloney | [
"Misc Hacks"
] | [
"battery bank",
"grid",
"Heat pump",
"improvisation",
"inverter",
"mains",
"outage",
"power failure",
"survival"
] | The best type of power outage is no power outage, but they will inevitably happen. When they do, a hacker with a house full of stuff and a head full of ideas is often the person of the hour. Or the day, or perhaps the week, should the outage last long past the fun little adventure phase and become a nuisance or even an... | 33 | 8 | [
{
"comment_id": "5823283",
"author": "dave",
"timestamp": "2019-01-29T10:47:00",
"content": "“His main asset was a wood cook stove in the basement of the house”Really?His main asset was having a bazillon UPS’s and over sized battery banks in various rooms around his house.",
"parent_id": null,
... | 1,760,374,058.627509 | ||
https://hackaday.com/2019/01/28/tiny-cheap-arm-boards-get-wifi/ | Tiny Cheap ARM Boards Get WiFi | Brian Benchoff | [
"Microcontrollers"
] | [
"ESP8266",
"Seeed",
"W600"
] | Over the last few years, we’ve seen the value of putting tiny WIFi-enabled microcontrollers on a module that costs a dollar or two. Those smart light bulbs in your house probably have an ESP8266 in them, and you can build a WiFi-enabled anything with one of these chips for next to no money. Now there’s a new module tha... | 35 | 10 | [
{
"comment_id": "5822926",
"author": "Hannes",
"timestamp": "2019-01-29T06:24:41",
"content": "Is it really without USB (configuration via UART is a bit yesterday)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5823692",
"author": "pborges475",
... | 1,760,374,060.540346 | ||
https://hackaday.com/2019/01/28/solar-power-is-set-to-get-more-expensive/ | Solar Power Is Set To Get More Expensive | Al Williams | [
"green hacks",
"News"
] | [
"china",
"solar",
"solar panel",
"solar power"
] | The sun constantly bathes half the planet with energy. The energy may be free, but the methods for converting it to electricity cost money. Last year, the Chinese government cut subsidies to their solar panel manufacturers to shrink the industry which was perceived as bloated. This forced Chinese solar panel makers to ... | 51 | 11 | [
{
"comment_id": "5822686",
"author": "marcus",
"timestamp": "2019-01-29T03:42:52",
"content": "DONT buy “Made in China” …ok??",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5822697",
"author": "light beams",
"timestamp": "2019-01-29T03:52:36"... | 1,760,374,060.737041 | ||
https://hackaday.com/2019/01/28/shred-the-gnar-without-paddling/ | Shred The Gnar Without Paddling For Waves | Bryan Cockfield | [
"Toy Hacks",
"Transportation Hacks"
] | [
"battery",
"duct tape",
"motor",
"surf",
"trolling",
"waves"
] | [Ben Gravy] isn’t your average pro surfer. For one thing, he lives in New Jersey instead of someplace like Hawaii or Australia, and for another he became famous not for riding the largest waves but rather for riding the weirdest ones. He’s a novelty wave hunter, but some days even the obscure surf spots aren’t breaking... | 10 | 6 | [
{
"comment_id": "5822515",
"author": "Hirudinea",
"timestamp": "2019-01-29T00:14:11",
"content": "Well I wouldn’t call it fast but it is interesting. I have a question though, are there any battery chemistries that are lighter than water, if so you could make the entire surfboard the battery and use... | 1,760,374,061.039542 | ||
https://hackaday.com/2019/01/28/diy-vacuum-table-enhances-pcb-milling/ | DIY Vacuum Table Enhances PCB Milling | Donald Papp | [
"cnc hacks",
"Tool Hacks"
] | [
"cnc",
"diy",
"double sided",
"etching",
"milling",
"pcb",
"vacuum table"
] | CNC milling a copper-clad board is an effective way to create a PCB by cutting away copper to form traces instead of etching it away chemically, and [loska] has improved that process further with his
DIY PCB vacuum table
. The small unit will accommodate a 100 x 80 mm board size, which was not chosen by accident. That’... | 18 | 8 | [
{
"comment_id": "5822361",
"author": "macona",
"timestamp": "2019-01-28T21:10:26",
"content": "If you use a thin layer of particle board between the cob and the vacuum plate as a spoil board the air will go through it and pull the pcb down. Then you can drill with the same setup.FWIW, you don’t need... | 1,760,374,060.464407 | ||
https://hackaday.com/2019/01/28/ben-krasnow-at-supercon-making-alien-technology-in-your-own-shop/ | Ben Krasnow At Supercon: Making Alien Technology In Your Own Shop | Elliot Williams | [
"chemistry hacks",
"cons",
"Hackaday Columns"
] | [
"2018 Hackaday Superconference",
"3d printed circuits",
"ben krasnow",
"electroluminescence",
"electroluminescent",
"talk"
] | Ben Krasnow has a vision of future electronics: instead of the present PCB-screwed-into-a-plastic-box construction, flexible circuits will be deposited straight onto the plastic body of the device itself, merging the physical object and its electronics. There is existing copper-on-plastic technology, but
Ben’s got some... | 25 | 7 | [
{
"comment_id": "5822351",
"author": "Beerheart Fatoush",
"timestamp": "2019-01-28T21:05:06",
"content": "The summary starts out making this sound so revolutionary. I was expecting printed semiconductors or something like that. Sure, printing traces is cool and all but then what? Do you quickly sold... | 1,760,374,061.10189 | ||
https://hackaday.com/2019/01/28/the-cyborgs-among-us-exoskeletons-go-mainstream/ | The Cyborgs Among Us: Exoskeletons Go Mainstream | Dan Maloney | [
"Hackaday Columns",
"News",
"Slider"
] | [
"cyborg",
"disabled",
"exoskeleton",
"health",
"paraplegic",
"physical therapy",
"prosthetic",
"therapy"
] | Every technological advancement seems to have a sharp inflection point, a time before which it seems like any early adopters are considered kooks, but beyond which the device or service quickly becomes so mainstream that non-adopters become the kooky ones. Take cell phones, for example – I clearly remember a news repor... | 39 | 13 | [
{
"comment_id": "5822047",
"author": "Weirdwhit",
"timestamp": "2019-01-28T18:04:58",
"content": "“I’d like to point out that that test pilot survived” -Justin Hammer, CEO of Hammer Industries",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5823916",
... | 1,760,374,060.815599 | ||
https://hackaday.com/2019/01/28/raspberry-pis-latest-upgrade-the-compute-module-3/ | Raspberry Pi’s Latest Upgrade: The Compute Module 3+ | Jenny List | [
"News",
"Raspberry Pi"
] | [
"compute module",
"raspberry pi",
"Raspberry Pi Compute Module"
] | We’ve become so used to the Raspberry Pi line of boards that have appeared in ever-increasing power capabilities since that leap-year morning in 2012 when the inexpensive and now ubiquitous single board computer was announced and oversold its initial production run. The consumer boards have amply fulfilled their missio... | 65 | 14 | [
{
"comment_id": "5822002",
"author": "perry",
"timestamp": "2019-01-28T17:37:57",
"content": "With the price of these things there is no way on earth I would get any.I realy think that they should be more in the price of a hobby person.Heck PI Zero’s are way over priced at over $25 with shipping. A ... | 1,760,374,060.912918 | ||
https://hackaday.com/2019/01/28/automate-your-comfort-food-prep-with-an-iot-grilled-cheese-robot/ | Automate Your Comfort Food Prep With An IoT Grilled Cheese Robot | Dan Maloney | [
"cooking hacks"
] | [
"cheese",
"conveyor",
"food prep",
"google assistant",
"grilled",
"IoT",
"sandwich",
"vacuum"
] | What exactly qualifies as comfort food is very much in the palate of the comfortee. Grilled cheese may not work for everyone under every circumstance, but we’ll risk a bet that the gooey delicacy is pretty close to universal, especially when you’re under the weather.
But if you’re too sick to grill up your own and don’... | 22 | 9 | [
{
"comment_id": "5821902",
"author": "anon",
"timestamp": "2019-01-28T16:20:26",
"content": "One slice of cheese??? Heathens.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "5821908",
"author": "Ren",
"timestamp": "2019-01-28T16:28:22",
"content": "... | 1,760,374,060.602369 | ||
https://hackaday.com/2019/01/28/drone-sightings-a-new-british-comedy-soap-opera/ | Drone Sightings, A New British Comedy Soap Opera | Jenny List | [
"Current Events",
"drone hacks",
"Featured",
"News",
"Slider"
] | [
"drone",
"drone law",
"Gatwick airport",
"heathrow airport",
"multirotor"
] | There’s a new soap opera that I can’t stop watching. Actually, I wish I could change the channel but this is unfortunately happening in real life. It’s likely the ups and downs of drone sightings would be too far fetched for fiction anyway.
If you aren’t British, maybe you will know a little of our culture through the ... | 41 | 16 | [
{
"comment_id": "5821874",
"author": "pingusfecit",
"timestamp": "2019-01-28T16:00:34",
"content": "May I suggesthttps://hackaday.com/wp-content/uploads/2017/07/aircraft-id-guide-for-airline-pilots.jpg?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5823833"... | 1,760,374,060.994476 | ||
https://hackaday.com/2019/01/28/polish-retro-silicon-brings-this-computer-to-life/ | Polish Retro Silicon Brings This Computer To Life | Jenny List | [
"classic hacks"
] | [
"8080",
"basic",
"MCY7880",
"Poland",
"Polish 8080"
] | It is an easy trap for us to write only about what we know when covering a topic, thus missing an entire facet of our subject matter. Take retrocomputing for example; we might write about American or Western European machines because we grew up with them, while completely ignoring the hardware being produced on the oth... | 12 | 6 | [
{
"comment_id": "5821649",
"author": "jkramarz",
"timestamp": "2019-01-28T12:54:43",
"content": "UCY7404 is just a CMOS 7404 hex inverter; UCY74S424 is an equivalent of “western” Intel 8224 clock generator and UCY74S405 replaces Intel 8205 binary decoder.",
"parent_id": null,
"depth": 1,
... | 1,760,374,060.650811 | ||
https://hackaday.com/2019/01/28/tiny-voltmeter-uses-dna/ | Tiny Voltmeter Uses DNA | Al Williams | [
"News"
] | [
"biology",
"dna",
"voltair",
"voltmeter"
] | We use a lot of voltmeters and we bet you do too. We have some big bench meters and some panel meters and even some tiny pocket-sized meters. But biological researchers at the University of Chicago and Northwestern University have even smaller ones. They’ve worked out a way to use
a DNA-based fluorescent reporter to in... | 4 | 2 | [
{
"comment_id": "5821522",
"author": "jafinch78",
"timestamp": "2019-01-28T10:05:48",
"content": "Ew… interesting… tangent time:https://www.biorxiv.org/content/biorxiv/early/2019/01/16/523019.full.pdf",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5821533",
... | 1,760,374,061.412921 | ||
https://hackaday.com/2019/01/27/reworking-mt3608-boost-converters-for-lower-idle-current-draw/ | Reworking MT3608 Boost Converters For Lower Idle Current Draw | Lewin Day | [
"classic hacks"
] | [
"boost converter",
"mt3608"
] | The MT3608 is a popular boost converter, able to easily step up DC voltages in useful ranges, at an incredibly low cost. Modules can be sourced from eBay for less than $2, built on a PCB, ready to go. One drawback of these modules, particularly when working with batteries, is the idle current draw, on the order of 1 to... | 33 | 12 | [
{
"comment_id": "5821367",
"author": "dmitry grinberg",
"timestamp": "2019-01-28T06:36:11",
"content": "please, add a “video” tagpleaseplease",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5821549",
"author": "2ftg",
"timestamp": "2019-01-28T... | 1,760,374,061.482591 | ||
https://hackaday.com/2019/01/27/badland-brawler-lets-arduino-tackle-terrain/ | Badland Brawler Lets Arduino Tackle Terrain | Al Williams | [
"Arduino Hacks",
"Robots Hacks"
] | [
"4wd",
"arduino",
"four wheel drive",
"MKR1000",
"robot",
"wifi"
] | For an electronics person, building the mechanics of a robot — especially a robust robot — can be somewhat daunting. [Jithin] started with an off-the-shelf 4 wheel drive chassis to build
an off-road Arduino robot
he calls the Badland Brawler. The kit was a bit over $100, but as you can see in the video below, it is pre... | 6 | 4 | [
{
"comment_id": "5821368",
"author": "Dave",
"timestamp": "2019-01-28T06:36:39",
"content": "This is just an advertisement. :-(. Oh no, I’ve been a hackaday reader since the very early days and never even thought that I would see this.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,374,061.645017 | ||
https://hackaday.com/2019/01/27/hackaday-links-january-27-2019/ | Hackaday Links: January 27, 2019 | Brian Benchoff | [
"Hackaday Columns",
"Hackaday links"
] | [
"behringer",
"NAMM",
"synth",
"synthesizer"
] | Once again, Uber found a company to build their ‘air taxis’.
This time it’s Boeing
. While there are no details on the Boeing bird, I’m going to propose again that Uber buy the Santa Monica airport as a hub for their air taxi program; SMO is going to be shut down
anyway
, and this is the funniest reality that can come ... | 15 | 9 | [
{
"comment_id": "5820797",
"author": "Steven13",
"timestamp": "2019-01-28T00:06:39",
"content": "Most Venn diagrams with two catagories are two circles. Perhaps you meant something else, like “two non overlapping circles” perhaps?",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,374,061.69965 | ||
https://hackaday.com/2019/01/27/air-knife-keeps-gopro-lens-clean-in-messy-environments/ | Air Knife Keeps GoPro Lens Clean In Messy Environments | Lewin Day | [
"Video Hacks"
] | [
"air knife",
"camera",
"go pro",
"GoPro",
"lens cleaner",
"video camera"
] | Before the GoPro, shooting video of messy, fast-paced, or dangerous things was very different. There were commercial sports camera rigs and various industrial solutions, but the GoPro, with its waterproof housings and diminutive size, was the revolutionary, stick-it-anywhere camera. Despite this, the team at [tarkka] w... | 21 | 7 | [
{
"comment_id": "5820729",
"author": "FirefighterGeek???? (@FirefighterGeek)",
"timestamp": "2019-01-27T23:17:55",
"content": "I’d love to have something like this for the backup camera on my ford.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5821153",
... | 1,760,374,061.97315 | ||
https://hackaday.com/2019/01/27/quartet-of-smd-resistors-used-to-sense-z-axis-height/ | Quartet Of SMD Resistors Used To Sense Z-Axis Height | Dan Maloney | [
"3d Printer hacks"
] | [
"attiny85",
"bed leveling",
"hx711",
"load cell",
"smd",
"strain gauge",
"wheatstone bridge",
"z-height"
] | Here’s a neat trick for your next 3D-printer build or retrofit:
a Z-axis sensor using a DIY strain gauge made from SMD resistors
. We’re betting it could have plenty of other applications, too.
Conventional load cells, at least the ones you can pick up cheaply from the usual sources or harvest from old kitchen or bathr... | 34 | 10 | [
{
"comment_id": "5820262",
"author": "varnahe",
"timestamp": "2019-01-27T18:15:50",
"content": "How does it work exactly? Has it got to do with the carbon inside?This is really interesting.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5820463",
"au... | 1,760,374,061.865852 | ||
https://hackaday.com/2019/01/27/open-source-fader-bank-modulates-our-hearts/ | Open Source Fader Bank Modulates Our Hearts | Kerry Scharfglass | [
"Microcontrollers",
"Musical Hacks"
] | [
"control voltage",
"diy",
"fader",
"mini",
"Modular synthesizer",
"monome",
"music",
"oshw",
"synthesizer",
"Teensy"
] | Here at Hackaday, we love knobs and buttons. So what could be better than one button? How about 16! No deep philosophy about the true nature of Making here; [infovore], [tehn], and [shellfritsch] put together a very slick, very adaptable
bank of 16 analog faders
for controlling music synthesis. If you don’t recognize t... | 9 | 4 | [
{
"comment_id": "5820174",
"author": "bigbob",
"timestamp": "2019-01-27T17:25:37",
"content": "Thank you for uploading a PDF of your schematic unlike so many. I’d recommend not overlapping symbols in your schematics, and also not leaving question marks in your sheet ports.",
"parent_id": null,
... | 1,760,374,061.918866 | ||
https://hackaday.com/2019/01/27/casting-concrete-with-3d-printed-molds/ | Casting Concrete With 3D Printed Molds | Al Williams | [
"3d Printer hacks"
] | [
"3d printing",
"concrete",
"mortar",
"plaster"
] | [Thomas Sanladerer] wanted to create some molds using
3D printing for concrete and plaster
. He used a delta printer with flexible filament and documented his process in the video below.
If you’ve printed with flexible filaments before, you know you need an extruder that has a contained path. [Tom] borrowed a printer, ... | 13 | 6 | [
{
"comment_id": "5820113",
"author": "Fly Hammer",
"timestamp": "2019-01-27T17:12:00",
"content": "If I was the sponsor of this video, I would have rather Sanladerer did a project that my printer could have done without modification…but maybe that’s just me.",
"parent_id": null,
"depth": 1,
... | 1,760,374,062.02541 | ||
https://hackaday.com/2019/01/27/rebuilding-the-first-vocal-encryption-system/ | Rebuilding The First Vocal Encryption System | Dan Maloney | [
"classic hacks"
] | [
"adc",
"crypto",
"encryption",
"quantizer",
"SIGSALY",
"thyratron",
"vacuum tube",
"vocoder"
] | Back in the early days of radio, it was quickly apparent that the technology would revolutionize warfare, but only if some way could be found to prevent enemies from hearing what was said. During World War II, the Allies put a considerable amount of effort into securing vocal transmissions, resulting in a system called... | 12 | 7 | [
{
"comment_id": "5819463",
"author": "BT",
"timestamp": "2019-01-27T10:22:55",
"content": "Very interesting and a great project and write-up, and not having to play a youtube video much appreciated, thank you.Here in the UK we can go around Bletchley Park and see and learn much about the Allies code... | 1,760,374,061.79527 | ||
https://hackaday.com/2019/01/26/the-voice-of-dave-now-in-toy-form/ | The Voice Of Dave, Now In Toy Form | Lewin Day | [
"Toy Hacks"
] | [
"dave jones",
"EEVblog",
"speak n say",
"toy"
] | Dave Jones is something of a celebrity in the hacker and maker communities, bringing his considerable knowledge and experience to bear on a wide variety of electronic and engineering topics. His unique voice and candor have endeared him to many, and he’s one of the more quotable YouTubers currently on the scene.
With t... | 13 | 8 | [
{
"comment_id": "5819124",
"author": "Dave Jones (@eevblog)",
"timestamp": "2019-01-27T07:03:39",
"content": "Expect a cease and desist from my army of lawyers. And if this machine and all plans are not destroyed:https://www.youtube.com/watch?v=MeXQBHLIPcw",
"parent_id": null,
"depth": 1,
... | 1,760,374,061.748502 | ||
https://hackaday.com/2019/01/26/wifi-controlled-finger-dims-lights-over-udp/ | WiFi Controlled Finger Dims Lights Over UDP | Eric Evenchick | [
"home hacks",
"Microcontrollers"
] | [
"3d printing",
"dimmer",
"ESP8266",
"lighting",
"wemos d1 mini"
] | While WiFi controlled lights are readily available, replacing your lighting fixtures or switches isn’t always an option. [Thomas] ran into this issue with his office lights. For the developers in the office, these lights always seemed to run a little too bright. The solution? A 3D printed,
WiFi controlled finger
to pok... | 10 | 5 | [
{
"comment_id": "5818982",
"author": "Comedicles",
"timestamp": "2019-01-27T05:37:15",
"content": "https://www.youtube.com/watch?v=7lUAeBGmQiA",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "5819593",
"author": "Jan",
"timestamp": "2019-01-27T11:20:54",... | 1,760,374,062.071926 | ||
https://hackaday.com/2019/01/26/arduino-and-the-other-kind-of-homebrew/ | Arduino And The Other Kind Of Homebrew | Al Williams | [
"Arduino Hacks",
"Beer Hacks"
] | [
"arduino",
"beer",
"brewing",
"homebrew",
"sous-vide"
] | Usually, when we are talking about homebrew around here, we mean building your own equipment. However, most other people probably mean brewing beer, something that’s become increasingly popular as one goes from microbreweries to home kitchen breweries. People have been making beer for centuries so you can imagine it do... | 17 | 6 | [
{
"comment_id": "5818293",
"author": "paul",
"timestamp": "2019-01-27T00:43:55",
"content": "Belgian beer has been famous worldwide for its taste and variety, but in the last 20 years or so they have almost all been bought by a few big breweries. Recipies have been tweaked for lower price and mass p... | 1,760,374,062.122937 | ||
https://hackaday.com/2019/01/26/sorter-uses-cardboard-to-organize-card-hoard/ | Sorter Uses Cardboard To Organize Card Hoard | Kristina Panos | [
"Arduino Hacks"
] | [
"arduino",
"cardboard",
"reuse",
"stepper motor",
"thrust bearing",
"timing belt",
"world of warcraft"
] | If you collect trading cards of any kind, you know that storage quickly becomes an issue. Just ask [theguymasamato]. He used to be really into trading cards, and got back into it when his kids caught the bug. Now he’s sitting on 10,000+ cards that are largely unorganized except for a few that made it into sleeve pages.... | 13 | 6 | [
{
"comment_id": "5817687",
"author": "Max S.",
"timestamp": "2019-01-26T22:09:35",
"content": "Just the wheel by itself pushed against the wood by a spring (friction) and a magnet glued to each position to sense the stopping points (or refective tape, or any type of sensor). One position has two m... | 1,760,374,062.838097 | ||
https://hackaday.com/2019/01/26/3d-printed-microscope-stage-offers-precise-movement/ | 3D Printed Microscope Stage Offers Precise Movement | Richard Baguley | [
"News"
] | [
"microscope"
] | 3D printing isn’t something you would usually associate with a high precision device, but this one shows that it can be used to create rather intricate things when needed. The
Openflexure
is a microscope stage that offers a mechanical stage that can be maneuvered precisely. The optics can be swapped out so it uses anyt... | 8 | 5 | [
{
"comment_id": "5817430",
"author": "Rijwan Shah",
"timestamp": "2019-01-26T19:05:19",
"content": "Interesting topic…Anyway Thanks for sharing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "5817559",
"author": "Bill K",
"timestamp": "2019-01-26T21:38... | 1,760,374,062.782617 | ||
https://hackaday.com/2019/01/26/7-segment-display-is-3d-printed-and-hand-cranked/ | 7-Segment Display Is 3D Printed And Hand Cranked | Mike Szczys | [
"3d Printer hacks",
"contests"
] | [
"7-segment display",
"cams",
"gears",
"mechanical display",
"seven segment display"
] | [Peter Lehnér] has
designed a brilliant 7-segment flip-segment display
that doesn’t really flip. In fact, it doesn’t use electromagnets at all. This one is 3D printed and hand cranked. It’s a clever use of a cam system to set the segments for each digit (0-9) makes it a perfect entry in the
Hackaday 3D Printed Gears, P... | 17 | 11 | [
{
"comment_id": "5817264",
"author": "Ren",
"timestamp": "2019-01-26T15:39:20",
"content": "I can imagine a larger 4 digit version for kids soccer games!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "5817283",
"author": "Mart",
"timestamp": "2019-01-2... | 1,760,374,063.111404 | ||
https://hackaday.com/2019/01/26/macintosh-api-comes-to-linux-android/ | Macintosh API Comes To Linux, Android | Brian Benchoff | [
"classic hacks",
"Mac Hacks"
] | [
"Advanced Mac Substitute",
"macintosh",
"Macintosh ROM"
] | Unlike DOS, early versions of Windows, and most *nixes, the classic Mac operating system is weird. Contained in the ROM are subroutines to draw windows, pop up dialog boxes, and other various tasks purely related to the UI. On other systems, this would be separate from the BIOS, but in your Mac from the 80s, everything... | 32 | 14 | [
{
"comment_id": "5817115",
"author": "imroy264",
"timestamp": "2019-01-26T12:32:12",
"content": "So, this is sorta like Wine for 68K MacOS?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5817322",
"author": "gregkennedy",
"timestamp": "2019-0... | 1,760,374,063.177783 | ||
https://hackaday.com/2019/01/26/restoring-a-forgotten-dot-matrix-printer/ | Restoring A Forgotten Dot-Matrix Printer | Jenny List | [
"classic hacks",
"Peripherals Hacks"
] | [
"commodore",
"dot matrix",
"dot matrix printer",
"printer"
] | Dot matrix printers are the dinosaurs that won’t go extinct. They are not unlike a typewriter with the type bars behind the ink ribbon replaced by a row of metal pins controlled by solenoids, each pin being capable of printing a single pixel. At their best they could deliver a surprising level of quality, but their sou... | 15 | 9 | [
{
"comment_id": "5817146",
"author": "johnrpm",
"timestamp": "2019-01-26T13:04:44",
"content": "Banks still use them, real hard copy that will not fade and low cost per page, I have a dot printhead intended to become a multi micro-valve printhead when time permits, just got to love the old tech.",
... | 1,760,374,062.694379 | ||
https://hackaday.com/2019/01/25/this-beer-keg-is-a-side-car/ | This Beer Keg Is A Side Car | Bryan Cockfield | [
"Transportation Hacks"
] | [
"beer keg",
"bicycle",
"bike",
"electric",
"fabrication",
"hinge",
"metal",
"side car",
"transportation",
"welding"
] | Bikes are a great way to get around. They’re cheap compared to cars and can be faster through city traffic, and you can get some exercise at the same time. The one downside to them is that the storage capacity is often extremely limited. Your choices are various bags strapped to the bike (or yourself), a trailer, or pe... | 17 | 8 | [
{
"comment_id": "5816767",
"author": "Clara",
"timestamp": "2019-01-26T06:05:21",
"content": "There’s no way she’s getting the deposit back on that keg now.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5816939",
"author": "macona",
"timesta... | 1,760,374,063.053949 | ||
https://hackaday.com/2019/01/25/pocket-forth-invades-your-ti-calculator/ | Pocket Forth Invades Your TI Calculator | Al Williams | [
"Microcontrollers"
] | [
"calculator",
"forth",
"operating system",
"ti-84"
] | TI certainly have certainly seen off rivals such as HP or Casio to capture the lion’s share of the calculator market. The TI-84 is a real staple, and with as many units as there are out there, hacking them is a given. However, selecting an operating system for the machine can be a hassle. TI-OS is proprietary and doesn... | 7 | 3 | [
{
"comment_id": "5817168",
"author": "Bob",
"timestamp": "2019-01-26T13:25:49",
"content": "That means that a TI calculator is using Reverse Polish Notation! How ironic.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "5817379",
"author": "MvK",
"timesta... | 1,760,374,062.73641 | ||
https://hackaday.com/2019/01/25/brushless-r-c-rocket-tests-different-flight-regimes/ | Brushless R/C Rocket Tests Different Flight Regimes | Lewin Day | [
"drone hacks"
] | [
"brushless motor",
"flight control",
"radio control",
"rc",
"rocket"
] | Quadcopters are familiar, and remote control planes are old hat at this point. However, compact lightweight power systems and electronic flight controllers continue to make new flying vehicles possible. In that vein,
[rctestflight] has been experimenting with a brushless electric rocket craft, with interesting results.... | 31 | 14 | [
{
"comment_id": "5816486",
"author": "Alex99a",
"timestamp": "2019-01-26T00:06:12",
"content": "It isn’t a rocket.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5816545",
"author": "dr.rockzo",
"timestamp": "2019-01-26T02:28:56",
"co... | 1,760,374,063.297902 | ||
https://hackaday.com/2019/01/25/billiard-ball-finds-a-new-home-in-custom-trackball-mouse/ | Billiard Ball Finds A New Home In Custom Trackball Mouse | Dan Maloney | [
"Misc Hacks"
] | [
"arcade button",
"encoder",
"hid",
"mouse",
"optical",
"Teensy",
"trackball"
] | They walk among us, unseen by polite society. They seem ordinary enough on the outside but they hide a dark secret – sitting beside their keyboards are trackballs instead of mice. We know, it’s hard to believe, but that’s the wacky world we live in these days.
But we here at Hackaday don’t judge based on alternate inpu... | 38 | 12 | [
{
"comment_id": "5816399",
"author": "Ren",
"timestamp": "2019-01-25T21:02:51",
"content": "Back in the early 1990’s we tested a “military grade” trackball that used a cue ball inside a strong metal case.I don’t have the name of the mfgr handy.",
"parent_id": null,
"depth": 1,
"replies":... | 1,760,374,063.000579 | ||
https://hackaday.com/2019/01/25/how-to-deal-with-a-cheap-spectrum-analyzer/ | How To Deal With A Cheap Spectrum Analyzer | Brian Benchoff | [
"cons",
"Hackaday Columns",
"hardware",
"Tool Hacks"
] | [
"2018 Hackaday Superconference",
"Hackaday Journal",
"journal"
] | The Hackaday Superconference is all about showcasing the hardware heroics of the Hackaday community. We also have
a peer-reviewed journal
with the same goal, and for the 2018 Hackaday Superconference we got a taste of the first paper to make it into our fully Open Access Journal. It comes from Ted Yapo, it is indeed a ... | 14 | 7 | [
{
"comment_id": "5816369",
"author": "Ren",
"timestamp": "2019-01-25T19:43:08",
"content": "I’m confused,Network Analyzer…Spectrum Analyzer…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5816633",
"author": "Diego",
"timestamp": "2019-01-26T... | 1,760,374,063.233889 | ||
https://hackaday.com/2019/01/25/circuit-vr-redundant-flip-flops-and-voting-logic/ | Circuit VR: Redundant Flip Flops And Voting Logic | Al Williams | [
"FPGA",
"Hackaday Columns",
"Skills"
] | [
"flip-flop",
"radiation",
"redundancy",
"tmr",
"triple module redundancy"
] | We are somewhat spoiled because electronics today are very reliable compared to even a few decades ago. Most modern electronics obey the bathtub curve. If they don’t fail right away, they won’t fail for a very long time, in all likelihood. However, there are a few cases where that’s not a good enough answer. One is whe... | 8 | 5 | [
{
"comment_id": "5816390",
"author": "Snoogerbot",
"timestamp": "2019-01-25T20:28:00",
"content": "While this article was about hardware redundancy I think a mention of software redundancy would have been nice. For instance, the space shuttle has 5 AP-101 computers. During normal operation three of ... | 1,760,374,063.607934 | ||
https://hackaday.com/2019/01/25/hackaday-podcast-003-igloos-lidar-and-the-blinking-led-of-rf-hacking/ | Hackaday Podcast 003: Igloos, Lidar, And The Blinking LED Of RF Hacking | Mike Szczys | [
"Hackaday Columns",
"Podcasts"
] | [
"433 mhz",
"dot matrix printer",
"ffmpeg",
"gears",
"Hackaday Podcast",
"igloo",
"lidar",
"rfid",
"rfid sensors",
"sox",
"Toki Pona"
] | I
t’s cold outside! So grab a copy of the Hackaday Podcast, and catch up on what you missed this week.
Highlights include a dip into audio processing with sox and FFMPEG, scripting for Gmail, weaving your own carbon fiber tubes, staring into the sharpest color CRT ever, and unlocking the secrets of cheap 433 MHz device... | 8 | 5 | [
{
"comment_id": "5822176",
"author": "Squintz",
"timestamp": "2019-01-28T19:04:11",
"content": "Ok, I’ll bite and leave a comment. I’m enjoying the HaD podcast during work. Thank you for taking the time to produce them.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comme... | 1,760,374,063.841347 | ||
https://hackaday.com/2019/01/25/a-genesis-inspired-synthesizer-that-has-nothing-to-do-with-phil-collins/ | A Genesis Inspired Synthesizer That Has Nothing To Do With Phil Collins | Lewin Day | [
"Musical Hacks"
] | [
"fm synth",
"fm synthesis",
"genesis",
"sega",
"sega genesis",
"YM2612"
] | Chiptune is a musical genre built upon the creation of music through the use of chip-based sound synthesizers, found in early game consoles. The Commodore 64’s venerable SID chip and the Game Boy Sound System are the by far the most popular on the scene. However, the Sega Genesis took a different path at the end of the... | 11 | 8 | [
{
"comment_id": "5816321",
"author": "PhilFan",
"timestamp": "2019-01-25T17:58:55",
"content": "What have you got against Phil Collins?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5816383",
"author": "Michael Black",
"timestamp": "2019-01-... | 1,760,374,063.735689 | ||
https://hackaday.com/2019/01/25/resurrecting-an-amiga-500/ | Resurrecting An Amiga 500+ | Lewin Day | [
"Hackaday Columns",
"Retrocomputing"
] | [
"amiga",
"Amiga 500",
"amiga 500 plus",
"retrocomputing"
] | Recently, I was lucky enough to receive a big haul of retro computer gear from a friend who was emptying out his garage. Even better, the haul was almost entirely old Amiga gear — my favorite computing platform of all time. Upon returning home, I gleefully sorted through the boxes, powering things up one by one. Amazin... | 37 | 12 | [
{
"comment_id": "5816218",
"author": "jerry",
"timestamp": "2019-01-25T15:08:57",
"content": "Damn. Now I have to see if my 500 will boot after 20 years on the floor of my computer room.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5816343",
"autho... | 1,760,374,063.68807 | ||
https://hackaday.com/2019/01/25/snes-portable-leverages-flash-cart-for-more-games/ | SNES Portable Leverages Flash Cart For More Games | Lewin Day | [
"Nintendo Hacks"
] | [
"nintendo",
"snes",
"super famicom",
"super nintendo"
] | Handheld consoles have to make a lot of design choices that their TV connected brethren don’t have to worry about. Battery life is important, as is screen visibility, and the games can’t be too bulky or unwieldy if you’re going to be carrying them around all day. [Chris] is no stranger to building handheld versions of ... | 12 | 4 | [
{
"comment_id": "5816121",
"author": "Samuel",
"timestamp": "2019-01-25T12:21:23",
"content": "“… There are some limitations – the flash cart doesn’t work properly for games using extra chips on the cartridge …”In the last months extensive firmware updates have been brought to the SD2SNES!With the h... | 1,760,374,063.786139 | ||
https://hackaday.com/2019/01/25/robot-cant-take-its-eyes-off-the-bottle/ | Robot Can’t Take Its Eyes Off The Bottle | Lewin Day | [
"Robots Hacks"
] | [
"beer",
"intel neural compute stick",
"opencv",
"robot"
] | Robots, as we currently understand them, tend to run on electricity. Only in the fantastical world of
Futurama
do robots seek out alcohol as both a source of fuel and recreation.
That is, until [Les Wright] and his beer seeking robot came along.
(YouTube, video after the break.)
A Raspberry Pi 3 provides the brains, wi... | 18 | 6 | [
{
"comment_id": "5815989",
"author": "Daren Schwenke",
"timestamp": "2019-01-25T09:17:20",
"content": "https://youtu.be/6Ul2lHj9LH4",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "5815998",
"author": "BT",
"timestamp": "2019-01-25T09:34:22",
"conten... | 1,760,374,063.944514 | ||
https://hackaday.com/2019/01/24/silent-stepper-drive-makes-a-nicer-watch-winder/ | Silent Stepper Drive Makes A Nicer Watch Winder | Lewin Day | [
"classic hacks"
] | [
"mechanical watch",
"stepper motor",
"watch",
"watch winder"
] | Mechanical watches are great in that they never need batteries, but they are simultaneously less than great in that they will lose time if not worn or otherwise regularly agitated. The ridiculous solution to this is the watch winder, which automatically rotates your mechanical watches for you, while you’re not wearing ... | 12 | 4 | [
{
"comment_id": "5815986",
"author": "Murray",
"timestamp": "2019-01-25T09:07:31",
"content": "One interesting thing about wristwatches is the amount of drift that occurs when the watch is taken off at night. This is as a result of temperature changes. When worn, the human body tends to keep the te... | 1,760,374,064.257253 | ||
https://hackaday.com/2019/01/24/can-you-trust-your-c-compiler/ | Can You Trust Your C Compiler? | Al Williams | [
"Software Development"
] | [
"c compiler",
"compcert",
"formal verification"
] | If you are writing a hello world program, you probably aren’t too concerned about how the compiler translates your source code to machine code. However, if your code runs on something that people’s lives depend on, you will want to be a bit pickier and use something like the
COMPCERT
compiler. It’s a formally verified... | 57 | 14 | [
{
"comment_id": "5815813",
"author": "Feinfinger",
"timestamp": "2019-01-25T03:36:42",
"content": "Nice hack(?)!:-Þ",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "5815814",
"author": "Alan Kilian",
"timestamp": "2019-01-25T03:36:59",
"content": "I’... | 1,760,374,064.041305 | ||
https://hackaday.com/2019/01/24/reaction-wheels-almost-control-this-unusual-drone/ | Reaction Wheels Almost Control This Unusual Drone | Dan Maloney | [
"drone hacks"
] | [
"angular momentum",
"coaxial",
"drone",
"flight control",
"inertia",
"pitch",
"reaction wheel",
"Roll",
"torque"
] | When you think about all the forces that have to be balanced to keep a drone stable, it’s a wonder that the contraptions stay in the air at all. And when the only option for producing those forces is blowing around more or less air it’s natural to start looking for other, perhaps better ways to achieve flight control.
... | 11 | 7 | [
{
"comment_id": "5815669",
"author": "Lawrence Basco",
"timestamp": "2019-01-25T01:06:16",
"content": "Query: would Hall-Effect Sensors on each wheel encode the necessary control. Come now….let’s get this done.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "5... | 1,760,374,063.892075 | ||
https://hackaday.com/2019/01/24/solar-powered-openwrt-router-for-mobile-privacy/ | Solar-Powered OpenWRT Router For Mobile Privacy | Tom Nardi | [
"Network Hacks",
"Security Hacks"
] | [
"openvpn",
"openwrt",
"privacy",
"TL-MR3020",
"tp-link"
] | Let’s not pretend we aren’t all guilty of it: at some point we’ve all connected to a public WiFi network to check our email or log into some site or service. We know the risks, we know better. But in a weak moment we can let the convenience of that public network get the better of us. What if you had a small secure rou... | 25 | 11 | [
{
"comment_id": "5815365",
"author": "Ostracus",
"timestamp": "2019-01-24T21:38:23",
"content": "“Let’s not pretend we aren’t all guilty of it: at some point we’ve all connected to a public WiFi network to check our email or log into some site or service. We know the risks, we know better. But in a ... | 1,760,374,064.110021 | ||
https://hackaday.com/2019/01/24/samy-kamkars-led-balloon-network/ | Samy Kamkar’s LED Balloon Network | Jenny List | [
"Hackaday Columns",
"LED Hacks",
"Slider"
] | [
"2018 Hackaday Superconference",
"ATtiny24",
"balloon",
"led",
"nRF24L01+"
] | Writing this in the frigid darkness of a Northern Hemisphere January evening, I have to admit to more than a little envy of Samy Kamkar and his friends. One of their summer events is a private party at a secluded campground somewhere that looks quite warm, which from here seems mighty attractive.
Samy wanted to provide... | 8 | 8 | [
{
"comment_id": "5815378",
"author": "profumple",
"timestamp": "2019-01-24T21:44:59",
"content": "Way cool walkthrough. Congrats to whole team. Came out awesome.List o links:https://www.derivative.ca/099/Downloads/h -touchdesigner (free for personal use)https://github.com/samyk/bgrid-collection... | 1,760,374,064.306824 | ||
https://hackaday.com/2019/01/24/original-xbox-gets-hardware-transplant-and-is-very-fast/ | Original Xbox Gets Hardware Transplant, And Is Very Fast | Lewin Day | [
"Xbox Hacks"
] | [
"Case mod",
"xbox"
] | The original Xbox launched way back in 2001, to much fanfare. This was Microsoft’s big first entry into the console market, with a machine packing a Pentium III CPU, and commodity PC hardware, contributing significantly to its bulk. Modding was a major part of the early Xbox scene, and as the original hardware has grow... | 54 | 11 | [
{
"comment_id": "5815138",
"author": "Mikel007",
"timestamp": "2019-01-24T19:40:46",
"content": "Most of what I read on this site is very impressive; this is not… It’s not an Xbox – it is a PC shoved inside an Xbox case. The title is misleading : if it were upgraded hardware that run and operated ... | 1,760,374,064.947791 | ||
https://hackaday.com/2019/01/24/video-putting-high-speed-pcb-design-to-the-test/ | Video: Putting High Speed PCB Design To The Test | Bil Herd | [
"Engineering",
"Featured",
"Slider",
"Tool Hacks"
] | [
"angular frequency",
"bandwidth",
"bil herd",
"Communications Signal Analyzer",
"CSA803",
"dielectric",
"EM Field",
"fast rise time",
"glass weave",
"high speed",
"High Speed Design",
"impedance",
"pcb",
"return current",
"tdr"
] | Designing circuit boards for high speed applications requires special considerations. This you already know, but what exactly do you need to do differently from common board layout? Building on where I left off discussing
impedance in 2 layer Printed Circuit Board (PCB) designs
, I wanted to start talking about high sp... | 48 | 19 | [
{
"comment_id": "5815075",
"author": "Pat",
"timestamp": "2019-01-24T18:59:34",
"content": "The “connector launch” impedance mismatch there is probably because the ground layers aren’t cleared around the center conductor on the inner layers: the pad adds way too much capacitance. Generally if you ju... | 1,760,374,064.767421 | ||
https://hackaday.com/2019/01/24/break-your-scopes-bandwidth-barrier/ | Break Your Scope’s Bandwidth Barrier | Al Williams | [
"Tool Hacks"
] | [
"Keysight",
"oscilloscope"
] | Oscilloscope bandwidth is a tricky thing. A 100 MHz scope will have a defined attenuation (70%) of a 100 MHz sine wave. That’s not really the whole picture, though, because we aren’t always measuring sine waves. A 100 MHz square wave, for example, will have sine wave components at 100 MHz, 300 MHz, and the other odd ha... | 12 | 4 | [
{
"comment_id": "5814914",
"author": "Pat",
"timestamp": "2019-01-24T17:15:36",
"content": "I kinda don’t understand the point of the video: Look at the output of the signal generator! It’s 410 MHz, sure… at +25 dBm! It’s freaking *huge* – that’s *11 V* peak to peak voltage. The scope could have 60 ... | 1,760,374,064.538863 | ||
https://hackaday.com/2019/01/24/cool-tools-a-little-filesystem-that-keeps-your-bits-on-lock/ | Cool Tools: A Little Filesystem That Keeps Your Bits On Lock | Kerry Scharfglass | [
"computer hacks",
"Hackaday Columns",
"Microcontrollers",
"Skills",
"Slider",
"Software Development"
] | [
"fault tolerance",
"filesystem",
"littleFS"
] | Filesystems for computers are not the best bet for embedded systems. Even those who know this fragment of truth still fall into the trap and pay for it later on while surrounded by the rubble that once was a functioning project. Here’s how it happens.
The project starts small, with modest storage needs. It’s just a tem... | 52 | 14 | [
{
"comment_id": "5814761",
"author": "jcwren",
"timestamp": "2019-01-24T15:10:47",
"content": "Here’s a performance comparison against SPIFFS, another very commonly used file system.https://github.com/RIOT-OS/RIOT/pull/8316",
"parent_id": null,
"depth": 1,
"replies": [
{
"c... | 1,760,374,064.862263 | ||
https://hackaday.com/2019/01/24/the-mac-that-helped-build-the-xbox-rides-again/ | The Mac That Helped Build The Xbox Rides Again | Tom Nardi | [
"computer hacks",
"Mac Hacks",
"Xbox Hacks"
] | [
"development kit",
"microsoft",
"PowerMac",
"radeon",
"xbox 360"
] | The original Xbox, released in 2001 by Microsoft, was notable for being built out of largely off-the-shelf PC components. With a custom Pentium III CPU and IDE peripherals, the console was much closer to a contemporary desktop computer than any of the dedicated game consoles which had come before it. Which of course ma... | 11 | 5 | [
{
"comment_id": "5814568",
"author": "Bowser22",
"timestamp": "2019-01-24T12:43:46",
"content": "Can we get some credits to the releasors of the image?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5814844",
"author": "theDarthFader",
"times... | 1,760,374,064.669915 | ||
https://hackaday.com/2019/01/24/running-opencl-on-a-raspberry-pi-gpu/ | Running OpenCL On A Raspberry Pi GPU | Richard Baguley | [
"Raspberry Pi"
] | [
"machine learning",
"opencl",
"raspberry pi"
] | This is an interesting development for media users and machine learning hackers: [doe300] has implemented
OpenCL on the Raspberry Pi 3 Model B+called VCFCL
That’s big news because the Pi 3+ has a Graphics Processing Unit (GPU) built into the processor that has been generally underutilized. The VideoCore IV GPU is built... | 30 | 14 | [
{
"comment_id": "5814450",
"author": "Ostracus",
"timestamp": "2019-01-24T09:47:29",
"content": "” masters these ”Those are nice to have. ;-D",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5815190",
"author": "colin",
"timestamp": "2019-01-24... | 1,760,374,064.615188 | ||
https://hackaday.com/2019/01/23/rifle-mounted-sensor-shows-what-happens-during-shot/ | Rifle-Mounted Sensor Shows What Happens During Shot | Dan Maloney | [
"Weapons Hacks"
] | [
"accelerometer",
"data logging",
"Feather",
"guns",
"LIS3DH",
"rifle",
"sensors",
"shooting"
] | People unfamiliar with shooting sports sometimes fail to realize the physicality of getting a bullet to go where you want it to. In the brief but finite amount of time that the bullet is accelerating down the barrel, the tiniest movement of the gun can produce enormous changes in its trajectory, and the farther away yo... | 81 | 18 | [
{
"comment_id": "5814266",
"author": "Joseph",
"timestamp": "2019-01-24T06:49:02",
"content": "I am going to make this asap",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5814835",
"author": "ammolytics",
"timestamp": "2019-01-24T16:10:26",
... | 1,760,374,065.062655 |
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