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https://hackaday.com/2024/12/03/torque-testing-3d-printed-screws/ | Torque Testing 3D Printed Screws | Dan Maloney | [
"Tool Hacks"
] | [
"bolt",
"destructive",
"fastener",
"hardware",
"screw",
"testing",
"torque",
"yield strength"
] | Unless you’ve got a shop with a well-stocked hardware bin, it’s a trip to the hardware store when you need a special screw. But [Sanford Prime] has a different approach: he prints his hardware, at least for non-critical applications. Just how much abuse these plastic screws can withstand was an open question, though, u... | 18 | 7 | [
{
"comment_id": "8068582",
"author": "Andrzej",
"timestamp": "2024-12-03T09:31:05",
"content": "Obligatory reminder: plastics creep under load, so a tensioned plastic “bolt” will loosen or bend given some time, even if it appears “strong enough”.",
"parent_id": null,
"depth": 1,
"replies... | 1,760,371,711.83105 | ||
https://hackaday.com/2024/12/02/from-cans-to-sheet-metal-with-ease/ | From Cans To Sheet Metal, With Ease | Jenny List | [
"Parts"
] | [
"can cutter",
"drinks cans",
"sheet metal"
] | Aluminium drinks cans make a great source of thin sheet metal which can be used for all manner of interesting projects, but it’s safe to say that retrieving a sheet of metal from a can is a hazardous process. Cut fingers and jagged edges are never far away, so [Kevin Cheung]’s work in
making an easy can cutter
is defin... | 56 | 21 | [
{
"comment_id": "8068516",
"author": "Ccecil",
"timestamp": "2024-12-03T07:15:33",
"content": "Great work. I was planning pretty much exactly the same thing but never got around to it. :)Next step…make 3d printed forms to press housings and shielding from them.Also, don’t forget they are often (al... | 1,760,371,711.358929 | ||
https://hackaday.com/2024/12/02/modular-breadboard-snaps-you-into-benchtop-tidiness/ | Modular Breadboard Snaps You Into Benchtop Tidiness | Dan Maloney | [
"Tool Hacks"
] | [
"breadboard",
"dovetail",
"modular",
"power supply",
"prototyping",
"solderless"
] | Solderless breadboards are a fantastic tool for stirring the creative juices. In a few seconds, you can go from idea to prototype without ever touching the soldering iron. Unfortunately, the downside to this is that projects tend to expand to occupy all the available space on the breadboard, and the bench surrounding t... | 27 | 9 | [
{
"comment_id": "8068481",
"author": "Eric",
"timestamp": "2024-12-03T04:27:03",
"content": "It’s not really electronic work bench until you spent 5 minutes looking for that strip of 10k resists you had in your hand a few minutes ago, and you finally find them already on the breadboard, along with t... | 1,760,371,711.901416 | ||
https://hackaday.com/2024/12/02/the-automatic-battery-charger-you-never-knew-you-needed/ | The Automatic Battery Charger You Never Knew You Needed | Jenny List | [
"Battery Hacks"
] | [
"battery charger",
"nimh",
"rp2040"
] | When we saw [Max.K]’s
automatic NiMh battery charger
float past in the Hackaday tips line, it brought to mind a charger that might be automatic in the sense that any modern microcontroller based circuit would be; one which handles all the voltages and currents automatically. The reality is far cooler than that, a singl... | 47 | 17 | [
{
"comment_id": "8068431",
"author": "Curt Thompson",
"timestamp": "2024-12-03T00:40:03",
"content": "yeah, I would absolutely buy one of those. Nice job!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8068597",
"author": "Ricardo Meechan",
"... | 1,760,371,712.037936 | ||
https://hackaday.com/2024/12/02/unique-3d-printer-has-a-print-head-with-a-twist/ | Unique 3D Printer Has A Print Head With A Twist | Dan Maloney | [
"3d Printer hacks"
] | [
"CoreXY",
"kinematics",
"polar",
"slicer",
"theta"
] | If you’re used to thinking about 3D printing in Cartesian terms, prepare your brain for a bit of a twist with
[Joshua Bird]’s 4-axis 3D printer
that’s not quite like anything we’ve ever seen before.
The printer uses a rotary platform as a build plate, and has a linear rail and lead screw just outside the rim of the pla... | 27 | 13 | [
{
"comment_id": "8068394",
"author": "Thovthe",
"timestamp": "2024-12-02T22:08:18",
"content": "The real difficulty with these usually is in the slicing. As far as I know there are no open source (or even inexpensive) slicers that do >4 axis. Maybe one can hack something together with G-Code bendi... | 1,760,371,711.689254 | ||
https://hackaday.com/2024/12/02/a-free-speed-boost-for-your-pi-5/ | A Free Speed Boost For Your Pi 5 | Jenny List | [
"Raspberry Pi"
] | [
"dram",
"Pi 5",
"Raspberry Pi 5",
"upgrade"
] | The world of the overclocker contains many arcane tweaks to squeeze the last drops of performance from a computer, many of which require expert knowledge to understand. Happily for Raspberry Pi 5 owners the Pi engineers have come up with a set of tweaks you don’t have to be an overclocker to benefit from,
working on th... | 25 | 6 | [
{
"comment_id": "8068379",
"author": "DerAxeman",
"timestamp": "2024-12-02T21:06:05",
"content": "Having written microcode for RAM, it really pays to know your hardware. There are a lot of clever people who come up with tricks that still comply with timings.",
"parent_id": null,
"depth": 1,
... | 1,760,371,711.625547 | ||
https://hackaday.com/2024/12/02/a-brief-history-of-calculator-watches/ | A Brief History Of Calculator Watches | Al Williams | [
"Hackaday Columns",
"History",
"Retrocomputing",
"Slider"
] | [
"calculator watch",
"retrotech"
] | When humans counted on their fingers, everyone had a state-of-the-art (at the time) calculator at all times. But as we got smarter about calculation, we missed that convenience. When slide rules were king, techies were known to carry them around like swords swinging from their belts. These were replaced with electronic... | 33 | 19 | [
{
"comment_id": "8068321",
"author": "rclark",
"timestamp": "2024-12-02T18:14:38",
"content": "I had a Casio with raised buttons in the 80s… Was the ‘cool’ thing in those day for us geeks. Plus the calculator in the shirt pocket or on a belt loop … Still like it better than typing on a virtual ca... | 1,760,371,711.563334 | ||
https://hackaday.com/2024/12/02/small-feathers-big-effects-reducing-stall-speeds-with-strips-of-plastic/ | Small Feathers, Big Effects: Reducing Stall Speeds With Strips Of Plastic | Danie Conradie | [
"drone hacks"
] | [
"aerodynamics",
"aircraft",
"birds",
"stall"
] | Birds have long been our inspiration for flight, and researchers at Princeton University have found a new trick in their arsenal:
covert feathers
. These small feathers on top of birds’ wings lay flat during normal flight but flare up in turbulence during landing. By attaching flexible plastic strips – “covert flaps” –... | 19 | 8 | [
{
"comment_id": "8068299",
"author": "Ostracus",
"timestamp": "2024-12-02T17:03:11",
"content": "Maintenance will love it.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8068303",
"author": "anathae",
"timestamp": "2024-12-02T17:13:49",
... | 1,760,371,711.955773 | ||
https://hackaday.com/2024/12/02/exploring-the-sounds-and-sights-of-alien-worlds/ | Exploring The Sounds And Sights Of Alien Worlds | Maya Posch | [
"Featured",
"Science",
"Slider",
"Space"
] | [
"extraterrestrial",
"rovers",
"science",
"sounds",
"space"
] | The 20th century saw humankind’s first careful steps outside of the biosphere in which our species has evolved. Whereas before humans had experienced the bitter cold of high altitudes, the crushing pressures in Earth’s oceans, as well as the various soundscapes and vistas offered in Earth’s biosphere, beyond Earth’s at... | 14 | 6 | [
{
"comment_id": "8068273",
"author": "Alan",
"timestamp": "2024-12-02T15:47:55",
"content": "Huygens probe from ESA recorded sound on Titan in 2004",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8068274",
"author": "The Commenter Formerly Known As Ren",
... | 1,760,371,711.48582 | ||
https://hackaday.com/2024/12/02/building-experience-and-circuits-for-lithium-capacitors/ | Building Experience And Circuits For Lithium Capacitors | Bryan Cockfield | [
"Battery Hacks"
] | [
"battery",
"capacitor",
"charging protection",
"embedded",
"energy storage",
"solar",
"super capacitor",
"supercapacitor",
"voltage regulator"
] | For the cautious, a good piece of advice is to always wait to buy a new product until after the first model year, whether its cars or consumer electronics or any other major purchase. This gives the manufacturer a year to iron out the kinks and get everything ship shape the second time around. But not everyone is willi... | 22 | 10 | [
{
"comment_id": "8068241",
"author": "Conrad Farnsworth",
"timestamp": "2024-12-02T12:54:06",
"content": "I had a product I was building that required backup power for some time to ensure the product was safe. The caveat was we couldn’t have any sort of stored energy after 20 minutes or so. I did lo... | 1,760,371,711.424702 | ||
https://hackaday.com/2024/12/02/esp32-powers-diy-smart-energy-meter/ | ESP32 Powers DIY Smart Energy Meter | Lewin Day | [
"home hacks"
] | [
"energy",
"home-assistant",
"power meter"
] | Energy is expensive these days. There’s no getting around it. If, like [Giovanni], you want to keep better track of your usage,
you might find value in his DIY energy meter build.
[Giovanni] built his energy meter to monitor energy usage in his whole home. An ESP32 serves as the heart of this build. It’s hooked up with... | 20 | 9 | [
{
"comment_id": "8068201",
"author": "benj111",
"timestamp": "2024-12-02T09:43:17",
"content": "If you’re missing it, I’m missing it too.Incase it’s silently updated, the title is currently“Balancing Balls With A Touchpad”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comm... | 1,760,371,712.09458 | ||
https://hackaday.com/2024/12/01/stripping-gopros-to-the-bone-for-model-rocketry/ | Stripping GoPros To The Bone For Model Rocketry | Danie Conradie | [
"digital cameras hacks",
"News"
] | [
"bps.space",
"GoPro",
"joe barnard",
"model rocketry"
] | The small size of action cameras has made them a great solution for getting high-quality experimental footage where other cameras don’t fit. GoPros are [Joe Barnard]’s camera of choice for his increasingly advanced rockets, but even the smallest models don’t quite fit where he needs them. They also overheat quickly, so... | 11 | 2 | [
{
"comment_id": "8068190",
"author": "jpa",
"timestamp": "2024-12-02T08:49:25",
"content": "I assume the limiting factor is the weight of the camera. The best tradeoff in terms of weight vs. passive cooling capacity is probably a relatively thin and wide heatsink. But on the other hand, adding a tin... | 1,760,371,712.377273 | ||
https://hackaday.com/2024/12/01/electrostatic-puck-making-an-electret/ | Electrostatic Puck: Making An Electret | Danie Conradie | [
"High Voltage"
] | [
"electret",
"Plasma Channel",
"static electricity"
] | You might have heard of electrets being used in microphones, but do you know what they are? Electrets produce a semi-permanent static electric field, similar to how a magnet produces a magnetic field. The ones in microphones are very small, but in the video after the break [Jay Bowles] from
Plasma Channel
makes a big e... | 27 | 13 | [
{
"comment_id": "8068148",
"author": "WestfW",
"timestamp": "2024-12-02T03:56:48",
"content": "Polyethylene makes good electrets?Does that mean that hot-melt glue could be used?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8068153",
"author": "Kevin Pete... | 1,760,371,712.592365 | ||
https://hackaday.com/2024/12/01/when-transistor-count-mattered/ | When Transistor Count Mattered | Jenny List | [
"classic hacks"
] | [
"transistor",
"transistor radio",
"transistors"
] | Many Hackaday readers have an interest in retro technology, but we are not the only group who scour the flea markets. Alongside us are the collectors, whose interest is as much cultural as it is technological, and who seek to preserve and amass as many interesting specimens as they can. From this world comes [colectorn... | 29 | 16 | [
{
"comment_id": "8068124",
"author": "Frankens43",
"timestamp": "2024-12-02T02:00:10",
"content": "Ah, thr good old days.. you could make an AM radio with a simple germanium diode and a length of wire.. place a few coils and a single transistor.. and you had a radio you could hear without a crystal ... | 1,760,371,712.529567 | ||
https://hackaday.com/2024/12/01/creating-a-signature-wood-joint/ | Creating A Signature Wood Joint | Navarre Bartz | [
"Tool Hacks"
] | [
"dowel",
"furniture",
"joinery",
"joint",
"Laura Kampf",
"wood joinery",
"woodworking"
] | We really love when makers make their construction techniques evident in an aesthetically-pleasing way, and [Laura Kampf] has created a clever joint
that reveals how a piece is made
.
[Kampf] is a big fan of using her domino joiner, which is similar to biscuits or dowel joinery, but she didn’t love how it hid the const... | 25 | 9 | [
{
"comment_id": "8068068",
"author": "Hirudinea",
"timestamp": "2024-12-01T21:41:33",
"content": "Neat. Also what if she replaced the smaller dowel with a brass nut and screw? That way you can disassemble and reassemble without having to drill out the dowel. Nice to see a woman carpenter too, good t... | 1,760,371,712.709471 | ||
https://hackaday.com/2024/12/01/tailwheel-trainer-go-cart-to-avoid-wrecked-planes/ | Tailwheel Trainer Go-Cart To Avoid Wrecked Planes | Danie Conradie | [
"Transportation Hacks"
] | [
"aviation",
"cart",
"driving simulator"
] | Taildraggers remain a popular configuration for small aircraft, but they come with a significant risk during ground handling: ground loops. If the tail gets too far off course, it can swing around completely, often damaging or destroying aircraft if a wing hits the ground. Avoiding ground loops requires good rudder and... | 16 | 12 | [
{
"comment_id": "8068036",
"author": "Hirudinea",
"timestamp": "2024-12-01T18:13:07",
"content": "Not being a pilot I never thought of this before but once you think about it that is a damn good idea.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8068059",
... | 1,760,371,712.642762 | ||
https://hackaday.com/2024/12/01/8-bit-computers-crunch-advanced-scientific-computations/ | 8-Bit Computers Crunch Advanced Scientific Computations | Bryan Cockfield | [
"Science"
] | [
"8 bit",
"basic",
"commodore",
"model",
"quantum",
"quantum computing",
"retrocomputing",
"science",
"simulation"
] | Although largely relegated to retrocomputing enthusiasts and embedded systems or microcontrollers now, there was a time when there were no other computers available other than those with 8-bit processors. The late 70s and early 80s would have seen computers with processors like the Motorola 6800 or Intel 8080 as the to... | 37 | 11 | [
{
"comment_id": "8067981",
"author": "Astro Jetson",
"timestamp": "2024-12-01T15:29:22",
"content": "I do robotics with students. There was a need for the basic trig functions but the programming didn’t support it. So I broke out routines I had from my PIC days and we used them. Turns out that 2... | 1,760,371,712.466683 | ||
https://hackaday.com/2024/12/01/upgrading-the-m4-mac-mini-with-more-storage/ | Upgrading The M4 Mac Mini With More Storage | Navarre Bartz | [
"Mac Hacks"
] | [
"apple",
"Apple repair",
"Apple Silicon",
"arm",
"M Series",
"mac mini"
] | Apple’s in-house chips have some impressive specs, but user serviceability is something Apple left behind for consumer machines around a decade ago. Repair legend [dosdude1] shows us how the new M4 Mac mini can get
a sizeable storage upgrade
without paying the Apple tax.
The Mac mini is Apple’s least expensive machine,... | 17 | 6 | [
{
"comment_id": "8068002",
"author": "Dan",
"timestamp": "2024-12-01T16:26:46",
"content": "It’s criminal that they intentionally wall users in on a device with easily enough physical space. I wouldn’t be surprised if Apple start using serialization to prevent this from being offered as a service.",... | 1,760,371,712.766 | ||
https://hackaday.com/2024/12/01/pushing-802-11ah-to-the-extreme-with-drones/ | Pushing 802.11ah To The Extreme With Drones | Bryan Cockfield | [
"Radio Hacks"
] | [
"802.11ah",
"dragon bridge",
"dragonos",
"drone",
"drone bridge",
"HaLow",
"radio",
"wi-fi",
"wifi"
] | It might come as a surprise to some that IEEE, the Institute for Electrical and Electronics Engineers, does more than send out mailers asking people to renew their memberships. In fact, they also maintain various electrical standards across a wide range of disciplines, but perhaps the one most of us interact with the m... | 20 | 9 | [
{
"comment_id": "8067954",
"author": "Jethro",
"timestamp": "2024-12-01T12:56:22",
"content": "How do you propose to prevent wifi spectrum from turning into a version of 11 meters ? or 14.3 on HF.Is there any deconfliction strategy ?",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,371,712.868167 | ||
https://hackaday.com/2024/11/30/making-a-stool-from-clay/ | Making A Stool From Clay | Navarre Bartz | [
"Art",
"home hacks"
] | [
"art",
"chair",
"clay",
"furniture",
"kiln",
"stool"
] | We’ve seen furniture made out of all sorts of interesting materials here, but clay certainly isn’t the first one that comes to mind. [Mia Mueller] is expanding our horizons with
this clay stool
she made for her garden.
Starting with an out-of-budget inspiration piece, [Mueller] put her own spin on a ceramic stool that ... | 8 | 7 | [
{
"comment_id": "8067924",
"author": "Jink",
"timestamp": "2024-12-01T07:49:54",
"content": "I’d be super interested in an article on the history and uses of ceramics in high tech applications, such as the airtight glass-ceramic seal for 1940’s vacuum tubes, and the high budget R&D involved in makin... | 1,760,371,712.812311 | ||
https://hackaday.com/2024/11/30/arduino-vga-the-old-fashioned-way/ | Arduino VGA, The Old Fashioned Way | Jenny List | [
"Arduino Hacks"
] | [
"arduino mega",
"isa",
"vga"
] | Making a microcontroller speak to a VGA monitor has been a consistent project in our sphere for years, doing the job for which an IBM PC of yore required a plug-in ISA card. Couldn’t a microcontroller talk to a VGA card too? Of course it can, and [0xmarcin] is here
to show how it can be done with an Arduino Mega
.
The ... | 10 | 7 | [
{
"comment_id": "8067882",
"author": "Joshua",
"timestamp": "2024-12-01T03:39:42",
"content": "“The Arduino is fast enough to support the ISA bus speed, but the card also needs the PC’s clock line to operate, and it only supports three modes: 80 x 25, 16 colour text, 320 x 200, 256 colour graphics,... | 1,760,371,712.914066 | ||
https://hackaday.com/2024/11/30/uncle-sam-wants-you-to-recover-energy-materials-from-wastewater/ | Uncle Sam Wants You To Recover Energy Materials From Wastewater | Navarre Bartz | [
"green hacks",
"News"
] | [
"Advanced Research Projects Agency - Energy",
"ARPA-E",
"grants",
"material recovery",
"material separation",
"mining",
"US Department of Energy",
"US DOE",
"wastewater treatment"
] | The U.S. Department of Energy’s (DOE) Advanced Research Projects Agency-Energy (ARPA-E) was founded to support moonshot projects in the realm of energy, with a portfolio that ranges from the edge of current capabilities to some pretty far out stuff. We’re not sure exactly where their newest “Notice of Funding Opportuni... | 22 | 7 | [
{
"comment_id": "8067840",
"author": "HaHa",
"timestamp": "2024-12-01T00:55:10",
"content": "My dog recovers energy materials from the cat’s litter box.Then he gives everybody sloppy dog kisses.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8067886",
... | 1,760,371,713.104341 | ||
https://hackaday.com/2024/11/30/its-like-lightscribe-but-for-floppies/ | It’s Like LightScribe, But For Floppies! | Jenny List | [
"Software Hacks"
] | [
"disk image",
"floppy disk",
"lightscribe"
] | Back when CD-Rs were the thing, there were CD burner drives which would etch images in the unoccupied areas of a CD-R. These so-called LightScribe drives were a novelty of which most users soon tired, but they’re what’s brought to our mind by [dbalsom]’s project. It’s called PNG2disk, and
it does the same job as LightS... | 18 | 7 | [
{
"comment_id": "8067784",
"author": "GloriousCow",
"timestamp": "2024-11-30T21:23:32",
"content": "Thanks for covering my silly little utility.A similar project was covered on Hackaday a few years ago, but only did black and white images:https://hackaday.com/2021/02/19/writing-pretty-flux-patterns-... | 1,760,371,713.160271 | ||
https://hackaday.com/2024/11/30/saving-a-samsung-tv-from-the-dreaded-boot-loop/ | Saving A Samsung TV From The Dreaded Boot Loop | Lewin Day | [
"Repair Hacks",
"Tech Hacks"
] | [
"firmware",
"samsung",
"tv"
] | [eigma] had a difficult problem. After pulling a TV out of the trash and bringing it home, it turned out it was suffering from a troubling boot loop issue that basically made it useless. As so many of us do, they decided to fix it…
which ended up being a far bigger task than initially expected.
The TV in question was a... | 39 | 15 | [
{
"comment_id": "8067736",
"author": "craig",
"timestamp": "2024-11-30T19:01:51",
"content": "“which ended up being a far bigger task than initially expected.”respect…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8067749",
"author": "Thinkerer",
"tim... | 1,760,371,713.423161 | ||
https://hackaday.com/2024/11/30/thanks-for-hacking-2/ | Thanks For Hacking | Elliot Williams | [
"Hackaday Columns",
"Slider"
] | [
"newsletter",
"thanks",
"thanksgiving"
] | It’s that time of year again, when the turkey roasts and we think of the important things that we’re thankful for. Here at Hackaday, we’re simply thankful for all of you out there. The readers who make Hackaday worth writing for, and the hackers out there who give us something to write about.
It’s no exaggeration to sa... | 16 | 6 | [
{
"comment_id": "8067673",
"author": "BT",
"timestamp": "2024-11-30T15:28:54",
"content": "The top pic needs an accompanying youtube video!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8067679",
"author": "Pat",
"timestamp": "2024-11-30T15:44:10",
... | 1,760,371,713.296428 | ||
https://hackaday.com/2024/11/30/the-many-reasons-for-putting-microphones-in-rainforests/ | The Many Reasons For Putting Microphones In Rainforests | Maya Posch | [
"green hacks"
] | [
"Bioacoustics",
"biomonitoring",
"rainforest"
] | If a tree falls in a forest with nobody around, does it make a noise? In the case of the rainforests equipped with the Rainforest Connection’s Guardian system someone most assuredly will.
Rainforest Connection’s Guardian system up close, with microphone visible. (Credit: RFCx)
Originally created by the people behind th... | 8 | 5 | [
{
"comment_id": "8067686",
"author": "helge",
"timestamp": "2024-11-30T16:17:51",
"content": "That Guardian Device sure hits multiple spots. Building something that includes serious PV, energy harvesting or a battery that allows it to run for years AND survives the temperature, pressure cycles and h... | 1,760,371,713.344981 | ||
https://hackaday.com/2024/11/30/building-a-miniature-rainbow-sand-table/ | Building A Miniature Rainbow Sand Table | Lewin Day | [
"Art"
] | [
"sand",
"sand table"
] | Sure is coarse and rough and irritating, and it gets everywhere. But it can also be beautiful — drag a small ball through it in a controlled manner you can make some really pretty patterns.
That’s precisely what this compact build from [Printerforge] does.
The build relies on an ESP32 as the brains of the operation. It... | 10 | 1 | [
{
"comment_id": "8067647",
"author": "H Hack",
"timestamp": "2024-11-30T13:33:48",
"content": "Nice. I wonder if anyone has designed a mechanism to lift and move the ball? That’d give a whole new range of art it could generate.You’d probably need two separate motors and a arm above the ball to accom... | 1,760,371,713.241886 | ||
https://hackaday.com/2024/11/29/modernizing-an-apple-ipod-or-a-modern-day-ship-of-theseus/ | Modernizing An Apple IPod, Or: A Modern-Day Ship Of Theseus | Maya Posch | [
"ipod hacks"
] | [
"5thGenIpod",
"apple iPod",
"modernization"
] | Back in the day the Apple iPod was the personal music player (PMP) to get even if mostly because everyone and their dogs had one. These days most people just use their smartphone as a PMP, but what if you were to take, say, a 5th generation iPod and modernized it? That was the basic idea that [Zac Builds] picked up and... | 24 | 7 | [
{
"comment_id": "8067543",
"author": "LordNothing",
"timestamp": "2024-11-30T06:25:02",
"content": "its nice that my 5th gen still works fine, only having replaced a screen and a battery. wanted to do the storage upgrade, but my inability to read the tiny screen in my old age has put a damper on tha... | 1,760,371,713.597554 | ||
https://hackaday.com/2024/11/29/hacking-trees-to-bring-back-the-american-chestnut/ | Hacking Trees To Bring Back The American Chestnut | Navarre Bartz | [
"green hacks",
"Science"
] | [
"American Chestnut",
"arbology",
"bioengineering",
"biology",
"biotech",
"botany",
"chestnut",
"Christmas carol",
"genomics",
"transgenic",
"tree"
] | “Chestnuts Roasting on an Open Fire” is playing on the radio now in the Northern Hemisphere which begs the question, “What happened to the American chestnut?” Would you be surprised to hear there’s a group dedicated to
bringing it back from “functional extinction?”
[via
Inhabitat
]
Between logging and the introduction ... | 36 | 6 | [
{
"comment_id": "8067517",
"author": "paulvdh",
"timestamp": "2024-11-30T04:56:05",
"content": "As far as I know we’ve got plenty of those things here in the Netherlands, and they are being treated as an invasive spieces. I’ve seen a few and they’re not very big nor impressive. I don’t know whether ... | 1,760,371,713.540409 | ||
https://hackaday.com/2024/11/29/swapping-batteries-has-never-looked-this-cool/ | Swapping Batteries Has Never Looked This Cool | Donald Papp | [
"Battery Hacks"
] | [
"18650",
"3d printed",
"battery",
"cool",
"linear slide"
] | We don’t know much more than what we see with
[Kounotori_DIY]’s battery loader design
(video embedded below) but it just looks
so cool
we had to share. Watch it in action, it’ll explain itself.
Before 3D printers made it onto hobbyist workbenches, prototyping something like this would have been much more work.
[Kounoto... | 39 | 7 | [
{
"comment_id": "8067454",
"author": "Frank Peters",
"timestamp": "2024-11-30T00:07:27",
"content": "I’m gonna be that guy:This is absolutely amazing, but perhaps I need a profession where I have to swap batteries that often!On the bright side, I miss old flashlight battery compartments with screw c... | 1,760,371,713.681226 | ||
https://hackaday.com/2024/11/29/simple-pen-plotter-rolls-on-the-table/ | Simple Pen Plotter Rolls On The Table | Lewin Day | [
"cnc hacks"
] | [
"cnc",
"plotter"
] | Pen plotters are popular builds amongst DIY CNC enthusiasts. They’re a great way to learn the fundamentals of motion control and make something useful along the way. In that vein,
[Maker101] has created a neat barebones plotter for tabletop use.
The basic design relies on familiar components. It uses a pair of MGN15 li... | 6 | 2 | [
{
"comment_id": "8067456",
"author": "The Commenter Formerly Known as Ren",
"timestamp": "2024-11-30T00:11:26",
"content": "What keeps the paper from moving when the pen is dragging on it?I’ve wanted a plotter for a long time, just didn’t find one for the right price.",
"parent_id": null,
"d... | 1,760,371,713.469095 | ||
https://hackaday.com/2024/11/29/building-a-generator-that-runs-off-hose-power/ | Building A Generator That Runs Off Hose Power | Lewin Day | [
"Tech Hacks"
] | [
"generator",
"hose",
"turbine",
"water wheel"
] | [Paul Junkin] bought a curious product off the Internet. It was supposed to generate electricity when hooked up to a running hose. Only, it didn’t do a very good job. His solution was straightforward—
he built his own hose-powered generator that actually worked.
The design uses a turbine hooked up to a small motor acti... | 68 | 23 | [
{
"comment_id": "8067343",
"author": "Dude",
"timestamp": "2024-11-29T18:20:55",
"content": "This is the first step for making your own hydropower plant. A typical water hose has about 40 – 80 PSI of pressure, which is something like 100-200 ft of “head” or elevation. If you have a stream uphill and... | 1,760,371,713.803845 | ||
https://hackaday.com/2024/11/29/hackaday-podcast-episode-298-forbidden-usb-c-a-laser-glow-o-scope-and-the-epoch-super-cassette-vision/ | Hackaday Podcast Episode 298: Forbidden USB-C, A Laser Glow-o-Scope, And The Epoch Super Cassette Vision | Jenny List | [
"Hackaday Columns",
"Podcasts"
] | [
"Hackaday Podcast"
] | This week’s Hackaday podcast has a European feel, as Elliot Williams is joined by Jenny List for a look at the week’s happenings in the world of cool hardware hacks. Starting with the week’s news, those Redbox vending machines continue to capture the attention of hackers everywhere, and in the race to snag one before t... | 5 | 4 | [
{
"comment_id": "8067810",
"author": "Michael C",
"timestamp": "2024-11-30T22:59:58",
"content": "Really great this week!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8068086",
"author": "PuceBaboon",
"timestamp": "2024-12-01T22:29:49",
"content"... | 1,760,371,713.943237 | ||
https://hackaday.com/2024/11/29/fully-submerge-this-modernized-ph-sensor/ | Fully Submerge This Modernized PH Sensor | Bryan Cockfield | [
"chemistry hacks",
"Microcontrollers"
] | [
"ESP32",
"instrument",
"meter",
"pH",
"sensor"
] | There’s a school of thought that says you shouldn’t mess around with a solution that’s already working, but that’s never seemed to stop anyone in this community. When [Skye] was looking at the current state of connected pH meters
they realized there was incredible room for improvement
.
Called the Nectar Monitor, this ... | 18 | 8 | [
{
"comment_id": "8067281",
"author": "Jan Grewe",
"timestamp": "2024-11-29T15:14:08",
"content": "Uhm, i think there’s have quite a bit of a misunderstanding… pH/EC probes are ALWAYS submerged, because otherwise they can’t measure anything, and the electrical isolation has nothing to do with being s... | 1,760,371,713.860245 | ||
https://hackaday.com/2024/11/29/low-profile-travel-keyboard-is-mostly-3d-printed/ | Low-Profile Travel Keyboard Is Mostly 3D Printed | Lewin Day | [
"Peripherals Hacks"
] | [
"keyboard",
"micro keyboard"
] | If you’ve got a nice mechanical keyboard, typing on anything else can often become an unpleasant experience. Unfortunately, full-sized versions are bulky and not ideal when you’re travelling or for certain portable applications.
[Applepie1928] decided to create a small travel keyboard to solve these problems.
Meet the ... | 9 | 6 | [
{
"comment_id": "8067227",
"author": "Paul",
"timestamp": "2024-11-29T13:08:49",
"content": "“like those “keyboards” at the bowling alley.” is oddly specific.Maybe I’m of a certain age and lived in certain countries, and have not bowled in about a decade, but I’ve never seen a keyboard at a bowling... | 1,760,371,713.99583 | ||
https://hackaday.com/2024/11/29/gps-enabled-pumpkin-spice-sprayer-knows-when-its-psl-season/ | GPS Enabled Pumpkin Spice Sprayer Knows When It’s PSL Season | Drew Littrell | [
"3d Printer hacks"
] | [
"3d print",
"aerosol",
"arduino",
"pumpkins"
] | Pumpkin spice, also known as allspice with better marketing, has found its way into a seemingly endless amount of products over the years. It goes beyond the obvious foodstuffs of pies and cakes; because there are plenty of candles, deodorants, and air fresheners ready to add a little more spice to your world. One such... | 9 | 6 | [
{
"comment_id": "8067200",
"author": "shinsukke",
"timestamp": "2024-11-29T10:03:53",
"content": "I have never been so confused by the purpose of an electronics project.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8067255",
"author": "James",
... | 1,760,371,714.278502 | ||
https://hackaday.com/2024/11/28/ultra-wide-gaming-handheld-channels-the-nintendo-ds/ | Ultra-Wide Gaming Handheld Channels The Nintendo DS | Lewin Day | [
"News"
] | [
"laptop",
"lenovo",
"TouchPad"
] | “The Nintendo DS isn’t wide enough!” said nobody, ever. Most players found Nintendo’s form factor to be perfectly acceptable for gaming on the go, after all. Still, that doesn’t mean a handheld gaming rig with a more…
cinematic
aspect ratio couldn’t be fun!
[Marcin Plaza] built just that, with great results.
The initia... | 17 | 4 | [
{
"comment_id": "8067176",
"author": "Miles",
"timestamp": "2024-11-29T06:19:37",
"content": "There are eDP to DSI starting to become available (The Legion Go for example uses a tablet screen on ‘laptop’ CPU hardware)https://www.reddit.com/r/AskElectronics/comments/1e181sm/what_ic_to_convert_edp_to_... | 1,760,371,714.061537 | ||
https://hackaday.com/2024/11/28/us-is-getting-its-first-onshore-wave-power-plant/ | US Is Getting Its First Onshore Wave Power Plant | Navarre Bartz | [
"green hacks",
"News"
] | [
"coastal",
"energy",
"maritime",
"ocean",
"onshore",
"renewable energy",
"tidal",
"tidal power"
] | Renewables let you have a more diverse set of energy inputs so you aren’t putting all your generation eggs in one basket. One type of renewable that doesn’t see a lot of love, despite 80% of the world’s population living within 100 km (~60 mi) of a coastline, is
harnessing the energy of the tides
. [via
Electrek
]
“The... | 60 | 15 | [
{
"comment_id": "8067149",
"author": "SRSLY??",
"timestamp": "2024-11-29T03:07:09",
"content": "California should make a goal to scale a decentralized network of these across the state along side desalinization plants to become water independent.",
"parent_id": null,
"depth": 1,
"replies... | 1,760,371,714.37979 | ||
https://hackaday.com/2024/11/28/ufo-50-inspired-lx-system-looks-straight-out-of-a-video-game/ | UFO 50 Inspired LX System Looks Straight Out Of A Video Game | Drew Littrell | [
"Games"
] | [
"3d printed",
"3D printed case",
"mini pc",
"video game console"
] | They simply don’t make them like they used to, and in the case of this retro LX system build, they only make what never existed in the first place. Earlier this year the long awaited video game UFO 50 released to widespread critical acclaim. The conceit of the game is an interactive anthology of a faux 1980’s game cons... | 14 | 3 | [
{
"comment_id": "8067128",
"author": "Miles",
"timestamp": "2024-11-29T00:13:17",
"content": "I wonder whether switching the gender of the XLR would be wise, a hot pin isn’t a great idea in so open of a connector.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id"... | 1,760,371,714.430234 | ||
https://hackaday.com/2024/11/28/minichord-wants-to-help-you-find-rad-chord-progressions/ | Minichord Wants To Help You Find Rad Chord Progressions | Lewin Day | [
"Musical Hacks"
] | [
"minichord",
"music",
"sound",
"synth"
] | If you’re good at music theory, you can probably find all the chords and progressions you need just by using your fingers and a suitable instrument. For a lot of musicians, though, remembering huge banks of chords can be difficult, and experimenting with combinations can quickly become tedious and tiring.
Enter the min... | 8 | 4 | [
{
"comment_id": "8067168",
"author": "Taper",
"timestamp": "2024-11-29T06:00:01",
"content": "Neat! This kind of chording synth is always cool to see. I have a similar device, Johan Berglund’s T.Chordstrum — a less polished thing, based around a Teensy 3.2.",
"parent_id": null,
"depth": 1,... | 1,760,371,714.530253 | ||
https://hackaday.com/2024/11/26/the-junk-machine-prints-corrupted-advertising-on-demand/ | The Junk MachinePrints Corrupted Advertising On Demand | Donald Papp | [
"Art",
"Artificial Intelligence"
] | [
"advertising",
"ai",
"embedded",
"Nvidia Jetson",
"printer",
"sdxl",
"stable diffusion"
] | [ClownVamp]’s art project
The Junk Machine
is an interactive and eye-catching machine that, on demand, prints out an equally eye-catching and unique yet completely meaningless (one may even say
corrupted
) AI-generated advertisement for nothing in particular.
The machine is an artistic statement on how powerful softwar... | 13 | 8 | [
{
"comment_id": "8066279",
"author": "Jan",
"timestamp": "2024-11-26T12:26:06",
"content": "You dont need AI for that.Every other section on Facebook has that.Just copy and print out.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8066319",
"author":... | 1,760,371,714.484316 | ||
https://hackaday.com/2024/11/26/electric-motors-run-continuously-at-near-peak-power/ | Electric Motors Run Continuously At Near-Peak Power | Bryan Cockfield | [
"Transportation Hacks"
] | [
"continuous power",
"Electric motor",
"mahle",
"peak power",
"power output",
"power rating",
"torque",
"tractor trailer",
"transportation",
"truck"
] | For a lot of electrical and mechanical machines, there are nominal and peak ratings for energy output or input. If you’re in marketing or advertising, you’ll typically look at the peak rating and move on with your day. But engineers need to know that most things can only operate long term at a fraction of this peak rat... | 35 | 7 | [
{
"comment_id": "8066250",
"author": "Andrzej",
"timestamp": "2024-11-26T10:01:29",
"content": "So if it can run continuously at X watts, why can’t you push it a little further for a short period? Is the peak power limited by other (mechanical?) factors?",
"parent_id": null,
"depth": 1,
... | 1,760,371,714.610417 | ||
https://hackaday.com/2024/11/25/building-a-pi-powered-led-chess-board/ | Building A Pi-Powered LED Chess Board | Lewin Day | [
"LED Hacks"
] | [
"chess",
"chess board",
"led",
"raspberry pi"
] | If you live near Central Park or some other local chess hub, you’re likely never short of opponents for a good game. If you find yourself looking for a computer opponent, or you just prefer playing online,
you might like this LED chessboard from [DIY Machines] instead.
At heart, it’s basically a regular chessboard with... | 12 | 5 | [
{
"comment_id": "8066211",
"author": "A",
"timestamp": "2024-11-26T08:16:38",
"content": "Next step – autodetection of where chess pieces are on the board. Are there any (very) cheap solution for such thing, tiny rfid readers?",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,371,714.662356 | ||
https://hackaday.com/2024/11/25/solar-orbiter-takes-amazing-solar-pictures/ | Solar Orbiter Takes Amazing Solar Pictures | Al Williams | [
"News",
"Space"
] | [
"ESA",
"solar orbiter",
"sun"
] | There’s an old joke that they want to send an exploratory mission to the sun, but to save money, they are going at night. The European Space Agency’s
Solar Orbiter
has gotten as close as anything we’ve sent to study our star on purpose, and the pictures it took last year were from less than 46 million miles away. That ... | 9 | 3 | [
{
"comment_id": "8066159",
"author": "David",
"timestamp": "2024-11-26T03:46:08",
"content": "Is it just me, or does the sun look like it might have skin cancer?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8066164",
"author": "Charles Springer",
... | 1,760,371,714.714313 | ||
https://hackaday.com/2024/11/25/an-over-engineered-basement-monitor/ | An Over-Engineered Basement Monitor | Lewin Day | [
"Misc Hacks"
] | [
"basement",
"bme280",
"grafana",
"sump pump",
"water",
"water level",
"water monitor"
] | [Stephen] has a basement that depends on a sump pump. What that means is if the pump fails or the power goes out, the basement floods—which is rather undesirable. Not wanting to rely on a single point of failure, [Stephen] decided to
build a monitor for the basement situation
, which quickly spiralled to a greater degr... | 10 | 6 | [
{
"comment_id": "8066095",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2024-11-26T00:14:24",
"content": "” [Stephen] can now track all the vital signs of his basement remotely, ”Radon?Carbon monoxide?Sewer gas?Rodents?",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,371,714.762299 | ||
https://hackaday.com/2024/11/25/e-ink-screen-combined-with-analog-dial-is-epic-win/ | E-Ink Screen Combined With Analog Dial Is Epic Win | Lewin Day | [
"Misc Hacks"
] | [
"analog dial",
"e-ink",
"e-ink display",
"home-assistant",
"smart home"
] | Analog dials used to be a pretty common way of displaying information on test equipment and in industrial applications. They fell out of favor as more advanced display technologies became cheaper. However,
if you combine an analog dial with a modern e-ink display
, it turns out you get something truly fantastic indeed.... | 52 | 12 | [
{
"comment_id": "8066041",
"author": "threeve",
"timestamp": "2024-11-25T21:18:56",
"content": "Every now and then, something will show up here that makes you say, “why didn’t I think of that?”This is one of those times.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comm... | 1,760,371,714.852317 | ||
https://hackaday.com/2024/11/25/square-roots-1800s-style-no-the-other-1800s/ | Square Roots 1800s Style — No, The Other 1800s | Al Williams | [
"Misc Hacks"
] | [
"math",
"square root"
] | [MindYourDecisions] presents a
Babylonian tablet
dating back to around 1800 BC that shows that the hypotenuse of a unit square is the square root of two or 1.41421. How did they know that? We don’t know for sure how they computed it, but experts think it is the same as the ancient Greek method written down by Hero. It ... | 44 | 17 | [
{
"comment_id": "8066016",
"author": "George",
"timestamp": "2024-11-25T20:05:04",
"content": "I was actually using this technique on an Intel 80C186 in the mid 80s. We needed a square root function and the routine needed to complete in less that 10 msec. 10 msec was one revolution of the disk dri... | 1,760,371,714.940289 | ||
https://hackaday.com/2024/11/26/your-undocumented-project-may-also-baffle-people-someday/ | Your Undocumented Project May Also Baffle People Someday | Donald Papp | [
"classic hacks"
] | [
"antique",
"history",
"mystery"
] | What’s life without a little mystery? There’s one less rolling around after
historians finally identified a donated mystery machine that had been in storage for years
.
Feeding dough through this machine may have been faster, but probably not safer.
The main pieces of the machine are about a century old and any staff w... | 49 | 16 | [
{
"comment_id": "8066526",
"author": "Maggie",
"timestamp": "2024-11-27T03:06:12",
"content": "Similar machines were used up until late 1980s for processing pine cones.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8066677",
"author": "Dude",
... | 1,760,371,715.152339 | ||
https://hackaday.com/2024/11/26/a-robot-meant-for-humans/ | A Robot Meant For Humans | Bryan Cockfield | [
"News"
] | [
"animal crossing",
"animalese",
"blossom",
"human-robot interaction",
"large language model",
"laser cut",
"open source",
"research",
"robot",
"servo",
"text to speech"
] | Although humanity was hoping for a more optimistic robotic future in the post-war era, with media reflecting that sentiment like The Jetsons or Lost in Space, we seem to have shifted our collective consciousness (for good reasons) to a more Black Mirror/Terminator future as real-world companies like Boston Dynamics are... | 11 | 3 | [
{
"comment_id": "8066484",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2024-11-27T00:34:47",
"content": "I feel many universities and corporations have studied human robots interactions ad nauseum.If I end up talking to a robot, there will always be the suspicion it is recording m... | 1,760,371,715.055242 | ||
https://hackaday.com/2024/11/26/a-laser-with-mirrors-makes-a-crt-like-display/ | A Laser With Mirrors Makes A CRT-like Display | Maya Posch | [
"how-to",
"Laser Hacks"
] | [
"CRT display",
"phosphorescence",
"uv"
] | [bitluni]’s laser-based display pretending to be a an old-school vector CRT.
Phosphor-based displays like CRTs rely on the phosphor to emit light for a set amount of time after being activated, allowing them to display a seemingly persistent image with one drawing beam per color. Translated to UV-sensitive PLA filament... | 22 | 9 | [
{
"comment_id": "8066432",
"author": "Paul",
"timestamp": "2024-11-26T21:24:00",
"content": "Ooh. Now I want to make a SSTV display like this, mimicking the olde P7 phosphor CRTs.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8066488",
"author": "J... | 1,760,371,715.213489 | ||
https://hackaday.com/2024/11/26/alternatives-dont-need-to-be-bashed/ | Alternatives Don’t Need To Be Bashed | Bryan Cockfield | [
"Linux Hacks"
] | [
"alternatives",
"bash",
"janet",
"nutshell",
"shell"
] | By default, bash is the most popular command language simply because it’s included in most *nix operating systems. Additionally, people don’t tend to spend a lot of time thinking about whatever their computer uses for scripting as they might for other pieces of software like a word processor or browser. If you are so i... | 20 | 11 | [
{
"comment_id": "8066407",
"author": "GetOffMyHack",
"timestamp": "2024-11-26T19:48:48",
"content": "Switched to zsh a few years ago and never looked back!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8066580",
"author": "M",
"timestamp": "... | 1,760,371,717.070586 | ||
https://hackaday.com/2024/11/26/linux-fu-audio-network-pipes/ | Linux Fu: Audio Network Pipes | Al Williams | [
"Hackaday Columns",
"Linux Hacks",
"Slider"
] | [
"linux",
"Pipewire"
] | Life was simpler when everything your computer did was text-based. It is easy enough to shove data into one end of a pipe and take it out of the other. Sure, if the pipe extends across the network, you might have to call it a socket and take some special care. But how do you pipe all the data we care about these days? ... | 18 | 10 | [
{
"comment_id": "8066389",
"author": "Jack",
"timestamp": "2024-11-26T18:53:50",
"content": "I’m currently using jack and pipewire on Ubuntu to route audio from a Behringer XR18 into Ardour and back out to both the XR18 (to monitor mix) and to OBS. I combine the audio with a video stream provided fr... | 1,760,371,716.972462 | ||
https://hackaday.com/2024/11/26/recreating-unobtainium-weather-station-sensors/ | Recreating Unobtainium Weather Station Sensors | Lewin Day | [
"home hacks",
"Radio Hacks"
] | [
"hub",
"la crosse",
"LoRa",
"weather station"
] | Imagine you own a weather station. Then imagine that after some years have passed, you’ve had to replace one of the sensors multiple times. Your new problem is that the sensor is no longer available. What does a hacker like [Luca] do?
Build a custom solution, of course!
[Luca]’s work concerns the La Crosse WS-9257F-IT ... | 20 | 10 | [
{
"comment_id": "8066362",
"author": "Gravis",
"timestamp": "2024-11-26T17:20:45",
"content": "Just FYI, La Crosse makes garbage products. They are selling literal e-waste.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8066369",
"author": "cmholm",
... | 1,760,371,717.224742 | ||
https://hackaday.com/2024/11/26/humans-can-learn-echolocation-too/ | Humans Can Learn Echolocation Too | Lewin Day | [
"Featured",
"Original Art",
"Science",
"Slider"
] | [
"bat",
"echolocation",
"sonar",
"study"
] | Most of us associate echolocation with bats. These amazing creatures are able to chirp at frequencies beyond the limit of our hearing, and they use the reflected sound to map the world around them. It’s the perfect technology for navigating pitch-dark cave systems, so it’s understandable why evolution drove down this i... | 50 | 13 | [
{
"comment_id": "8066326",
"author": "Snarkenstein",
"timestamp": "2024-11-26T15:12:03",
"content": "Reminds me of Richard Feynman’s party trick of discerning which books someone has handled by smell. Everyone assumed he used some other method, and that the smelling was a blind to throw them off. He... | 1,760,371,717.36293 | ||
https://hackaday.com/2024/11/28/chocolate-coating-machine-mk-2-the-merry-go-round/ | Chocolate-Coating Machine Mk. 2: The Merry-Go-Round | Kristina Panos | [
"cooking hacks",
"Holiday Hacks"
] | [
"3D printed gears",
"air blade",
"chocolate",
"chocolate coating",
"chocolate fountain",
"enrobing",
"gear",
"motor"
] | This holiday season, [Chaz] wanted to continue his family’s tradition of enrobing a little bit of everything in dark chocolate, and
built an improved, rotating chocolate-coating machine
.
You may remember last year’s offering, aka
the conveyor belt version
. Although that one worked, too much chocolate was ultimately l... | 16 | 7 | [
{
"comment_id": "8067038",
"author": "The Commenter Formerly Known as Ren",
"timestamp": "2024-11-28T18:30:51",
"content": "Mmmmm!Chocolate covered turkey drumsticks!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8067041",
"author": "Andrew",
... | 1,760,371,716.908456 | ||
https://hackaday.com/2024/11/28/the-japanese-console-you-maybe-havent-heard-of/ | The Japanese Console You Maybe Haven’t Heard Of | Jenny List | [
"Games"
] | [
"Cassette Vision",
"Epoch Cassette Vision",
"Super Cassette Vision"
] | The games consoles which came out of Japan in the 1980s are the stuff of legend, with the offerings from Nintendo and Sega weaving themselves into global popular culture. Most of us can recite a list of the main players in the market, but how many of us would have Epoch and their Super Cassette Vision on that list? [Ni... | 13 | 5 | [
{
"comment_id": "8066972",
"author": "Joshua",
"timestamp": "2024-11-28T12:44:28",
"content": "Awesome! Never heard of it before, though.I like the name, also. Who needs a Super Famicom, if there’s a Super Cassette Vision! 😁Seriously, though. I remember my friends and me calling game cartridges “ca... | 1,760,371,717.121171 | ||
https://hackaday.com/2024/11/28/homebrew-phosphorescence-detector-looks-for-the-glow-in-everyday-objects/ | Homebrew Phosphorescence Detector Looks For The Glow In Everyday Objects | Dan Maloney | [
"LED Hacks"
] | [
"adc",
"AVR",
"op-amp",
"phosphorescence",
"photodiode",
"transimpedance",
"uv"
] | Spoiler alert: almond butter isn’t phosphorescent. But powdered milk is, at least to the limit of detection of
this homebrew phosphorescence detector
.
Why spend a bunch of time and money on such a thing? The obvious answer is “Why not?”, but more specifically, when [lcamtuf]’s son took a shine (lol) to making phosphor... | 8 | 6 | [
{
"comment_id": "8066990",
"author": "Jim Luther",
"timestamp": "2024-11-28T14:59:34",
"content": "In the 1980s I worked for marine biologists who used fluorometers to measure chlorophyll in the open ocean at concentrations of micrograms per litre in seawater. The lab instuments used a photomultipli... | 1,760,371,717.270673 | ||
https://hackaday.com/2024/11/27/even-apple-get-their-parts-wrong-sometimes/ | Even Apple Get Their Parts Wrong Sometimes | Jenny List | [
"Mac Hacks",
"PCB Hacks"
] | [
"LCIII",
"Macintosh LC",
"rework"
] | There can be few among those of us who produce printed circuit boards, who have not at some point placed a component the wrong way round, or with the wrong footprint. Usually this can be rectified with a bit of rework and a fresh board spin, but just occasionally these mishaps make it into the wild undetected. It seems... | 14 | 6 | [
{
"comment_id": "8066930",
"author": "k-ww",
"timestamp": "2024-11-28T07:41:58",
"content": "Ah, the joys of a cap designed in with polarity reversed. In the late 80’s I worked at SMC [Standard Micro Systems], and since they produced a chip that implemented the ArcNet protocol, they also made an int... | 1,760,371,717.171753 | ||
https://hackaday.com/2024/11/27/a-look-under-the-hood-of-intermediate-frequency-transformers/ | A Look Under The Hood Of Intermediate Frequency Transformers | Dan Maloney | [
"Parts"
] | [
"choke",
"ferrite",
"IFT",
"inductor",
"intermediate frequency",
"RF",
"VNAm resonance"
] | If you’ve been tearing electronic devices apart for long enough, you’ll know that the old gear had just as many mysteries within as the newer stuff. The parts back then were bigger, of course, but often just as inscrutable as the SMD parts that populate boards today. And the one part that always baffled us back in the ... | 11 | 8 | [
{
"comment_id": "8066928",
"author": "ytrewq",
"timestamp": "2024-11-28T07:20:22",
"content": "IF transformers are still sold, but finding the correct one for a project isn’t that easy, especially when they’re not the “standard” values like 455KHz or 10.7MHz and bandwidth type. I would encourage peo... | 1,760,371,717.018956 | ||
https://hackaday.com/2024/11/27/diy-pipe-inspector-goes-where-no-bot-has-gone-before/ | DIY Pipe Inspector Goes Where No Bot Has Gone Before | Dan Maloney | [
"Robots Hacks"
] | [
"ethernet",
"inspection",
"pip",
"PoE",
"Raspberry Pi Zero",
"remotely operated vehicle",
"rov",
"sewer"
] | If you think your job sucks, be grateful you’re not
this homebrew sewer inspection robot
.
Before anyone gets upset, yes we know what [Stargate System] built here isn’t a robot at all; it’s more of a remotely operated vehicle. That doesn’t take away from the fact that this is a very cool build, especially since it has ... | 7 | 4 | [
{
"comment_id": "8066873",
"author": "Eightbitswide",
"timestamp": "2024-11-28T01:42:30",
"content": "Obligatory link:https://www.youtube.com/watch?v=sa9MpLXuLs0",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8066876",
"author": "Maggie",
"timestamp": ... | 1,760,371,716.85152 | ||
https://hackaday.com/2024/11/27/would-an-indexing-feature-benefit-your-next-hinge-design/ | Would An Indexing Feature Benefit Your Next Hinge Design? | Donald Papp | [
"3d Printer hacks",
"how-to"
] | [
"3d printed",
"butt hinge",
"design",
"dfm",
"hinge"
] | [Angus] of Maker’s Muse has
a video with a roundup of different 3D-printable hinge designs
, and he points out that a great thing about 3D printing objects is that adding printable features to them is essentially free.
These hinges have an indexing feature that allows them to lock into place, no additional parts needed... | 2 | 1 | [
{
"comment_id": "8066956",
"author": "H Hack",
"timestamp": "2024-11-28T11:04:40",
"content": "The “live hinge” reminded me of the “CA Hinge” from the balsa wood RC airplane models. It’s basically a fiber/fabric/plastic flap that you cut and superglue into thin slots. Instead of a live hinge, you co... | 1,760,371,717.412183 | ||
https://hackaday.com/2024/11/27/floss-weekly-episode-811-elixir-nerves-real-embedded-linux/ | FLOSS Weekly Episode 811: Elixir & Nerves – Real Embedded Linux | Jonathan Bennett | [
"Hackaday Columns",
"Podcasts"
] | [
"elixir",
"FLOSS Weekly",
"linux",
"Nerves",
"raspberry pi"
] | This week,
Jonathan Bennett
and
Lars Wikman
chat about Elixir and Nerves — a modern language that’s a take on Erlang, and an embedded Linux approach for running Elixir code on devices.
https://underjord.io
https://elixir-lang.org/
https://nerves-project.org/
Introducing Elixir and the ecosystem from Oredev 2023
Introdu... | 1 | 1 | [
{
"comment_id": "8066986",
"author": "X4lldux",
"timestamp": "2024-11-28T14:47:30",
"content": "I worked with Elixir & Nerves in my previous job and it was a a joy (still working with Elixir, but sadly not embedded anymore). Device I was building was a bridge between PLC, POS, NFC card scanner, a bu... | 1,760,371,718.156217 | ||
https://hackaday.com/2024/11/27/could-nuclear-be-the-way-to-produce-synthetic-fuel-on-the-cheap/ | Could Nuclear Be The Way To Produce Synthetic Fuel On The Cheap? | Lewin Day | [
"Hackaday Columns",
"Science",
"Slider"
] | [
"hydrogen",
"nuclear",
"synfuel",
"synthetic fuel"
] | Fossil fuels can be a bit fussy to access, and geopolitics tends to make prices volatile. Burning them also takes carbon out of the ground and puts it into the atmosphere, with undesirable climate implications. The hunt for a solution has been on for quite some time.
Various synthetic fuels have been proposed as a solu... | 127 | 19 | [
{
"comment_id": "8066738",
"author": "TG",
"timestamp": "2024-11-27T18:11:49",
"content": "Make nuclear synfuels and bring muscle cars back. I believe in a less shitty and annoying future, I am ready for it",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8066... | 1,760,371,718.688179 | ||
https://hackaday.com/2024/11/27/retrotechtacular-the-deadly-shipmate/ | Retrotechtacular: The Deadly Shipmate | Dan Maloney | [
"Retrotechtacular"
] | [
"115 volts",
"ac",
"electrocution",
"grounding",
"mains",
"navy",
"retrotechtacular",
"safety",
"shock"
] | During World War II, shipboard life in the United States Navy was a gamble. No matter which theater of operations you found yourself in, the enemy was all around on land, sea, and air, ready to deliver a fatal blow and send your ship to the bottom. Fast forward a couple of decades and Navy life was just as hazardous bu... | 33 | 18 | [
{
"comment_id": "8066704",
"author": "V",
"timestamp": "2024-11-27T17:04:14",
"content": "I don’t believe RCDs were present on navy ships, even considering the technology was already invented at the time of these videos…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"commen... | 1,760,371,718.061288 | ||
https://hackaday.com/2024/11/27/boss-byproducts-corium-is-man-made-lava/ | Boss Byproducts: Corium Is Man-Made Lava | Kristina Panos | [
"chemistry hacks",
"Featured",
"History",
"Interest",
"Original Art",
"Slider"
] | [
"Chernobyl",
"concrete",
"corium",
"fission",
"Fukushima",
"fusion",
"Meltdown",
"three mile island"
] | So now we’ve talked about all kinds of byproducts, including man-made (Fordite), nature-made (fulgurites), and one that’s a little of both (calthemites). Each of these is beautiful in its own way, but I’m not sure about the beauty and merit of
corium
— that which is created in a nuclear reactor core during a meltdown.
... | 19 | 5 | [
{
"comment_id": "8066686",
"author": "paulvdh",
"timestamp": "2024-11-27T16:10:02",
"content": "“man made lava” is not very remarkable. Plenty of slag waste from the steel manufacturing industry. Anything melts and even evaporates, and then turns into a plasma if you make it hot enough.",
"paren... | 1,760,371,717.940648 | ||
https://hackaday.com/2024/11/27/life-found-on-ryugu-asteroid-sample-but-it-looks-very-familiar/ | Life Found On Ryugu Asteroid Sample, But It Looks Very Familiar | Donald Papp | [
"Science",
"Space"
] | [
"asteroid",
"bacteria",
"contamination",
"Hayabusa2",
"ryugu"
] | Samples taken from the space-returned piece of asteroid Ryugu were collected and prepared under strict anti-contamination controls. Inside the cleanest of clean rooms, a tiny particle was collected from the returned sample with sterilized tools in a nitrogen atmosphere and stored in airtight containers before being emb... | 72 | 16 | [
{
"comment_id": "8066633",
"author": "Brian",
"timestamp": "2024-11-27T12:30:34",
"content": "Reminds me of early research on cancer. A lot of cancer research had to be dumped because a particular strain of cancer cells (HeLa) would act like a weed in the lab, contaminating other samples, crowding o... | 1,760,371,718.460074 | ||
https://hackaday.com/2024/11/27/getting-started-in-laser-cutting/ | Getting Started In Laser Cutting | Jenny List | [
"Laser Hacks"
] | [
"EMF 2024",
"Laser cutting"
] | If you were to walk into most of the world’s hackerspaces, it’s likely that the most frequent big-ticket tool you’ll find after a 3D printer is a laser cutter. A few years ago that would inevitably been one of the ubiquitous blue Chinese-made K40 machines, but here in 2024 it’s become common to see something far more s... | 20 | 2 | [
{
"comment_id": "8066599",
"author": "shinsukke",
"timestamp": "2024-11-27T09:14:11",
"content": "I want a laser cutter which can do copper clad boards",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8066609",
"author": "Marc",
"timestamp": "2... | 1,760,371,718.115923 | ||
https://hackaday.com/2024/11/26/massive-mural-from-thermal-receipt-paper/ | Massive Mural From Thermal Receipt Paper | Heidi Ulrich | [
"home hacks",
"News",
"Software Hacks"
] | [
"art",
"Mural",
"paper",
"printing",
"receipt paper",
"thermal paper"
] | Turning trash into art is something we undoubtedly all admire. [Davis DeWitt] did just that with
a massive mural
made entirely from discarded receipt paper. [Davis] got lucky while doing some light dumpster diving, where he stumbled upon the box of thermal paper rolls. He saw the potential them and, armed with engineer... | 11 | 7 | [
{
"comment_id": "8066566",
"author": "TG",
"timestamp": "2024-11-27T06:27:01",
"content": "The forbidden bisphenol A wallpaper",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8066606",
"author": "ono",
"timestamp": "2024-11-27T09:50:05",
... | 1,760,371,718.287041 | ||
https://hackaday.com/2024/11/25/keebin-with-kristina-the-one-with-the-tron-keyboard/ | Keebin’ With Kristina: The One With The TRON Keyboard | Kristina Panos | [
"Hackaday Columns",
"Peripherals Hacks",
"Slider"
] | [
"3.5\" floppy disk",
"bicycle keyboard",
"ESP32",
"Fitch typewriter",
"floppy disk",
"hid",
"TRON keyboard",
"usb host"
] | [Folaefolc] was craving a new keyboard build a few weeks ago and got inspired by the humble 3.5″ floppy disk. So much so that he decided to make
a split keyboard with each half having the exact footprint of a floppy
— 90 mm x 94 mm. And you know the PCBs have floppy details silkscreened on the back. Just check out the ... | 15 | 6 | [
{
"comment_id": "8065976",
"author": "TG",
"timestamp": "2024-11-25T18:10:48",
"content": "The bicycle handlebar keyboard is a new plateau of workaholism. I love it. And up there next to the keyboard trousers for cyberpunk aesthetic",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,371,718.518835 | ||
https://hackaday.com/2024/11/25/experimental-drone-flies-like-a-bird/ | Experimental Drone Flies Like A Bird | Danie Conradie | [
"drone hacks"
] | [
"bird",
"flight controller",
"nature-inspired"
] | Most RC planes follow a simple control scheme: elevators for pitch, rudder for yaw, and ailerons for roll. This one-to-one mapping keeps things straightforward, and fewer actuators means less weight. But nature has other ideas. Birds achieve flight control through complex, coordinated movements where different body par... | 11 | 6 | [
{
"comment_id": "8065977",
"author": "TG",
"timestamp": "2024-11-25T18:16:05",
"content": "In future theaters of war, people will slaughter or poison all the local birds just to make sure they don’t provide cover for enemy ornithopter drones carrying HE shaped charges or antipersonnel frag grenades.... | 1,760,371,717.991756 | ||
https://hackaday.com/2024/11/25/apollo-era-pcb-reverse-engineering-to-kicad/ | Apollo-era PCB Reverse Engineering To KiCad | Chris Lott | [
"Featured",
"Reverse Engineering",
"Skills",
"Slider"
] | [
"apollo",
"circuit board",
"KiCAD",
"nasa",
"reverse engineering",
"schematics"
] | Earlier this year [Skyhawkson] got ahold of an
Apollo-era printed circuit board
which he believes was used in a NASA test stand. He took high quality photos of both sides of the board and superimposed them atop each other. After digging into a few obsolete parts from the 1960s, he was able to trace out the connections.... | 24 | 11 | [
{
"comment_id": "8065931",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2024-11-25T15:31:19",
"content": "Seeing the conformal coating on the Title Photo brought back memories of broken components when I was repurposing those parts from excessed military circuits.",
"parent_id"... | 1,760,371,718.353531 | ||
https://hackaday.com/2024/11/25/the-lancaster-ascii-keyboard-recreated/ | The Lancaster ASCII Keyboard Recreated | Al Williams | [
"Retrocomputing"
] | [
"Don Lancaster",
"keyboard",
"TV Typewriter"
] | It is hard to imagine that there was a time when having a keyboard and screen readily available was a real problem for people who wanted to experiment with computers. In the 1970s, if you wanted a terminal, you might well have built a [Don Lancaster] “TV Typewriter” and the companion “low cost keyboard.” [Artem Kalinch... | 20 | 7 | [
{
"comment_id": "8065887",
"author": "Joshua",
"timestamp": "2024-11-25T12:50:38",
"content": "“It is hard to imagine that there was a time when having a keyboard and screen readily available was a real problem for people who wanted to experiment with computers.”Really? Why is that so? I knew about ... | 1,760,371,718.746948 | ||
https://hackaday.com/2024/11/25/hacking-global-positioning-systems-onto-16th-century-maps/ | Hacking Global Positioning Systems Onto 16th-Century Maps | Heidi Ulrich | [
"gps hacks"
] | [
"georeference",
"georeferencing",
"gps",
"historical map",
"history",
"map",
"navigation"
] | What if GPS had existed in 1565? No satellites or microelectronics, sure—but let’s play along. Imagine the bustling streets of Antwerp, where merchants navigated the sprawling city with woodcut maps. Or sailors plotting Atlantic crossings with accuracy unheard of for the time. This whimsical intersection of history and... | 9 | 5 | [
{
"comment_id": "8065883",
"author": "Tim McNerney",
"timestamp": "2024-11-25T12:41:52",
"content": "Older maps have distortions compared to reality. (Surveying was hard. Heck, even the vectorized USGS map in my pre-smartphone GPS receiver has obvious near-misses). What would be most fun would be to... | 1,760,371,719.58128 | ||
https://hackaday.com/2024/11/24/programmable-zener-is-really-an-ic/ | Programmable Zener Is Really An IC | Al Williams | [
"hardware"
] | [
"tl431",
"zener"
] | [Kevin] doesn’t stock zener diodes anymore. Why? Because for everything he used to use zeners, he now uses TL431
bandgap voltage references
. These look like zener diodes but have an extra terminal. That extra terminal allows you to set the threshold to any value you want (within specifications, of course). Have a look... | 25 | 15 | [
{
"comment_id": "8065828",
"author": "Cyk",
"timestamp": "2024-11-25T08:44:23",
"content": "The TL431 is in about 90% of all offline switching power supplies, in the feedback loop from the secondary to the primary side, through an optocoupler.Whenever I open one, I search for, and usually find it.",... | 1,760,371,718.883961 | ||
https://hackaday.com/2024/11/24/aftershock-ii-how-students-shattered-20-year-amateur-rocket-records/ | Aftershock II: How Students Shattered 20-Year Amateur Rocket Records | Heidi Ulrich | [
"News",
"Space"
] | [
"Aftershock II",
"Black Rock Desert",
"home made rocket",
"Nevada",
"record",
"rocket",
"RPL",
"spaceflight",
"student made"
] | When it comes to space exploration, we often think of billion-dollar projects—NASA’s Artemis missions, ESA’s Mars rovers, or China’s Tiangong station. Yet, a group of U.S. students at USC’s Rocket Propulsion Lab (RPL) has achieved something truly extraordinary—a reminder that groundbreaking work doesn’t always require ... | 40 | 7 | [
{
"comment_id": "8065771",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2024-11-25T03:46:19",
"content": "As the link shows for our SI friends, that is 27,400 meters.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8065774",
"author"... | 1,760,371,718.819312 | ||
https://hackaday.com/2024/11/24/hackaday-links-november-24-2024/ | Hackaday Links: November 24, 2024 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links"
] | [
"Atmos",
"bbs",
"bulletin board",
"casio",
"clock",
"emc",
"hackaday links",
"KiCAD",
"machine vision",
"openems",
"optical sorting",
"perpetual motion",
"simulation",
"Smart ring",
"timepiece",
"Ward Christensen",
"watch",
"wearable",
"XMODEM"
] | We received belated word this week of
the passage of Ward Christensen
, who died unexpectedly back in October at the age of 78. If the name doesn’t ring a bell, that’s understandable, because the man behind the first computer BBS wasn’t much for the spotlight. Along with Randy Suess and in response to the Blizzard of ’... | 6 | 3 | [
{
"comment_id": "8065742",
"author": "PWalsh",
"timestamp": "2024-11-25T00:13:55",
"content": "How does the stem remover work?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8065754",
"author": "CMH62",
"timestamp": "2024-11-25T00:58:35",
... | 1,760,371,719.946332 | ||
https://hackaday.com/2024/11/24/double-your-analog-oscilloscope-fun-with-this-retro-beam-splitter/ | Double Your Analog Oscilloscope Fun With This Retro Beam Splitter | Dan Maloney | [
"Tool Hacks"
] | [
"555",
"analog",
"beam splitter",
"crt",
"multiplexing",
"oscilloscope",
"phosphor",
"scope",
"time-division"
] | These days, oscilloscope hacking is all about enabling features that the manufacturer baked into the hardware but locked out in the firmware. Those hacks are cool, of course, but back in the days of analog scopes, unlocking new features required a decidedly more hardware-based approach.
For an example of this, take a l... | 18 | 8 | [
{
"comment_id": "8065721",
"author": "ono",
"timestamp": "2024-11-24T21:59:46",
"content": "Beam splitter ? sigh… A beam splitter or beamsplitter is an optical device that splits a beam of light into a transmitted and a reflected beam (wikipedia)",
"parent_id": null,
"depth": 1,
"replie... | 1,760,371,719.425111 | ||
https://hackaday.com/2024/11/24/flyback-done-right/ | Flyback, Done Right | Jenny List | [
"High Voltage"
] | [
"flyback",
"flyback transformer",
"switch mode"
] | A common part used to create a high voltage is a CRT flyback transformer, having been a ubiquitous junk pile component. So many attempts to use them rely on brute force, with power transistors in simple feedback oscillators dropping high currents into hand-wound primaries, so it’s refreshing to see a much more nuanced ... | 6 | 6 | [
{
"comment_id": "8065676",
"author": "RingingResonance",
"timestamp": "2024-11-24T18:10:24",
"content": "I did something similar but with a quad op-amp, some transistors, and one 250v power transistor to drive the primary. The results was my custom flyback transformer and circuit produced a wide ran... | 1,760,371,719.361023 | ||
https://hackaday.com/2024/11/24/risc-cpu-lives-in-excel/ | RISC CPU Lives In Excel | Al Williams | [
"Misc Hacks"
] | [
"cpu",
"excel"
] | Last time we checked in on [Inkbox], he had made a 16-bit CPU in Excel. Impressive, but not really practical. Presumably,
his latest project
isn’t any more practical, but we suspect an 8-bit RISC CPU was easier to implement in Excel and probably runs faster, too. The new machine uses a stack architecture with a simplif... | 13 | 7 | [
{
"comment_id": "8065658",
"author": "Eric",
"timestamp": "2024-11-24T16:24:29",
"content": "Would it be theoretically possible to emulate a 64 bits CPU in Excel, and have it run emulated Windows within Excel? Doesn’t need to work at decent speed, just work at all.",
"parent_id": null,
"dep... | 1,760,371,719.219732 | ||
https://hackaday.com/2024/11/24/modular-multi-rotor-flies-up-to-two-hours/ | Modular Multi-Rotor Flies Up To Two Hours | Danie Conradie | [
"drone hacks"
] | [
"3d printed",
"ardupilot",
"pid",
"quadcopter"
] | Flight time remains the Achilles’ heel of electric multi-rotor drones, with even high-end commercial units struggling to stay airborne for an hour. Enter
Modovolo
, a startup that’s shattered this limitation with their modular drone system achieving flights
exceeding two hours
.
The secret? Lightweight modular “lift po... | 28 | 14 | [
{
"comment_id": "8065617",
"author": "Dude",
"timestamp": "2024-11-24T12:14:32",
"content": "The video looks a bit odd though. Towards the end where the drone starts to drop down, it looks kinda like a green screen effect with someone bobbing the thing on a fishing line.",
"parent_id": null,
... | 1,760,371,719.301845 | ||
https://hackaday.com/2024/11/24/hacking-the-soil-to-combat-desertification/ | Hacking The Soil To Combat Desertification | Navarre Bartz | [
"green hacks",
"News"
] | [
"africa",
"agriculture",
"desertification",
"great green wall",
"green infrastructure",
"healthy soils",
"regenerative agriculture",
"soil health",
"un",
"world food program"
] | While the Sahara Desert is an important ecosystem in its own right, its human neighbors in the Sahel would like it to stop encroaching on their environment. [Andrew Millison] took a look at how the people in the region are using
“half moons” and zai pits to fight desertification
.
With assistance from the World Food Pr... | 14 | 7 | [
{
"comment_id": "8065663",
"author": "TG",
"timestamp": "2024-11-24T16:52:26",
"content": "I wonder if it will be independently managed long-term",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8066248",
"author": "Hassi",
"timestamp": "2024-1... | 1,760,371,719.640217 | ||
https://hackaday.com/2024/11/23/40-ham-antenna-works-six-bands/ | $40 Ham Antenna Works Six Bands | Al Williams | [
"Radio Hacks"
] | [
"antenna",
"ham radio"
] | [My Ham Radio Journey] wanted to see if a “common person” (in his words) could build an effective
vertical ham radio antenna
. If you look at the video below, the answer is apparently yes.
He started with a 24-foot fishing rod and a roll of 22 gauge wire. The height of the antenna wire is just over 20 feet long and he ... | 14 | 9 | [
{
"comment_id": "8065569",
"author": "Jeff Kowalski",
"timestamp": "2024-11-24T06:56:13",
"content": "Nice! Now bring that up the mountain with us!https://www.sota.org.uk/",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8065573",
"author": "CUF",
... | 1,760,371,719.744191 | ||
https://hackaday.com/2024/11/23/rfid-from-first-principles-and-saving-a-cat/ | RFID From First Principles And Saving A Cat | Dan Maloney | [
"Radio Hacks",
"Wireless Hacks"
] | [
"amplitude shift keying",
"arduino",
"cats",
"demodulation",
"detector",
"Differential Manchester",
"FDX-B",
"low pass filter",
"modulation",
"rfid"
] | [Dale Cook] has cats, and as he readily admits, cats are jerks. We’d use stronger language than that, but either way it became a significant impediment to making progress with an RFID-based sensor to allow his cats access to their litterbox. Luckily, though, he was able to salvage the project enough to give
a great tal... | 5 | 3 | [
{
"comment_id": "8065556",
"author": "Ticktok",
"timestamp": "2024-11-24T05:14:33",
"content": "I love this and am so jealous of the drive to finish. I ended up on a similar path years ago with an rfid cat feeder that had a fatal flaw. It was not water proof and cats tend to like to puke….. all over... | 1,760,371,719.686433 | ||
https://hackaday.com/2024/11/23/forget-pixel-art-try-subpixels/ | Forget Pixel Art: Try Subpixels | Al Williams | [
"Art"
] | [
"crt",
"pixel art",
"subpixel"
] | [Japhy Riddle] was tired of creating pixel art. He went to
subpixel art
. The idea is that since each color pixel is composed of three subpixels, your display is actually three times as dense as you think it is. As long as you don’t care about the colors, of course.
Is it practical? No, although it is related to the Ba... | 22 | 9 | [
{
"comment_id": "8065506",
"author": "Dude",
"timestamp": "2024-11-24T00:53:13",
"content": "This would be nice for anyone looking at photographs on the typical computer monitor. What you generally get is about 100 DPI resolution, pixels per inch really, out of the normal consumer displays. All the ... | 1,760,371,719.79932 | ||
https://hackaday.com/2024/11/23/close-shave-for-an-old-oscilloscope-saved-with-a-sticky-note/ | Close Shave For An Old Oscilloscope Saved With A Sticky Note | Dan Maloney | [
"Repair Hacks"
] | [
"attenuator",
"oscilloscope",
"repair",
"Tek",
"tektronix",
"tin whiskers"
] | When you tear into an old piece of test equipment, you’re probably going to come up against some surprises. That’s especially true of high-precision gear like oscilloscopes from the time before ASICs and ADCs, which had to accomplish so much with discrete components and a lot of engineering ingenuity.
Unfortunately, th... | 12 | 5 | [
{
"comment_id": "8065468",
"author": "Jack",
"timestamp": "2024-11-23T22:03:03",
"content": "An extremely unlikely find, however not impossible. One would never think to look for tin whiskers within an assembly produced prior to the widespread use of ROHS solder, but ROHS solder may have been used b... | 1,760,371,719.851031 | ||
https://hackaday.com/2024/11/23/3d-printed-boat-uses-tank-tracks-for-amphibious-propulsion/ | 3D Printed Boat Uses Tank Tracks For Amphibious Propulsion | Lewin Day | [
"Transportation Hacks"
] | [
"boat",
"snowmobile",
"tracked vehicle",
"tracks"
] | Boats normally get around with propellers or water jets for propulsion. Occasionally, they use paddles. [Engineering After Hours] claims he is “changing the boat game forever” with his new 3D printed boat design
that uses a tank tread for propulsion instead
. Forgive him for the hyperbole of the YouTuber. It’s basicall... | 16 | 9 | [
{
"comment_id": "8065437",
"author": "Sailingfree",
"timestamp": "2024-11-23T20:31:35",
"content": "Or they can also get around using sails, or oars, or(canoe/kayak) paddles…… not everything needs to be motorised, noisy or splashy!",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,371,720.245273 | ||
https://hackaday.com/2024/11/23/open-source-forced-innovation-and-making-good-products/ | Open Source, Forced Innovation, And Making Good Products | Elliot Williams | [
"3d Printer hacks",
"Hackaday Columns",
"Rants"
] | [
"3d printer",
"newsletter",
"open hardware",
"open source hardware",
"printer",
"prusa"
] | The open-source hardware business landscape is no doubt a tough one, but is it actually tougher than for closed-source hardware? That question has been on our minds since the announcement that the latest 3D printer design from former open-source hardware stalwarts Prusa Research
seems like it’s not going to come with d... | 46 | 10 | [
{
"comment_id": "8065358",
"author": "Greg",
"timestamp": "2024-11-23T15:50:29",
"content": "Imagine if the next Bambu flagship announced for beginning of next year is also easy to repair… The difference between both would become the features and the Core One already has less than the X1C (no flow c... | 1,760,371,720.186286 | ||
https://hackaday.com/2024/11/23/3d-space-can-be-tiled-with-corner-free-shapes/ | 3D Space Can Be Tiled With Corner-free Shapes | Donald Papp | [
"Science"
] | [
"math",
"soft cell",
"tesselation",
"tiling"
] | Tiling a space with a repeated pattern that has no gaps or overlaps (a structure known as a tessellation) is what led mathematician [Gábor Domokos] to ponder a question: how few corners can a shape have and still fully tile a space? In a 2D the answer is two, and
a 3D space can be tiled in shapes that have no corners a... | 28 | 10 | [
{
"comment_id": "8065325",
"author": "Gordon M Shephard Jr",
"timestamp": "2024-11-23T13:40:39",
"content": "Nautiluses don’t know how to make corners.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8065327",
"author": "Danjovic",
"timestamp": "2024-11... | 1,760,371,720.314952 | ||
https://hackaday.com/2024/11/23/drilling-rig-makes-accurate-holes-in-seconds/ | Drilling Rig Makes Accurate Holes In Seconds | Lewin Day | [
"Tool Hacks"
] | [
"drill",
"drilling",
"jig",
"power drill",
"wood"
] | Drilling holes can be quite time consuming work, particularly if you have to drill a lot of them. Think about all the hassle of grabbing a part, fixturing it in the drill press, lining it up, double checking, and then finally making the hole. That takes some time, and that’s no good if you’ve got lots of parts to drill... | 19 | 11 | [
{
"comment_id": "8065313",
"author": "Jouni",
"timestamp": "2024-11-23T13:19:05",
"content": "For me it looks like the hole is a bit crooked at 6:37. The drill is not lined up straight? Maybe classical xample how you can make lots of damage with little effort.For the single hole, drill press isn’t t... | 1,760,371,720.371977 | ||
https://hackaday.com/2024/11/22/transforming-drone-drives-and-flies/ | Transforming Drone Drives And Flies | Danie Conradie | [
"drone hacks",
"Transportation Hacks"
] | [
"3d printed",
"dRehmFlight",
"quadcopter",
"transformer robot"
] | Vehicles that change their shape and form to adapt to their operating environment have long captured the imagination of tech enthusiasts, and building one remains a perennial project dream for many makers. Now, [Michael Rechtin] has made the dream a bit more accessible with a 3D printed
quadcopter that seamlessly trans... | 8 | 4 | [
{
"comment_id": "8065295",
"author": "limroh",
"timestamp": "2024-11-23T11:50:52",
"content": "driving the system via sprockets that engage directly with the same teeth that drive the tracks.Pretty sure that’s a “nope” right there. From the picture alone one can see that the wheels have a track of g... | 1,760,371,720.417457 | ||
https://hackaday.com/2024/11/22/mammalian-ancestors-shed-light-on-the-great-dying/ | Mammalian Ancestors Shed Light On The Great Dying | Navarre Bartz | [
"Science"
] | [
"carbon dioxide",
"climate",
"climate change",
"co2",
"extinction event",
"paleobiology",
"paleoclimatology",
"paleontology",
"Pangea",
"volcano",
"volcanology"
] | As we move through the Sixth Extinction, it can be beneficial to examine what caused massive die-offs in the past.
Lystrosaurus
specimens from South Africa
have been found
that may help clarify what happened 250 million years ago. [via
IFLScience
]
The
Permian-Triassic Extinction Event
, or the Great Dying, takes the c... | 31 | 8 | [
{
"comment_id": "8065200",
"author": "SayWhat?",
"timestamp": "2024-11-23T03:41:22",
"content": "There’s hacks, and then there’s hacks.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8065208",
"author": "maybe",
"timestamp": "2024-11-23T04:51... | 1,760,371,720.542776 | ||
https://hackaday.com/2024/11/22/lasers-galvos-action-a-quest-for-laser-mastery/ | Lasers, Galvos, Action: A Quest For Laser Mastery | Heidi Ulrich | [
"Laser Hacks"
] | [
"galvanomirror",
"galvo",
"laser",
"laser projector",
"python",
"RGB laser",
"spectometry",
"stm32",
"STM32 timer"
] | If you’re into hacking hardware and bending light to your will, [Shoaib Mustafa]’s latest project is bound to spike your curiosity. Combining lasers to project multi-colored beams onto a screen is ambitious enough, but doing it with a galvanomirror, STM32 microcontroller, and mostly scratch-built components? That’s nex... | 1 | 1 | [
{
"comment_id": "8065218",
"author": "Shoaib Mustafa",
"timestamp": "2024-11-23T06:13:38",
"content": "Thank you, Heidi, for taking the time to review the build log and for your kind words about my work. While I feel it pales in comparison to the incredible projects I’ve admired and learned from on ... | 1,760,371,720.626335 | ||
https://hackaday.com/2024/11/22/build-yourself-a-useful-resistor-decade-box/ | Build Yourself A Useful Resistor Decade Box | Lewin Day | [
"Tool Hacks"
] | [
"decade box",
"resistor",
"tools"
] | If you’ve ever worked with guitar pedals or analog audio gear, you’ve probably realized the value of a resistor decade box. They substitute for a resistor in a circuit and let you quickly flick through a few different values at the twist of a knob. You can still buy them if you know where to look,
but [M Caldeira] deci... | 18 | 8 | [
{
"comment_id": "8065152",
"author": "Paul",
"timestamp": "2024-11-22T21:22:49",
"content": "Nice to see the resistors are easily-replaceable robust through-hole components. Because, inevitably, one resistor gets burnt one day, rendering the whole box markedly less useful.",
"parent_id": null,
... | 1,760,371,720.471618 | ||
https://hackaday.com/2024/11/22/oled-screen-mounting-without-the-pain/ | OLED Screen Mounting, Without The Pain | Jenny List | [
"Parts"
] | [
"oled",
"panel mount"
] | There was a time when no self-respecting electronics engineer would build a big project without at least one panel meter. They may be a rare part here in 2024, but we find ourselves reminded of them by [24Eng]’s project. It’s
a 3D printed housing for one of those common small OLED displays
, designed to be mounted on a... | 10 | 6 | [
{
"comment_id": "8065133",
"author": "Paul",
"timestamp": "2024-11-22T20:29:59",
"content": "Nice solution, but that asymmetry itches my OCD.And, like the linked post mentions, less fugly screw heads are an option.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id... | 1,760,371,720.591347 | ||
https://hackaday.com/2024/11/22/hack-on-self-the-un-crash-alarm/ | Hack On Self: The Un-Crash Alarm | Arya Voronova | [
"Hackaday Columns"
] | [] | Ever get home, tired after work, sit down on a couch, and spend an hour or two sitting down without even managing to change into your home clothes? It’s a seriously unpleasant in-between state – almost comfortable, but you know you’re not really at rest, likely hungry, and even your phone battery is likely about to die... | 52 | 20 | [
{
"comment_id": "8065078",
"author": "clancydaenlightened",
"timestamp": "2024-11-22T18:35:16",
"content": "Take some LSD or smoke some marijuanaAnd this won’t be a problem for you…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8065079",
"author": "... | 1,760,371,720.806859 | ||
https://hackaday.com/2024/11/22/hackaday-podcast-episode-297-prusa-eschews-open-source-hardware-the-lemontron-prints-upside-down-and-the-vecdec-cyberdeck-does-minority-report/ | Hackaday Podcast Episode 297: Prusa Eschews Open Source Hardware, The Lemontron Prints Upside-Down, And The Vecdec Cyberdeck Does Minority Report | Kristina Panos | [
"Hackaday Columns",
"Podcasts"
] | [
"Hackaday Podcast"
] | This week on the Podcast, Hackaday’s Elliot Williams and Kristina Panos joined forces to bring you the latest news, mystery sound, and of course, a big bunch of hacks from the previous week.
First up in the news: Elliot was at
Electronica
and
spotted a wild Raspberry Pi Compute Module 5
. And just as excitingly,
FreeCA... | 1 | 1 | [
{
"comment_id": "8065157",
"author": "JMR",
"timestamp": "2024-11-22T22:22:34",
"content": "NO Christina! NO Eliot! Don’t spend all that money! Buy a couple ATA boxes to build your home intercoms. Then you can still set it up to just ring if you want. Way cheaper and way more options. So many op... | 1,760,371,720.848118 | ||
https://hackaday.com/2024/11/22/enhiker-helps-you-decide-if-its-a-good-day-to-hike/ | Enhiker Helps You Decide If Its A Good Day To Hike | Lewin Day | [
"green hacks",
"Tool Hacks"
] | [
"gnss",
"gps",
"hiking",
"weather"
] | Many of us check the weather before heading out for the day — we want to know if we’re dressed (or equipped) properly to handle what Mother Nature has planned for us. This is even more important if you’re going out hiking, because you’re going to be out in a more rugged environment. To aid in this regard,
[Mukesh Sankh... | 10 | 8 | [
{
"comment_id": "8065062",
"author": "Mike",
"timestamp": "2024-11-22T18:02:35",
"content": "and you can’t lookup the weather beforehand on your phone ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8065066",
"author": "TG",
"timestamp": "2024-11-22T1... | 1,760,371,721.024195 | ||
https://hackaday.com/2024/11/22/this-week-in-security-footguns-bing-worms-and-gogs/ | This Week In Security: Footguns, Bing Worms, And Gogs | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks"
] | [
"abandonware",
"Footguns",
"This Week in Security",
"wormable"
] | The world of security research is no stranger to the phenomenon of not-a-vulnerability. That’s where a security researcher finds something interesting, reports it to the project, and it turns out that it’s something other than a real security vulnerability. There are times that this just means a researcher got over-zea... | 5 | 3 | [
{
"comment_id": "8065060",
"author": "macsimski",
"timestamp": "2024-11-22T17:49:22",
"content": "are footguns developed by software sadists? i sometimes have the feeling there is a League of Undercover Sadists with a prominent infiltration of the car and software industry…",
"parent_id": null,
... | 1,760,371,721.075694 | ||
https://hackaday.com/2024/11/22/a-surprisingly-simple-omnidirectional-display/ | A Surprisingly Simple Omnidirectional Display | Danie Conradie | [
"Tech Hacks"
] | [
"LED screen",
"persistance of vision",
"zoetrope"
] | Old-school technology can spark surprising innovations. By combining the vintage zoetrope concept with digital displays, [Mike Ando] created the
Andotrope
, a surprisingly simple omnidirectional display.
Unlike other 3D displays, the Andotrope lets you view a normal 2D video or images that appear identical irrespective... | 37 | 18 | [
{
"comment_id": "8064960",
"author": "ono",
"timestamp": "2024-11-22T12:27:50",
"content": "Nice coffee machine!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8064977",
"author": "Beaker",
"timestamp": "2024-11-22T13:15:06",
"content": "That’s ama... | 1,760,371,720.971135 | ||
https://hackaday.com/2024/11/22/learn-about-robot-arms-by-building-pedro-2-0/ | Learn About Robot Arms By Building Pedro 2.0 | Lewin Day | [
"Robots Hacks"
] | [
"robot arm",
"robots"
] | Whether you’re a kid or a kid at heart, learning about science and engineering can be a lot more fun if it’s
practical.
You could sit around learning about motors and control theory, or you could build a robot arm and play with it. If the latter sounds like your bag of hammers,
you might like Pedro 2.0.
Pedro 2.0 is a ... | 25 | 8 | [
{
"comment_id": "8064974",
"author": "Bob the builder",
"timestamp": "2024-11-22T13:12:51",
"content": "“If you’re new to that acronym”I’m not new to it, just incredibly annoyed by people using it. There is no reason to combine STEM with the A. It was started by the RISD to insult science/tech/engin... | 1,760,371,721.259653 |
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