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https://hackaday.com/2025/04/24/3d-printing-a-useful-fixturing-tool/ | 3D Printing A Useful Fixturing Tool | Lewin Day | [
"Tool Hacks"
] | [
"3d printer",
"3d printing",
"fixture",
"fixturing tool"
] | When you start building lots of something, you’ll know the value of accurate fixturing. [Chris Borge] learned this the hard way on a recent mass-production project, and decided to solve the problem. How? With a custom fixturing tool!
A 3D printed one, of course.
Chris’s build is simple enough. He created 3D-printed wor... | 14 | 8 | [
{
"comment_id": "8121761",
"author": "lightislight",
"timestamp": "2025-04-24T23:14:28",
"content": "Never thought about this, really cool. Great use of plastic, wood, metal, and I guess concrete. The inverted bolt design is really clever.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,371,567.273378 | ||
https://hackaday.com/2025/04/24/onkyo-receiver-saved-with-an-esp32/ | Onkyo Receiver Saved With An ESP32 | Lewin Day | [
"home entertainment hacks"
] | [
"audio receiver",
"ESP32",
"onkyo",
"radio"
] | [Bill Dudley] had a problem. He had an Onkyo AV receiver that did a great job… until it didn’t. A DSP inside failed. When that happened, the main microprocessor running the show decided it wouldn’t play ball without the DSP operational. [Bill] knew the bulk of the audio hardware was still good, it was just the brains t... | 23 | 11 | [
{
"comment_id": "8121739",
"author": "AggregatVier",
"timestamp": "2025-04-24T21:39:35",
"content": "Speaking of vintage, has anyone come up with a replacement for Kenwood 100W amplifier TA100 modules they can confirm working?",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,371,567.072077 | ||
https://hackaday.com/2025/04/24/dolphingemma-seeks-to-speak-to-dolphins/ | DolphinGemma Seeks To Speak To Dolphins | Navarre Bartz | [
"Artificial Intelligence"
] | [
"ai",
"Cetacean",
"dolphin",
"languages",
"LLM",
"marine biology",
"oceanography",
"Wild Dolphin Project"
] | Most people have wished for the ability to talk to other animals at some point, until they realized their cat would mostly insult them and ask for better service, but researchers are getting closer to a
dolphin translator
.
DolphinGemma is an upcoming LLM based on the recordings from the
Wild Dolphin Project
. Using th... | 42 | 14 | [
{
"comment_id": "8121688",
"author": "Stric",
"timestamp": "2025-04-24T18:41:18",
"content": "Man…I wish they started with dogs first :)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8121787",
"author": "Reactive Light",
"timestamp": "2025-0... | 1,760,371,567.412954 | ||
https://hackaday.com/2025/04/24/a-bicycle-is-abandonware-now-clever-hack-rescues-dead-light/ | A Bicycle Is Abandonware Now? Clever Hack Rescues Dead Light | Jenny List | [
"Transportation Hacks"
] | [
"bicycle",
"bike light",
"repair"
] | A bicycle is perhaps one of the most repairable pieces of equipment one can own — no matter what’s wrong with it, and wherever you are on the planet, you’ll be able to find somebody to fix your bike without too much trouble. Unfortunately as electric bikes become more popular, predatory manufacturers are doing everythi... | 75 | 19 | [
{
"comment_id": "8121638",
"author": "Miles",
"timestamp": "2025-04-24T15:38:43",
"content": "The real solution is to explain to manufacturers that we don’t want cloud anything. Even if we would like some cloud functionality it should be optional. If something arrives and requires a cloud, send it... | 1,760,371,567.537998 | ||
https://hackaday.com/2025/04/24/from-postscript-to-pdf/ | From PostScript To PDF | Al Williams | [
"computer hacks",
"Featured",
"History"
] | [
"adobe",
"pdf",
"postscript"
] | There was a time when each and every printer and typesetter had its own quirky language. If you had a wordprocessor from a particular company, it worked with the printers from that company, and that was it. That was the situation in the 1970s when some engineers at Xerox Parc — a great place for innovation but a spotty... | 35 | 18 | [
{
"comment_id": "8121616",
"author": "Joshua",
"timestamp": "2025-04-24T14:34:50",
"content": "“Finally, PostScript allowed device independence.”So did HPGL, the ancient plotter language.It was the predecessor to PDF in several ways, I think.Back in the 80s, you converted your document by printing i... | 1,760,371,567.669547 | ||
https://hackaday.com/2025/04/24/haptic-soft-buttons-speaker-to-your-sense-of-touch/ | Haptic Soft Buttons Speak(er) To Your Sense Of Touch | Tyler August | [
"hardware",
"News"
] | [
"haptic feedback",
"haptic interface",
"touching virtual reality"
] | There’s just something about a satisfying “click” that our world of touchscreens misses out on; the only thing that might be better than a good solid “click” when you hit a button is if device could “click” back in confirmation. [Craig Shultz] and his crew of fine researchers at the Interactive Display Lab at the Unive... | 7 | 4 | [
{
"comment_id": "8121596",
"author": "Daniel",
"timestamp": "2025-04-24T13:03:40",
"content": "Can a button like this be abused as a microphone?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8121610",
"author": "Brian",
"timestamp": "2025-04... | 1,760,371,567.589873 | ||
https://hackaday.com/2025/04/24/the-mohmmeter-a-steampunk-multimeter/ | The Mohmmeter: A Steampunk Multimeter | Matt Varian | [
"Tool Hacks"
] | [
"analog multimeter",
"gift",
"multimeter",
"pi pico",
"steampunk",
"woodworking"
] | [Agatha] sent us this stunning multimeter she built as a gift for her mom. Dubbed the
Mohmmeter
— a playful nod to its ohmmeter function and her mom — this project combines technical ingenuity with heartfelt craftsmanship.
At its core, a Raspberry Pi Pico microcontroller reads the selector knob, controls relays, and li... | 12 | 10 | [
{
"comment_id": "8121572",
"author": "Jan",
"timestamp": "2025-04-24T09:11:49",
"content": "What a nice gift and what a fun project. Really cool!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8121574",
"author": "Michael Gardi",
"timestamp": "2025-04-... | 1,760,371,567.328606 | ||
https://hackaday.com/2025/04/23/c64-assembly-in-parts/ | C64 Assembly In Parts | Al Williams | [
"Retrocomputing",
"Software Development"
] | [
"assembly language",
"commodore 64"
] | [Michal Sapka] wanted to learn a new skill, so he decided on the
Commodore 64 assembly language
. We didn’t say he wanted to learn a new skill that might land him a job. But we get it and even applaud it. Especially since he’s written a multi-part post about what he’s doing and how you can do it, too. So far, there are... | 19 | 6 | [
{
"comment_id": "8121549",
"author": "HaHa",
"timestamp": "2025-04-24T06:34:26",
"content": "6502.It’s called ‘6502 assembly’.I’ll grant C64 was it’s own beast, as they all were, but 6502. (aktually, lower chip count hardware…6510)It’s not a bad processor to start on.Simple.IIRC C64 system had compl... | 1,760,371,567.220852 | ||
https://hackaday.com/2025/04/23/improved-and-open-source-non-planar-infill-for-fdm/ | Improved And Open Source: Non-Planar Infill For FDM | Heidi Ulrich | [
"3d Printer hacks",
"Software Hacks"
] | [
"3d printing",
"Bambu lab",
"bambustudio",
"FDM",
"g-code",
"interlayer",
"orcaslicer",
"post-processing",
"prusa",
"PrusaSlicer",
"python",
"reinforcement",
"sine"
] | Strenghtening FDM prints has been discussed in detail over the last years. Solutions and results vary as each one’s desires differ. Now
[TenTech] shares his latest improvements
on his
post-processing script
that he first created
around January
. This script literally bends your G-code to its will – using non-planar, in... | 16 | 3 | [
{
"comment_id": "8121581",
"author": "strawberrymortallyb0bcea48e7",
"timestamp": "2025-04-24T10:36:14",
"content": "wow, that’s thinking outside the box!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8121601",
"author": "Ben",
"timestamp": "2025-04-2... | 1,760,371,567.837812 | ||
https://hackaday.com/2025/04/23/abusing-duckdb-wasm-to-create-doom-in-sql/ | Abusing DuckDB-WASM To Create Doom In SQL | Maya Posch | [
"Software Development",
"Software Hacks"
] | [
"doom",
"sql"
] | These days you can run Doom anywhere on just about anything, with things like porting Doom to JavaScript these days about as interesting as writing Snake in BASIC on one’s graphical calculator. In a twist, [Patrick Trainer] had the idea to
use SQL instead of JS
to do the heavy lifting of the Doom game loop. Backed by t... | 9 | 6 | [
{
"comment_id": "8121476",
"author": "Jay",
"timestamp": "2025-04-23T23:05:04",
"content": "“Bullets hitting a wall or impacting an enemy result in the bullet and possibly the enemy getting DELETE-ed.” Did Strong Bad write this article?",
"parent_id": null,
"depth": 1,
"replies": []
},... | 1,760,371,567.009085 | ||
https://hackaday.com/2025/04/23/the-evertop-a-low-power-off-grid-solar-gem/ | The Evertop: A Low-Power, Off-Grid Solar Gem | Heidi Ulrich | [
"Battery Hacks",
"computer hacks",
"green hacks",
"hardware",
"laptops hacks"
] | [
"e-ink",
"emulator",
"ESP32",
"IBM xt",
"low power",
"off grid",
"prepping",
"solar",
"solar panel"
] | When was the last time you saw a computer actually outlast your weekend trip – and then some? Enter
the Evertop
, a portable IBM XT emulator powered by an ESP32 that doesn’t just flirt with low power; it basically lives
off the grid
. Designed by [ericjenott], hacker with a love for old-school computing and survivalist... | 32 | 10 | [
{
"comment_id": "8121416",
"author": "tyj5tyjtyjt",
"timestamp": "2025-04-23T20:05:05",
"content": "fuzix.org too?e-ink is not good for terminal ;(but direction is good",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8121556",
"author": "IIVQ",
... | 1,760,371,567.738655 | ||
https://hackaday.com/2025/04/23/floss-weekly-episode-830-vibes/ | FLOSS Weekly Episode 830: Vibes | Jonathan Bennett | [
"Hackaday Columns",
"Podcasts"
] | [
"artificial intelligence",
"FLOSS Weekly",
"vibe coding"
] | This week,
Jonathan Bennett
and
Randal Schwartz
chat with
Allen Firstenberg
about Google’s AI plans, Vibe Coding, and Open AI! What’s the deal with agentic AI, how close are we to
Star Trek
, and where does Open Source fit in? Watch to find out!
https://prisoner.com/
http://spiders.com/
https://js.langchain.com/docs/in... | 4 | 4 | [
{
"comment_id": "8121402",
"author": "BT",
"timestamp": "2025-04-23T19:39:24",
"content": "Hmmm… call me suspicious but only a little talk about locally-run AI and almost nothing about privacy from Google’s friends here.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"commen... | 1,760,371,567.783965 | ||
https://hackaday.com/2025/04/23/open-source-commercial-synthesisers-you-will-love/ | Open Source Commercial Synthesisers You Will Love | Jenny List | [
"Musical Hacks"
] | [
"open sourse",
"synthesiser"
] | Drumboy and Synthgirl from Randomwaves are a a pair of compact electronic instruments, a drum machine and a synthesiser. They are commercial products which were launched on Kickstarter, and if you’re in the market for such a thing you can buy one for yourself. What’s made them of interest to us here at Hackaday though ... | 17 | 6 | [
{
"comment_id": "8121366",
"author": "Zoot",
"timestamp": "2025-04-23T17:17:41",
"content": "Very cool. While I have no need for one or both of these, since I already have a drum machine and I use virtual synths with a MIDI controller, I would think this would be a great addition to someone’s low b... | 1,760,371,567.957435 | ||
https://hackaday.com/2025/04/23/to-see-within-detecting-x-rays/ | To See Within: Detecting X-Rays | Dan Maloney | [
"Engineering",
"Featured",
"History"
] | [
"cadmium",
"emulsion",
"fil",
"fluoroscopy",
"gamma",
"halide",
"radiograph",
"scintigraphy",
"scintillator",
"selecnium",
"Technetium",
"x-ray"
] | It’s amazing how quickly medical science made radiography one of its main diagnostic tools. Medicine had barely emerged from its Dark Age of bloodletting and the four humours when X-rays were discovered, and the realization that the internal structure of our bodies could cast shadows of this mysterious “X-Light” opened... | 19 | 5 | [
{
"comment_id": "8121339",
"author": "Clyde",
"timestamp": "2025-04-23T15:29:57",
"content": "Dental digital X-ray sensors and sources are about $1600 new online (Both the sensor and source are about $800). They seem like the right size and power for electronics use (what’s inside a chip, BGA inspec... | 1,760,371,567.899856 | ||
https://hackaday.com/2025/04/23/unsolved-questions-in-astronomy-try-dark-matter/ | Unsolved Questions In Astronomy? Try Dark Matter! | Tyler August | [
"News",
"Science"
] | [
"astronomy",
"dark matter"
] | Sometimes in fantasy fiction, you don’t want to explain something that seems inexplicable, so you throw your hands up and say, “A wizard did it.” Sometimes in astronomy, instead of a wizard, the answer is dark matter (DM). If you are interested in astronomy, you’ve probably heard that dark matter solves the problem of ... | 21 | 7 | [
{
"comment_id": "8121306",
"author": "Paul",
"timestamp": "2025-04-23T13:20:08",
"content": "There always seems to be a bit ofdeus ex machinawhen people bring dark matter into the discussion. It’s reminiscent of the Luminiferous Aether theory of the 19th century. It’s going to be interesting to s... | 1,760,371,568.776833 | ||
https://hackaday.com/2025/04/23/a-scratch-built-commodore-64-turing-style/ | A Scratch-Built Commodore 64, Turing Style | Dan Maloney | [
"Retrocomputing"
] | [
"6502",
"6510",
"c64",
"commodore 64",
"eprom",
"finite state machine",
"sid",
"sram",
"turing",
"VIC"
] | Building a Commodore 64 is among the easier projects for retrocomputing fans to tackle. That’s because the C64’s core chipset does most of the heavy lifting; source those and you’re probably 80% of the way there. But what if you can’t find those chips, or if you want more of a challenge than plugging and chugging? Are ... | 18 | 9 | [
{
"comment_id": "8121266",
"author": "evelynmartin3022",
"timestamp": "2025-04-23T10:20:34",
"content": "Awesome project. Love seeing retro tech brought to life with pure creativity and modern components, excited for the next part in the series.",
"parent_id": null,
"depth": 1,
"replies"... | 1,760,371,568.511533 | ||
https://hackaday.com/2025/04/22/virtual-nodes-real-waves-a-colpitts-walkthrough/ | Virtual Nodes, Real Waves: A Colpitts Walkthrough | Heidi Ulrich | [
"News",
"Science",
"Software Hacks",
"Tool Hacks"
] | [
"digital",
"multisim",
"nodes",
"oscilloscope",
"simulation",
"sine",
"sine wave",
"sinus",
"virtual space",
"waveform"
] | If you’ve ever fumbled through circuit simulation and ended up with a flatline instead of a sine wave,
this video from [saisri]
might just be the fix. In this walkthrough she demonstrates simulating a
Colpitts oscillator
using
NI Multisim
14.3 – a deceptively simple analog circuit known for generating stable sine waves... | 14 | 5 | [
{
"comment_id": "8121225",
"author": "MinorHavoc",
"timestamp": "2025-04-23T05:59:52",
"content": "Video seems lacking as an instructional video. It’s mostly a recording of her performing the exercise in Multisim, but she doesn’t actually walk you through it nor explain much as she does it.She says... | 1,760,371,568.308067 | ||
https://hackaday.com/2025/04/22/how-supercritical-co2-working-fluid-can-increase-power-plant-efficiency/ | How Supercritical CO2 Working Fluid Can Increase Power Plant Efficiency | Maya Posch | [
"Science"
] | [
"power turbine",
"steam generator"
] | Using steam to produce electricity or perform work via steam turbines has been a thing for a very long time. Today it is still exceedingly common to use steam in this manner, with said steam generated either by burning something (e.g. coal, wood), by using spicy rocks (nuclear fission) or from stored thermal energy (e.... | 42 | 6 | [
{
"comment_id": "8121193",
"author": "Ostracus",
"timestamp": "2025-04-23T02:24:21",
"content": "Must have read my mind. The comments to that video are interesting as well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8121210",
"author": "steelman",
... | 1,760,371,568.68834 | ||
https://hackaday.com/2025/04/22/eink-pda-revisited/ | EInk PDA Revisited | Fenix Guthrie | [
"handhelds hacks"
] | [
"3d printed keyboard",
"ESP32",
"pda",
"PDA hack"
] | In the dark ages, before iOS and Android phones became ubiquitous, there was the PDA. These handheld computers acted as simple companions to a computer and could often handle calendars, email, notes and more. Their demise was spelled by the smartphone, but the nostalgia of having a simple handheld and romanticizing abo... | 23 | 8 | [
{
"comment_id": "8121168",
"author": "Greg A",
"timestamp": "2025-04-22T23:53:57",
"content": "man i miss apps that would start immediately. this just makes me think of palmos.it’s a real frustration that i want a lot of features that require immense complexity (like a web browser, tcp/ip, a deeply... | 1,760,371,568.572401 | ||
https://hackaday.com/2025/04/22/diy-record-cutting-lathe-is-really-groovy/ | DIY Record Cutting Lathe Is Really Groovy | Tyler August | [
"cnc hacks"
] | [
"audio",
"record cutter",
"sound hifi",
"vinyl lathe",
"Vinyl Record"
] | Back in the day, one of the few reasons to prefer compact cassette tape to vinyl was the fact you could record it at home in very good fidelity. Sure, if you had the scratch, you could go out and get a small batch of records made from that tape, but the machinery to do it was expensive and not always easy to come by, d... | 12 | 5 | [
{
"comment_id": "8121138",
"author": "irox",
"timestamp": "2025-04-22T21:38:03",
"content": "I’ve heard to can record on to acetate sheets. The resulting records will only play a few times before they get worn out, but they are cheaper than vinyl blanks and work great if you just need a record for a... | 1,760,371,568.363261 | ||
https://hackaday.com/2025/04/22/british-wartime-periscope-a-peek-into-the-past/ | British Wartime Periscope: A Peek Into The Past | Heidi Ulrich | [
"classic hacks",
"Teardown"
] | [
"cold war",
"imperial",
"MIL-SPEC",
"military",
"night vision",
"periscope",
"photo amplifier",
"relic",
"vintage"
] | We all know periscopes serve for observation where there’s no direct line-of-sight, but did you know they can allow you to peer through history? That’s
what [msylvain59] documented
when he picked up a British military night vision periscope, snagged from a German surplus shop for just 49 euros. Despite its Cold War vi... | 4 | 4 | [
{
"comment_id": "8121111",
"author": "I Alone Possess The Truth",
"timestamp": "2025-04-22T20:10:13",
"content": "See, what needs to be done is tear the guts out and put in an ESP332 and Raspberry Pie with SDR to access automated music broadcasts!Seriously, what a cool thing to be able to explore a... | 1,760,371,568.611003 | ||
https://hackaday.com/2025/04/22/game-boy-pcb-assembled-with-low-cost-tools/ | Game Boy PCB Assembled With Low-Cost Tools | Bryan Cockfield | [
"Tool Hacks"
] | [
"game boy",
"hot plate",
"pinecil",
"rp2350b",
"surface mount",
"tools"
] | As computers have gotten smaller and less expensive over the years, so have their components. While many of us got our start in the age of through-hole PCBs, this size reduction has led to more and more projects that need the use of surface-mount components and their unique set of tools. These tools tend to be more ela... | 13 | 2 | [
{
"comment_id": "8121087",
"author": "Sjaak",
"timestamp": "2025-04-22T18:54:31",
"content": "Looks like the display says ‘SHIT’ there, later realize it is prolly ‘SHUT’Love the coloring of the display on this ‘original’ gameboy.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,371,568.836429 | ||
https://hackaday.com/2025/04/22/why-physical-media-deserved-to-die/ | Why Physical Media Deserved To Die | Maya Posch | [
"Current Events",
"Featured",
"Original Art"
] | [
"audio cassette",
"physical media",
"vinyl records"
] | Over the course of more than a decade, physical media has gradually vanished from public view. Once computers had an optical drive except for ultrabooks, but these days computer cases that even support an internal optical drive are rare. Rather than manuals and drivers included on a data CD you now get a QR code for an... | 136 | 50 | [
{
"comment_id": "8120947",
"author": "CJay",
"timestamp": "2025-04-22T14:16:25",
"content": "For me, it’s owning a copy of (licensed, I know) media that can’t easily be revoked obsoleted or somehow made useless to me. I’m sick of having to continually pay or lose access.",
"parent_id": null,
... | 1,760,371,569.017077 | ||
https://hackaday.com/2025/04/22/whats-sixty-feet-across-and-superconducting/ | What’s Sixty Feet Across And Superconducting? | Tyler August | [
"News",
"Science"
] | [
"Fusion power",
"fusion reactor",
"nuclear fusion",
"tokamak"
] | What’s sixty feet (18.29 meters for the rest of the world) across and superconducting?
The International Thermonuclear Experimental Reactor (ITER)
, and probably not much else.
The last parts of the central solenoid assembly have finally made their way to France from the United States, making both a milestone in the sl... | 54 | 15 | [
{
"comment_id": "8120909",
"author": "sweethack",
"timestamp": "2025-04-22T12:10:58",
"content": "The unit mangling in your article is just not fun, it’s dumb. No one measure weight in F-150 (since there are multiple version of the vehicle). So stick with a measurement system and keep it during the ... | 1,760,371,569.115605 | ||
https://hackaday.com/2025/04/22/making-a-one-of-a-kind-lime2-sbc/ | Making A One-Of-A-Kind Lime2 SBC | Matt Varian | [
"hardware"
] | [
"BGA soldering",
"ram",
"SBC",
"u-boot"
] | Upgrading RAM on most computers is often quite a straightforward task: look up the supported modules, purchase them, push a couple of levers, remove the old, and install the new. However, this project
submitted by [Mads Chr. Olesen]
is anything but a simple.
In this project, he sets out to double the RAM on a Olimex A2... | 5 | 2 | [
{
"comment_id": "8121147",
"author": "asheets",
"timestamp": "2025-04-22T22:18:45",
"content": "I’m impressed by the work, but would like to know the use case.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8121162",
"author": "ThoriumBR",
"t... | 1,760,371,569.166798 | ||
https://hackaday.com/2025/04/21/pox-super-fast-graphene-based-flash-memory/ | PoX: Super-Fast Graphene-Based Flash Memory | Maya Posch | [
"Science"
] | [
"flash memory"
] | Recently a team at Fudan University
claimed to have developed
a picosecond-level Flash memory device (called ‘PoX’) that has an access time of a mere 400 picoseconds. This is significantly faster than the millisecond level access times of NAND Flash memory, and more in the ballpark of DRAM, while still being non-volati... | 15 | 6 | [
{
"comment_id": "8120822",
"author": "MinorHavoc",
"timestamp": "2025-04-22T06:23:38",
"content": "Fundamental research and experimental results like this are critical for developing the technology of the future, if it’s replicable. Unfortunately, not all positive results in a lab will lead to comm... | 1,760,371,569.236867 | ||
https://hackaday.com/2025/04/21/jolly-wrencher-down-to-the-micron/ | Jolly Wrencher Down To The Micron | Ian Bos | [
"3d Printer hacks"
] | [
"3d printer",
"3D resin printer",
"jolly wrencher",
"microreprap",
"reprap"
] | RepRap was the origin of pushing hobby 3D printing boundaries, and here we see a RepRap scaled down to the smallest detail.
[Vik Olliver] over at the RepRap blog
has been working on getting a printer working printing down to the level of micron accuracy.
The printer is constructed using 3D printed flexures similar to t... | 6 | 4 | [
{
"comment_id": "8120775",
"author": "notmyfault2000",
"timestamp": "2025-04-22T01:14:51",
"content": "At micron scale, it might be interesting for hobbyists, to print photoresist onto wafers. Not as efficient as lithography but probably a whole lot easier to set up more than one machine…",
"par... | 1,760,371,569.330221 | ||
https://hackaday.com/2025/04/21/trekulator-a-reproduction-of-the-1977-star-trek-themed-calculator/ | Trekulator: A Reproduction Of The 1977Star TrekThemed Calculator | John Elliot V | [
"Arduino Hacks",
"LED Hacks",
"Retrocomputing"
] | [
"3d printed",
"calculator",
"ESP32",
"star trek",
"Trekulator"
] | A recent project over on Hackaday.io from [Michael Gardi] is
Trekulator – Where No Maker Has Gone Before
.
This is a fun build and [Michael] has done a very good job of emulating
the original device
. [Michael] used the Hackaday.io logging feature to
log his progress
. Starting in September 2024 he modeled the case, go... | 9 | 4 | [
{
"comment_id": "8120709",
"author": "zxm",
"timestamp": "2025-04-21T20:08:54",
"content": "i wonder if someone removed the speaker to stop the calculator making noise. at first it would be a novelty but it would quickly get annoying i suspect.",
"parent_id": null,
"depth": 1,
"replies":... | 1,760,371,569.284478 | ||
https://hackaday.com/2025/04/21/remembering-ucsd-p-system-the-pascal-virtual-machine/ | Remembering UCSD P-System, The Pascal Virtual Machine | Maya Posch | [
"Retrocomputing"
] | [
"Pascal",
"ucsd"
] | Long before the Java Virtual Machine (JVM) was said to take the world by storm, the p-System (pseudo-system, or virtual machine) developed at the University of California, San Diego (UCSD) provided a cross-platform environment for the UCSD’s Pascal dialect. Later on, additional languages would also be made available f... | 23 | 14 | [
{
"comment_id": "8120667",
"author": "Jan Prägert",
"timestamp": "2025-04-21T18:36:21",
"content": "There is a song about that.https://www.youtube.com/watch?v=660ZCEhvbnw",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8120691",
"author": "_sol_",
... | 1,760,371,569.394043 | ||
https://hackaday.com/2025/04/21/keebin-with-kristina-the-one-with-the-part-picker/ | Keebin’ With Kristina: The One With The Part Picker | Kristina Panos | [
"Hackaday Columns",
"Peripherals Hacks",
"Slider"
] | [
"bachelor pad",
"IBM Selectric Composer",
"keyboard part picker",
"Kinesis Advantage",
"spacemouse"
] | If you do a lot of 3D computer work, I hear a Spacemouse is indispensable. So
why not build a keyboard around it and make it a mouse-cropad?
Image by [DethKlawMiniatures] via
reddit
That’s exactly what [DethKlawMiniatures] did with theirs. This baby is built with mild steel for the frame, along with some 3D-printed spa... | 4 | 3 | [
{
"comment_id": "8120726",
"author": "macsimski",
"timestamp": "2025-04-21T21:15:14",
"content": "did I mention the Varityper 1010 to you? i think the same mechanics for justifying a column of text by counting the spaces between words in the first run and adjusting accordingly in the second to justi... | 1,760,371,569.532222 | ||
https://hackaday.com/2025/04/21/restoration-of-six-player-arcade-game-from-the-early-90s/ | Restoration Of Six-Player Arcade Game From The Early 90s | Bryan Cockfield | [
"Games",
"Retrocomputing"
] | [
"galaxian",
"hardware",
"laserdisc",
"namco",
"restoration",
"retrocomputing",
"video game"
] | Although the video game crash of the mid-80s caused a major decline in arcades from their peak popularity, the industry didn’t completely die off. In fact, there was a revival that lasted until the 90s with plenty of companies like Capcom, Midway, SEGA, and Konami all competing to get quarters, francs, loonies, yen, an... | 9 | 6 | [
{
"comment_id": "8120632",
"author": "asheets",
"timestamp": "2025-04-21T17:09:57",
"content": "I’d be interested in knowing a bit more about imaging LaserDiscs to modern storage. Probably a bit more complicated than using “dd”, but I wouldn’t know how to go about performing the work…",
"parent... | 1,760,371,569.712543 | ||
https://hackaday.com/2025/04/20/low-cost-oscilloscope-gets-low-cost-upgrades/ | Low Cost Oscilloscope Gets Low Cost Upgrades | Bryan Cockfield | [
"News",
"Tool Hacks"
] | [
"adc",
"filter",
"low cost",
"low-pass",
"noise",
"oscilloscope",
"tool",
"upgrade"
] | Entry-level oscilloscopes are a great way to get some low-cost instrumentation on a test bench, whether it’s for a garage lab or a schoolroom. But the cheapest ones are often cheap for a reason, and even though they work well for the price they won’t stand up to more advanced equipment. But missing features don’t have ... | 51 | 16 | [
{
"comment_id": "8120277",
"author": "fdufnews",
"timestamp": "2025-04-20T14:09:20",
"content": "You said: “Presumably, you could apply these techniques to other inexpensive equipment, like this even cheaper oscilloscope based on the ESP32.”But, in that case it is an STM32",
"parent_id": null,
... | 1,760,371,569.866227 | ||
https://hackaday.com/2025/04/20/building-a-custom-zynq-7000-soc-development-board-from-the-ground-up/ | Building A Custom Zynq-7000 SoC Development Board From The Ground Up | John Elliot V | [
"ARM",
"FPGA",
"hardware",
"PCB Hacks"
] | [
"AMD Zynq-7000 SoC",
"arm",
"fpga board"
] | In this series of 23 YouTube videos [Rich]
puts the AMD Zynq-7000 SoC through its paces
by building a development board from the ground up to host it along with its peripherals. The Zynq is part FPGA and part CPU, and while it has been around for a while, we don’t see nearly as many projects about it as we’d like.
[Ric... | 8 | 3 | [
{
"comment_id": "8120270",
"author": "shinsukke",
"timestamp": "2025-04-20T13:25:22",
"content": "I would like to make an FPGA board as well but sadly I do not have anything in mind that would require an FPGA",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "81... | 1,760,371,569.660428 | ||
https://hackaday.com/2025/04/20/non-planar-slicing-is-for-the-birds/ | Non-planar Slicing Is For The Birds | Tyler August | [
"3d Printer hacks"
] | [
"3d model slicing",
"non-planar 3D printing",
"non-planar layer FDM",
"non-planar slicer"
] | When we say non-planar slicing is for the birds, we mean [Joshua Bird], who demonstrates the versatility of his new
non-planar S4-Slicer
by printing a Benchy upside down with the
“Core R-Theta” printer we have featured here before.
S4 slicer uses the path from any point (here, Benchy’s prow) as its basis…
This non-plan... | 15 | 10 | [
{
"comment_id": "8120194",
"author": "helge",
"timestamp": "2025-04-20T09:02:31",
"content": "Printing of flat layers has proven tricky enough to get working in a consistent manner, so I take it the error will only increase as we move to coupled motion, making a non-planar ironing pass ever more imp... | 1,760,371,569.773676 | ||
https://hackaday.com/2025/04/19/rockbox-4-0-released/ | Rockbox 4.0 Released | John Elliot V | [
"Musical Hacks",
"Portable Audio Hacks",
"Software Hacks"
] | [
"digital audio",
"mp3 player",
"personal media player",
"Rockbox"
] | It’s traditional to launch new software on April Fool’s Day, which is when we heard that
Rockbox 4.0 has been released
. But, in this case, the venerable MP3 firmware actually did update after a long absence. It’s great to see that good old
Rockbox
is still kicking along. We
first mentioned Rockbox
here at Hackaday app... | 24 | 17 | [
{
"comment_id": "8120152",
"author": "Ratus",
"timestamp": "2025-04-20T05:18:42",
"content": "Nice!I’ve been using Rockbox since the beginning with an Archos v2 and then a bunch of Sansa players.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8120160",
"au... | 1,760,371,569.931176 | ||
https://hackaday.com/2025/04/19/frankenflair-58-manual-roots-advanced-brew/ | Frankenflair 58: Manual Roots, Advanced Brew | Matt Varian | [
"Tool Hacks"
] | [
"coffee machine",
"coffee maker hack",
"espresso machine",
"pcb",
"pid"
] | The user interface of things we deal with often makes or breaks our enjoyment of using a device. [Janne] thinks so, he has an espresso machine he enjoys but the default controls were not what he was looking for and so in true hacker fashion he
took what was and made it his own
.
This Kickstarter-born Flair 58 is a manu... | 2 | 2 | [
{
"comment_id": "8120326",
"author": "Adrian",
"timestamp": "2025-04-20T16:30:53",
"content": "Great project and excellent documentation with beautiful detail shots. The only thing missing is a picture showing the complete espresso machine as it’s hard to visualize how this all fits together. Having... | 1,760,371,569.97062 | ||
https://hackaday.com/2025/04/19/chinas-tmsr-lf1-molten-salt-thorium-reactor-begins-live-refueling-operations/ | China’s TMSR-LF1 Molten Salt Thorium Reactor Begins Live Refueling Operations | Maya Posch | [
"News",
"Science"
] | [
"nuclear fission",
"thorium"
] | Although uranium-235 is the typical fuel for commercial fission reactors on account of it being fissile, it’s relatively rare relative to the fertile U-238 and thorium (Th-232). Using either of these fertile isotopes to breed new fuel from is thus an attractive proposition. Despite this, only India and China have a str... | 33 | 9 | [
{
"comment_id": "8120085",
"author": "paulvdh",
"timestamp": "2025-04-19T23:33:02",
"content": "Thorium seems to be quite promising. From what I’ve gathered (mostly from youtube), the reason to use Uranium was chosen long ago because it can produce stuff to make bombs, and that was a big thing 50 ye... | 1,760,371,570.084243 | ||
https://hackaday.com/2025/04/19/they-hacked-a-nuclear-power-plant-whoops-dont-make-a-sound/ | They Hacked A Nuclear Power Plant! Whoops! Don’t Make A Sound! | John Elliot V | [
"Science"
] | [
"Acoustical Testing",
"Nuclear Power Plant",
"NWAA Labs"
] | What do you do with an unused nuclear reactor project? In Washington,
one of them was hacked to remove sound
, all in the name of science.
In 1977, a little way outside of Seattle, Washington Nuclear Projects 3 and 5 (WNP-3 and WNP-5) were started as part of Washington Public Power Supply System (WPPSS, pronounced “who... | 3 | 2 | [
{
"comment_id": "8120332",
"author": "TheOnceAndFutureThingy",
"timestamp": "2025-04-20T16:59:48",
"content": "NGL, I was hoping for something with a less happy ending…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8120704",
"author": "Rick",
... | 1,760,371,570.009116 | ||
https://hackaday.com/2025/04/21/biasing-transistors-with-current-sources/ | Biasing Transistors With Current Sources | John Elliot V | [
"hardware",
"Parts"
] | [
"amplifiers",
"bipolar junction transistor",
"current mirror",
"current source"
] | Over on his YouTube channel [Aaron Danner] explains
biasing transistors with current sources
in the 29th video of his
Transistors Series
. In this video, he shows how to replace a bias resistor (and consequently an additional capacitor) with a current source for both common-emitter and common-collector amplifiers.
A cu... | 3 | 2 | [
{
"comment_id": "8120759",
"author": "Pat",
"timestamp": "2025-04-21T23:27:49",
"content": "Current sources (or any other form of active bias) also can save atonof power vs a manufacturer recommended circuit. RF amps frequently have recommended supply voltages way higher than needed because of the d... | 1,760,371,570.128789 | ||
https://hackaday.com/2025/04/21/printed-perpetual-calendar-clock-contains-clever-cams/ | Printed Perpetual Calendar Clock Contains Clever Cams | Tyler August | [
"clock hacks"
] | [
"3d print",
"3D printed clock",
"clock",
"electromechanical clock",
"perpetual calendar"
] | At Hackaday, it is
always
clock time, and clock time is a great time to check in with [shiura], whose
3D Printed Perpetual Calendar Clock is now at Version 2.
A 3D printed calendar clock, well, no big deal, right? Grab a few steppers, slap in an ESP32 to connect to a time server, and you’re good. That’s where most of u... | 11 | 3 | [
{
"comment_id": "8120548",
"author": "Lennart",
"timestamp": "2025-04-21T12:48:16",
"content": "It okay that it can’t handle the non-leap year 2100!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8120605",
"author": "IsRadioKill",
"timestamp"... | 1,760,371,570.182651 | ||
https://hackaday.com/2025/04/20/preventing-galvanic-corrosion-in-water-cooling-loops/ | Preventing Galvanic Corrosion In Water Cooling Loops | Maya Posch | [
"Science"
] | [
"galvanic corrosion",
"galvanic series"
] | Water is an excellent coolant, but the flip side is that it is also an excellent solvent. This, in short, is why any water cooling loop is also a prime candidate for an interesting introduction to the galvanic metal series, resulting in severe corrosion that commences immediately. In a
recent video
by [der8aer], this i... | 50 | 12 | [
{
"comment_id": "8120498",
"author": "moo",
"timestamp": "2025-04-21T06:39:16",
"content": "can’t you just drop a block of zinc in the reservoir or something?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8120578",
"author": "Suppressed Carrier",
... | 1,760,371,570.277958 | ||
https://hackaday.com/2025/04/20/china-hosts-robot-marathon/ | China Hosts Robot Marathon | Al Williams | [
"News",
"Robots Hacks"
] | [
"marathon",
"robot"
] | China played host to what, presumably, was the world’s first
robot and human half-marathon
. You can check out the action and the Tiangong Ultra robot that won in the video below. The event took place in Beijing and spanned 21.1 km. There was, however, a barrier between lanes for humans and machines.
The human rules we... | 11 | 8 | [
{
"comment_id": "8120461",
"author": "Als",
"timestamp": "2025-04-21T04:02:45",
"content": "the robot looks like it has to take a #2 soon",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8120509",
"author": "shinsukke",
"timestamp": "2025-04-21... | 1,760,371,570.379596 | ||
https://hackaday.com/2025/04/20/hackaday-links-april-20-2025/ | Hackaday Links: April 20, 2025 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links",
"Slider"
] | [
"antikythera",
"biosignature",
"citation",
"crosswalk",
"deep-fake",
"DMDS",
"DMS",
"exoplanet",
"gear",
"hackaday links",
"James Webb",
"jwst",
"K2-18b",
"Kepler",
"Musk",
"Palo Alto",
"scientific fraud",
"silicon valley",
"tooth",
"vegetative electron microscopy",
"Zuckerbe... | We appear to be edging ever closer to a solid statement of “We are not alone” in the universe with this week’s announcement of
the detection of biosignatures
in the atmosphere of exoplanet K2-18b. The planet, which is 124 light-years away, has been the focus of much attention since it was discovered in 2015 using the K... | 8 | 4 | [
{
"comment_id": "8120424",
"author": "College cynic",
"timestamp": "2025-04-20T23:24:00",
"content": "Garbage papers have remained a problem long before artificial stupidity. As long as there’s been university faculty with quotas, there’s been useless fluff papers at their least unethical, to downri... | 1,760,371,570.33035 | ||
https://hackaday.com/2025/04/20/milliforth-6502-a-forth-for-the-6502-cpu/ | MilliForth-6502, A Forth For The 6502 CPU | John Elliot V | [
"Retrocomputing",
"Software Hacks"
] | [
"6502",
"forth",
"milliForth",
"sectorforth"
] | Forth is popular on small computers because it is simple to implement, yet quite powerful. But what happens when you really need to shrink it? Well, if your target is the 6502, there’s
milliForth-6502
.
This is a port of
milliForth
, which is a fork of sectorforth. The sectorforth project set the standard, implementing... | 41 | 17 | [
{
"comment_id": "8120375",
"author": "Wallace Owen",
"timestamp": "2025-04-20T20:29:39",
"content": "Didn’t fig forth have a port to the 6502?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8120386",
"author": "Garth Wilson",
"timestamp": "20... | 1,760,371,570.481777 | ||
https://hackaday.com/2025/04/20/the-most-printable-3d-printer-yet/ | The Most Printable 3D Printer Yet | Aaron Beckendorf | [
"3d Printer hacks"
] | [
"3D printed motor",
"3d printer",
"brushed motor",
"self-replicating"
] | Despite the best efforts of the RepRap community over the last twenty years, self-replicating 3D printers have remained a stubbornly elusive goal, largely due to the difficulty of printing electronics. [Brian Minnick]’s
fully-printed 3D printer
could eventually change that, and he’s already solved an impressive number ... | 17 | 7 | [
{
"comment_id": "8120358",
"author": "Dude",
"timestamp": "2025-04-20T19:15:19",
"content": "Brushed motors are less accurate than stepper motors, but they do have a particularly useful advantage here: their speed can be controlled simply by varying the voltage.Rather, it’s limited – not controlled.... | 1,760,371,570.702061 | ||
https://hackaday.com/2025/04/18/a-pi-based-lidar-scanner/ | A Pi-Based LiDAR Scanner | Bryan Cockfield | [
"Laser Hacks"
] | [
"2d visualization",
"3d scanning",
"camera",
"ldrobot",
"lidar",
"raspberry pi",
"vertex color"
] | Although there are plenty of methods for effectively imaging a 3D space, LIDAR is widely regarded as one of the most effective methods. These systems use a rapid succession of laser pulses over a wide area to create an accurate 3D map. Early LIDAR systems were cumbersome and expensive but as the march of time continues... | 30 | 5 | [
{
"comment_id": "8119806",
"author": "Cyna",
"timestamp": "2025-04-18T21:14:12",
"content": "First suggestion: Use a newer Trinamic driver (like TMC220x) instead of the older, very noisy A4988.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8119811",
"auth... | 1,760,371,570.651593 | ||
https://hackaday.com/2025/04/18/vintage-game-rides-again-thanks-to-modern-tech/ | Vintage Game Rides Again Thanks To Modern Tech | Dan Maloney | [
"Toy Hacks"
] | [
"RACE",
"reproduction",
"steel",
"tin",
"vintage"
] | You have to admire the lengths designers went to back in the day to create engaging games and toys. One particularly clever game of this type was called GEE-WIZ, a horse racing game from the 1920s that seems like it might have been right at home at a bar or pub, and that caught [Michael Gardi]’s imagination enough that... | 4 | 3 | [
{
"comment_id": "8119776",
"author": "DavidO",
"timestamp": "2025-04-18T19:05:53",
"content": "Wonderful! Pocket-sized “Triplets of Belleville” Mafia machine:-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8119803",
"author": "Michael Gardi",
"timest... | 1,760,371,570.744661 | ||
https://hackaday.com/2025/04/18/hackaday-podcast-episode-317-quantum-diamonds-citizen-science-and-cobol-to-ai/ | Hackaday Podcast Episode 317: Quantum Diamonds, Citizen Science, And Cobol To AI | Al Williams | [
"Hackaday Columns",
"Podcasts",
"Slider"
] | [
"Hackaday Podcast"
] | When Hackaday editors Elliot Williams and Al Williams need a break from writing posts, they hop on the podcast and talk about their favorite stories of the past week. Want to know what they were talking about? Listen in below and find out!
In an unusual twist, a listener sent in the sound for this week’s What’s This So... | 1 | 1 | [
{
"comment_id": "8120699",
"author": "joost (Yohst)",
"timestamp": "2025-04-21T19:49:29",
"content": "Nice episode – as always. But this time, I must protest – yep I do. AI (pick your favorite) not good for much programming as implied by your discussion is far from the truth. I have my own little c... | 1,760,371,570.783943 | ||
https://hackaday.com/2025/04/18/presence-detection-augments-1930s-home/ | Presence Detection Augments 1930s Home | Bryan Cockfield | [
"home hacks",
"Parts"
] | [
"home automation",
"light switch",
"mmwave",
"presence detection",
"radar",
"sensor",
"smart home"
] | It can be jarring to see various sensors, smart switches, cameras, and other technology in a house built in the 1930s, like [Chris]’s was. But he still wanted presence detection so as to not stub any toes in the dark.
The result is a sensor that blends in with the home’s aesthetics
a bit better than anything you’re lik... | 18 | 7 | [
{
"comment_id": "8119734",
"author": "Jade",
"timestamp": "2025-04-18T15:48:45",
"content": "It looks like he mounted one of those little spider eye diffusers over the mmwave module. Does that affect the reception at all? I’ve been setting up some of these recently and the detection range is very fi... | 1,760,371,570.843008 | ||
https://hackaday.com/2025/04/18/this-week-in-security-no-more-cves-4chan-and-recall-returns/ | This Week In Security: No More CVEs, 4chan, And Recall Returns | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks",
"Slider"
] | [
"CVEs",
"mitre",
"recall",
"This Week in Security",
"Vibes"
] | The sky is falling. Or more specifically, it was about to fall, according to the security community this week. The MITRE Corporation came within a hair’s breadth of
running out of its contract to maintain the CVE database
. And admittedly, it would be a bad thing if we suddenly lost updates to the central CVE database.... | 7 | 5 | [
{
"comment_id": "8119710",
"author": "Not-Q",
"timestamp": "2025-04-18T14:58:39",
"content": "I’ve been poking around about the 4chan hack and found no answer , so I’ll toss it out here: Did they doxx Q? As much as I hate doxxing on principle, I am more than willing to indulge in some bald faced hyp... | 1,760,371,570.891219 | ||
https://hackaday.com/2025/04/18/d20-shaped-quasicrystal-makes-high-strength-alloy-printable/ | D20-shaped Quasicrystal Makes High-Strength Alloy Printable | Tyler August | [
"Science"
] | [
"3d printed metal",
"crystallography",
"materials science",
"quasicrystal"
] | When is a crystal not a crystal? When it’s a
quasi-crystal, a paradoxical form of metal recently found in some 3D printed metal alloys
by [A.D. Iams et al] at the American National Institute for Standards and Technology (NIST).
As you might remember from chemistry class, crystals are made up of blocks of atoms (usually... | 7 | 3 | [
{
"comment_id": "8119691",
"author": "Dan",
"timestamp": "2025-04-18T13:46:40",
"content": "“Other high strength-alloys tended to be very prone to cracking, to the point of usability”Not quite sure what this means or if I’m being slow or its a typo… Should that be “to the point of unusability”? Or ... | 1,760,371,572.647205 | ||
https://hackaday.com/2025/04/18/track-your-circuits-a-locomotive-pcb-badge/ | Track Your Circuits: A Locomotive PCB Badge | Matt Varian | [
"PCB Hacks"
] | [
"ATmega32",
"badge",
"charlieplexing",
"pcb",
"train"
] | This fun PCB from [Nick Brown] features a miniature railroad implemented with 0805-sized LEDs. With an eye towards designing his own
fun interactive PCB badge
, the Light-Rail began its journey. He thoroughly documented his process, from shunting various late-night ideas together to tracking down discrepancies between ... | 7 | 5 | [
{
"comment_id": "8119697",
"author": "rnjacobs",
"timestamp": "2025-04-18T14:05:24",
"content": "This fills me with joy",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8119743",
"author": "KenN",
"timestamp": "2025-04-18T16:07:50",
"co... | 1,760,371,572.59658 | ||
https://hackaday.com/2025/04/19/hydroplaning-rc-jet-boat-steers-clear-of-convention/ | Hydroplaning RC Jet Boat Steers Clear Of Convention | Seth Mabbott | [
"Transportation Hacks"
] | [
"hydroplane",
"jet boat",
"rc boat"
] | [CovaConcepts], who has a background in motorsports, has been busy designing an
unconventional radio-controlled watercraft she calls the HydraJet
.
There are two key design decisions that make the HydraJet what it is. First, she chose to propel the boat by pushing against the air via an electric ducted fan (EDF) rather... | 19 | 12 | [
{
"comment_id": "8120031",
"author": "Kenneth Welles",
"timestamp": "2025-04-19T17:32:14",
"content": "This is brilliant! Would love to know:Mass of boattop speedwattage at top speed",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8120034",
"author": "capt... | 1,760,371,572.885065 | ||
https://hackaday.com/2025/04/19/vibing-ai-style/ | Vibing, AI Style | Elliot Williams | [
"Hackaday Columns",
"Rants",
"Slider",
"Software Hacks"
] | [
"ai",
"LLM",
"programming",
"vibe coding"
] | This week, the hackerverse was full of “
vibe coding
”. If you’re not caught up on your AI buzzwords, this is the catchy name coined by [Andrej Karpathy] that refers to
basically just YOLOing it with AI coding assistants
. It’s the AI-fueled version of typing in what you want to StackOverflow and picking the top answer... | 48 | 12 | [
{
"comment_id": "8119997",
"author": "thatkat",
"timestamp": "2025-04-19T14:48:31",
"content": "“Vibe coding” is for losers.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8120080",
"author": "Narcolapser",
"timestamp": "2025-04-19T22:50:09",... | 1,760,371,573.03201 | ||
https://hackaday.com/2025/04/19/will-it-run-llama-2-now-dos-can/ | Will It Run Llama 2? Now DOS Can | Tyler August | [
"Artificial Intelligence",
"Retrocomputing"
] | [
"ai",
"dos 6.22",
"i386",
"llama.2c",
"LLM",
"retrocomputing"
] | Will a 486 run
Crysis
? No, of course not. Will it run a large language model (LLM)? Given the huge buildout of compute power to do just that, many people would scoff at the very notion. But [Yeo Kheng Meng]
is not many people.
He has set up various DOS computers to run a stripped down version of the
Llama 2 LLM, origi... | 21 | 6 | [
{
"comment_id": "8119977",
"author": "Joshua",
"timestamp": "2025-04-19T13:30:43",
"content": "In principle, it would also be possible to use an 64-Bit DOS Extender and run it on an AMD Athlon 64 or similar PC.i386 aka x86_32 architecture has the conveniance of V86, but it’s not required.Concurrent ... | 1,760,371,573.102694 | ||
https://hackaday.com/2025/04/19/open-source-dmr-radio/ | Open Source DMR Radio | Al Williams | [
"Radio Hacks"
] | [
"codec2",
"dmr",
"ham radio"
] | While ham radio operators have been embracing digital mobile radio (DMR), the equipment is most often bought since — at least in early incarnations — it needs a proprietary CODEC to convert speech to digital and vice versa. But [QRadioLink] decided to tackle a homebrew and open source
DMR modem
.
The setup uses a LimeS... | 4 | 4 | [
{
"comment_id": "8119937",
"author": "Woj SP5WWP",
"timestamp": "2025-04-19T11:24:28",
"content": "OpenRTX is not an “open DMR project”. It’s an open-source firmware for amateur transceivers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8119953",
"author... | 1,760,371,572.549153 | ||
https://hackaday.com/2025/04/18/restoring-an-abandoned-game-boy-kiosk/ | Restoring An Abandoned Game Boy Kiosk | Maya Posch | [
"Games",
"Nintendo Hacks",
"Repair Hacks"
] | [
"Nintendo Game Boy",
"restoration"
] | Back in the olden days, there existed physical game stores, which in addition to physical games would also have kiosks where you could try out the current game consoles and handhelds. Generally these kiosks held the console, a display and any controllers if needed. After a while these kiosks would get scrapped, with on... | 8 | 2 | [
{
"comment_id": "8119865",
"author": "Mause",
"timestamp": "2025-04-19T06:13:38",
"content": "Is it true that it does not work outside the kiosk? And what that circuit board does? Is it only a power supply or it injects some signal that makes the gameboy run?",
"parent_id": null,
"depth": 1,... | 1,760,371,572.934804 | ||
https://hackaday.com/2025/04/18/haircuts-in-space-how-to-keep-your-astronauts-looking-fresh/ | Haircuts In Space: How To Keep Your Astronauts Looking Fresh | Maya Posch | [
"Space"
] | [
"haircut",
"international space station"
] | NASA astronaut Catherine Coleman gives ESA astronaut Paolo Nespoli a haircut in the Kibo laboratory on the ISS in 2011. (Credit: NASA)
Although we tend to see mostly the glorious and fun parts of hanging out in a space station, the human body will not cease to do its usual things, whether it involves the digestive syst... | 20 | 9 | [
{
"comment_id": "8119857",
"author": "jcj",
"timestamp": "2025-04-19T04:13:13",
"content": "The Suck Kut is real!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8119872",
"author": "pelrun",
"timestamp": "2025-04-19T07:14:59",
"conten... | 1,760,371,572.709173 | ||
https://hackaday.com/2025/04/18/robot-picks-fruit-and-changes-light-bulbs-with-measuring-tape/ | Robot Picks Fruit And Changes Light Bulbs With Measuring Tape | Tyler August | [
"Parts",
"Robots Hacks"
] | [
"agricultural robot",
"end effector",
"robot gripper",
"robotic gripper"
] | How far can you stretch a measuring tape before it buckles? The answer probably depends more on the tape than the user, but it does show how sturdy the coiled spring steel rulers can be. [Gengzhi He et. al.] may have been playing that game in the lab at UC San Diego when they hit upon the idea for a new kind of
low-cos... | 9 | 6 | [
{
"comment_id": "8119835",
"author": "Craig",
"timestamp": "2025-04-19T00:33:25",
"content": "Yes, but a 3 year old can’t work non-stop for hours. Robots don’t need to be even half as agile as humans to be valuable. They just need to be able to do the same thing without needing a lunch break or slee... | 1,760,371,572.503701 | ||
https://hackaday.com/2025/04/17/modernizing-an-enigma-machine/ | Modernizing An Enigma Machine | Matt Varian | [
"Retrocomputing",
"Reverse Engineering"
] | [
"De Bruijn sequence",
"encryption",
"enigma",
"enigma machine",
"Pogo pin"
] | This project by [Miro] is awesome, not only did he build a replica Enigma machine using modern technologies, but after completing it, he went back and revised several components to make it more usable. We’ve featured Enigma machines here before; they are complex combinations of mechanical and electrical components that... | 6 | 4 | [
{
"comment_id": "8119409",
"author": "Jan",
"timestamp": "2025-04-17T14:32:04",
"content": "Cool project and cool to see how various methods were tried to achieve the goal.Looking at the project page (https://joo.kie.sk/?page_id=999) I can’t help seeing four cat faces in the image (rotors_ir.jpg) of... | 1,760,371,572.825345 | ||
https://hackaday.com/2025/04/16/using-a-mig-welder-acetylene-torch-and-air-hammer-to-remove-a-broken-bolt/ | Using A MIG Welder, Acetylene Torch, And Air Hammer To Remove A Broken Bolt | John Elliot V | [
"Tool Hacks"
] | [
"Acetylene Torch",
"Air Hammer",
"Bolt Removal",
"Broken Bolt",
"mig welder"
] | If your shop comes complete with a MIG welder, an acetylene torch, and an air hammer, then you have more options than most when it comes to
removing broken bolts
.
In this short video [Jim’s Automotive Machine Shop, Inc] takes us through the process of removing a broken manifold bolt: use a MIG welder to attach a washe... | 13 | 8 | [
{
"comment_id": "8119336",
"author": "Steve Gunnell",
"timestamp": "2025-04-17T06:53:59",
"content": "If this process interests you then have a look at any of the groups restoring WW2 tanks. It is a very common task to have to remove sheared, corroded or stuck bolts and studs. Also Engels Coach Shop... | 1,760,371,573.212675 | ||
https://hackaday.com/2025/04/16/an-absolute-zero-of-a-project/ | An Absolute Zero Of A Project | Dan Maloney | [
"Misc Hacks"
] | [
"absolute zero",
"Charles's Law",
"thermocouple",
"thermodynamics",
"time of flight",
"TOF"
] | How would you go about determining absolute zero? Intuitively, it seems like you’d need some complicated physics setup with lasers and maybe some liquid helium. But as it turns out,
all you need is some simple lab glassware and a heat gun
. And a laser, of course.
To be clear, the method that [Markus Bindhammer] descri... | 12 | 5 | [
{
"comment_id": "8119323",
"author": "MinorHavoc",
"timestamp": "2025-04-17T04:36:51",
"content": "I love experiments like this. It shows how some perhaps mysterious scientific principles and concepts can be derived and illustrated using materials, tools, and techniques well within the grasp of hob... | 1,760,371,573.357278 | ||
https://hackaday.com/2025/04/16/gk-stm32-mcu-based-handheld-game-system/ | GK STM32 MCU-Based Handheld Game System | Maya Posch | [
"Games"
] | [
"diy handheld",
"stm32"
] | These days even a lowly microcontroller can easily trade blows with – or surpass – desktop systems of yesteryear, so it is little wonder that DIY handheld gaming systems based around an MCU are more capable than ever. A case in point is the
GK handheld gaming system
by [John Cronin], which uses an MCU from relatively n... | 8 | 5 | [
{
"comment_id": "8119272",
"author": "Timo",
"timestamp": "2025-04-17T00:43:34",
"content": "But does it run Doom (Eternal)? (gotta set a new bar for these high powered things…)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8119278",
"author": "Davi... | 1,760,371,573.498597 | ||
https://hackaday.com/2025/04/16/making-a-variable-speed-disc-sander-from-an-old-hard-drive/ | Making A Variable Speed Disc Sander From An Old Hard Drive | John Elliot V | [
"Tool Hacks"
] | [
"Circular Sander",
"disc sander",
"Hard Disk Drive",
"hdd"
] | This short video from [ProShorts 101] shows us
how to build a variable speed disc sander
from not much more than an old hard drive.
We feel that as far as hacks go this one ticks all the boxes. It is clever, useful, and minimal yet comprehensive; it even has a speed control! Certainly this hack uses something in a way ... | 60 | 22 | [
{
"comment_id": "8119203",
"author": "smellsofbikes",
"timestamp": "2025-04-16T20:09:39",
"content": "I cut up sandpaper with wrecked scissors, like the pair that someone apparently tried to cut wire with or the pair I dropped and bent the tip of one scis so I ground them down like kids’ safety scis... | 1,760,371,573.452976 | ||
https://hackaday.com/2025/04/16/floss-weekly-episode-829-this-machine-kills-vogons/ | FLOSS Weekly Episode 829: This Machine Kills Vogons | Jonathan Bennett | [
"Hackaday Columns",
"Podcasts"
] | [
"Bufferbloat",
"Dave Taht",
"FLOSS Weekly"
] | This week,
Jonathan Bennett
chats with
Herbert Wolverson
and
Frantisek Borsik
about LibreQOS, Bufferbloat, and
Dave Taht’s
legacy. How did Dave figure out that Bufferbloat was the problem? And how did LibreQOS change the world? Watch to find out!
Dave’s blog:
https://blog.cerowrt.org
http://the-edge.taht.net/
https://l... | 1 | 1 | [
{
"comment_id": "8140418",
"author": "Marc Blanchet",
"timestamp": "2025-06-19T17:57:48",
"content": "Hello, about deep space networking, I’m the one that initially talked to Dave about it, as I’ve been working on this for quite some time. If you want to talk, happy to!",
"parent_id": null,
... | 1,760,371,573.534932 | ||
https://hackaday.com/2025/04/16/spacemouse-destroyed-for-science/ | SpaceMouse Destroyed For Science | Fenix Guthrie | [
"Peripherals Hacks"
] | [
"analog joystick",
"Joystick",
"light meter",
"space mouse"
] | The SpaceMouse is an interesting gadget beloved by engineers and artists alike. They function almost like joysticks, but with six degrees of freedom (6DoF). This can make them feel a bit like magic, which is why [Thought Bomb Design] decided to
tear one apart and figure out how it works
.
The movement mechanism ended u... | 33 | 11 | [
{
"comment_id": "8119110",
"author": "eMpTy-10",
"timestamp": "2025-04-16T15:41:33",
"content": "That’s pretty neat! It also would seem that these things are absurdly expensive for what they actually are…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "811912... | 1,760,371,573.611547 | ||
https://hackaday.com/2025/04/17/tiny-hackable-telepresence-robot-for-under-100-meet-goby/ | Tiny, Hackable Telepresence Robot For Under $100? MeetGoby | Donald Papp | [
"Crowd Funding",
"Robots Hacks"
] | [
"arduino",
"ESP32",
"FPV",
"goby",
"telepresence",
"telepresence robot",
"tinypresence",
"WebRTC"
] | [Charmed Labs] are responsible for bringing numerous open-source hardware products to fruition over the years, and their latest device is
an adorably small robotic camera platform called
Goby
, currently crowdfunding for its initial release.
Goby
has a few really clever design features and delivers a capable (and hacka... | 10 | 4 | [
{
"comment_id": "8119622",
"author": "Tim Andersson",
"timestamp": "2025-04-18T06:05:18",
"content": "I could see this being used as miniature FPV anti personel mine (something like PFM-1 but on wheels). Could be good for destroying enemy units stationed in buildings or urban environments.",
"pa... | 1,760,371,573.663304 | ||
https://hackaday.com/2025/04/17/rise-of-the-robots-how-robots-are-changing-dairy-farms/ | Rise Of The Robots: How Robots Are Changing Dairy Farms | Maya Posch | [
"Robots Hacks"
] | [
"automation",
"dairy"
] | Running a dairy farm used to be a rather hands-on experience, with the farmer required to be around every few hours to milk the cows, feed them, do all the veterinarian tasks that the farmer can do themselves, and so on. The introduction of milking machines in the early 20th century however began a trend of increased a... | 20 | 10 | [
{
"comment_id": "8119604",
"author": "the gambler",
"timestamp": "2025-04-18T03:31:24",
"content": "Not to be that guy but self milking/robot setups have been part of the dairy community for a long time now. I’m not sure how this is a hack, recent news, or anything really.",
"parent_id": null,
... | 1,760,371,573.717304 | ||
https://hackaday.com/2025/04/17/a-blacksmith-shows-us-how-to-choose-an-anvil/ | A Blacksmith Shows Us How To Choose An Anvil | Jenny List | [
"Tool Hacks"
] | [
"anvil",
"anvil shaped object"
] | No doubt many readers have at times wished to try their hand at blacksmithing, but it’s fair to say that acquiring an anvil represents quite the hurdle. For anyone not knowing where to turn
there’s a video from [Black Bear Forge]
, in which he takes us through a range of budget options.
He starts with a sledgehammer, t... | 16 | 6 | [
{
"comment_id": "8119559",
"author": "Ostracus",
"timestamp": "2025-04-17T23:13:46",
"content": "Another one who knows all about Anvils is Wile E. Coyote.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8119566",
"author": "H",
"timestamp": "2... | 1,760,371,573.823285 | ||
https://hackaday.com/2025/04/17/designing-an-fm-drum-synth-from-scratch/ | Designing An FM Drum Synth From Scratch | Dan Maloney | [
"Musical Hacks"
] | [
"drum",
"filter",
"fm",
"synth",
"synthesizer",
"VCA",
"vco"
] | How it started: a simple repair job on a Roland drum machine. How it ended: a
scratch-built FM drum synth module
that’s completely analog, and completely cool.
[Moritz Klein]’s journey down the analog drum machine rabbit hole started with a Roland TR-909, a hybrid drum machine from the mid-80s that combined sampled sou... | 14 | 3 | [
{
"comment_id": "8119538",
"author": "Greg A",
"timestamp": "2025-04-17T20:59:48",
"content": "haha it’s a cool project, or it would be if it was documented off of youtube. but i would recommend revising the hackaday style guide to ban ‘from scratch’. the body of the article clearly states the des... | 1,760,371,573.770714 | ||
https://hackaday.com/2025/04/17/bicycle-gearbox-does-it-by-folding/ | Bicycle Gearbox Does It By Folding | Fenix Guthrie | [
"Transportation Hacks"
] | [
"bike",
"bike hacks",
"derailleur",
"folding gear",
"gearbox"
] | If you’ve spent any time on two wheels, you’ve certainly experienced the woes of poor bicycle shifting. You hit the button or twist the knob expecting a smooth transition into the next gear, only to be met with angry metallic clanking that you try to push though but ultimately can’t. Bicycle manufacturers collectively ... | 52 | 18 | [
{
"comment_id": "8119425",
"author": "Ostracus",
"timestamp": "2025-04-17T15:49:31",
"content": "I imagine it’s going to cost a lot too. Bicycling being the affordable hobby it is.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8119427",
"author": "d... | 1,760,371,573.920118 | ||
https://hackaday.com/2025/04/17/supercon-2024-exploring-the-ocean-with-open-source-hardware/ | Supercon 2024: Exploring The Ocean With Open Source Hardware | Tom Nardi | [
"cons",
"Featured",
"hardware",
"Slider"
] | [
"2024 Hackaday Supercon",
"buoy",
"iridium",
"research buoy"
] | If you had to guess, what do you think it would take to build an ocean-going buoy that could not only survive on its own without human intervention for more than two years, but return useful data the whole time? You’d probably assume such a feat would require beefy hardware, riding inside an expensive and relatively la... | 10 | 3 | [
{
"comment_id": "8119460",
"author": "Gravis",
"timestamp": "2025-04-17T18:01:58",
"content": "I like the ocean which is why I can confidently say that we should not be making advances in exploring it, especially if it makes it cheaper to do so. The problem is that if we do make advances then the pe... | 1,760,371,573.972656 | ||
https://hackaday.com/2025/04/17/budget-schlieren-imaging-setup-uses-3d-printing-to-reveal-the-unseen/ | Budget Schlieren Imaging Setup Uses 3D Printing To Reveal The Unseen | Tyler August | [
"Science"
] | [
"3d print",
"Schlieren",
"Schlieren photography",
"shadowgraph"
] | We’re suckers here for projects that let you see the unseeable, and [Ayden Wardell Aerospace] provides that on a budget with their
$30 Schlieren Imaging Setup
. The unseeable in question is differences in air density– or, more precisely, differences in the refractive index of the fluid the imaging set up makes use of, ... | 9 | 4 | [
{
"comment_id": "8119377",
"author": "psuedonymous",
"timestamp": "2025-04-17T11:51:49",
"content": "I can see a smartphone Schlieren setup being able to avoid using an external stop just by the entrance pupil for the camera being so danged tiny to start with.",
"parent_id": null,
"depth": 1... | 1,760,371,574.271364 | ||
https://hackaday.com/2025/04/16/porting-cobol-code-and-the-trouble-with-ditching-domain-specific-languages/ | Porting COBOL Code And The Trouble With Ditching Domain Specific Languages | Maya Posch | [
"Featured",
"Interest",
"Slider",
"Software Development"
] | [
"cobol",
"FORTRAN",
"gnucobol"
] | Whenever the topic is raised in popular media about porting a codebase written in an ‘antiquated’ programming language like Fortran or COBOL, very few people tend to object to this notion. After all, what could be better than ditching decades of crusty old code in a language that only your grandparents can remember as ... | 80 | 28 | [
{
"comment_id": "8119087",
"author": "Greg A",
"timestamp": "2025-04-16T14:25:28",
"content": "i don’t think this description of domain specific languages really gets to the concepts that matter. fortran is a good example. it’s not that the features of the language are good for scientific programm... | 1,760,371,574.22212 | ||
https://hackaday.com/2025/04/16/homemade-vna-delivers-high-frequency-performance-on-a-budget/ | Homemade VNA Delivers High-Frequency Performance On A Budget | Dan Maloney | [
"Tool Hacks"
] | [
"adc",
"fpga",
"RF",
"test equipment",
"vector network analyzer",
"vna"
] | With vector network analyzers, the commercial offerings seem to come in two flavors: relatively inexpensive but limited capabilities, and full-featured but scary expensive. There doesn’t seem to be much middle ground, especially if you want something that performs well in the microwave bands.
Unless, of course,
you bui... | 7 | 5 | [
{
"comment_id": "8119061",
"author": "CJay",
"timestamp": "2025-04-16T12:29:29",
"content": "Damn that’s impressive, I have no need of much more than a NanoVNA for my purposes, but I want one of Henrik’s",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8119064",... | 1,760,371,574.094799 | ||
https://hackaday.com/2025/04/16/binner-makes-workshop-parts-organization-easy/ | Binner Makes Workshop Parts Organization Easy | Matt Varian | [
"home hacks",
"Parts"
] | [
"barcode",
"component storage",
"database",
"organization",
"workshop"
] | We’ve all had times where we knew we had some part but we had to go searching for it all over as it wasn’t where we thought we put it. Organizing the numerous components, parts, and supplies that go into your projects can be a daunting task, especially if you use the same type of part at different times for different p... | 29 | 11 | [
{
"comment_id": "8119005",
"author": "Nikolai",
"timestamp": "2025-04-16T08:58:02",
"content": "There was a project with a Resistor Drawer Storage where the drawer requested resistor will lit. And I believe the feed was from the PCB CAD.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,371,574.72536 | ||
https://hackaday.com/2025/04/15/something-is-very-wrong-with-the-ay-3-8913-sound-generator/ | Something Is Very Wrong With The AY-3-8913 Sound Generator | Maya Posch | [
"Retrocomputing"
] | [
"AY-3-8910",
"ay-3-8913",
"mockingboard"
] | The General Instruments AY-3-8910 was a quite popular Programmable Sound Generator (PSG) that saw itself used in a wide variety of systems, including Apple II soundcards such as the Mockingboard and various arcade systems. In addition to the Yamaha variants (e.g. YM2149), two cut-down were created by GI: these being th... | 14 | 4 | [
{
"comment_id": "8118995",
"author": "Richard",
"timestamp": "2025-04-16T08:01:51",
"content": "Perhaps this is due to my lackadaisical use of hearing protection when young, but I can’t hear a difference between the two",
"parent_id": null,
"depth": 1,
"replies": [
{
"comme... | 1,760,371,574.471717 | ||
https://hackaday.com/2025/04/15/replica-of-1880-wireless-telephone-is-all-mirrors-no-smoke/ | Replica Of 1880 Wireless Telephone Is All Mirrors, No Smoke | Tyler August | [
"Laser Hacks",
"Wireless Hacks"
] | [
"Alexander Graham Bell",
"analog telephony",
"steampunk",
"telephone",
"wireless"
] | If we asked you to name Alexander Graham Bell’s greatest invention, you would doubtless say “the telephone”; it’s probably the only one of his many, many inventions most people could bring to mind. If you asked Bell himself, though, he would tell you his greatest invention was the photophone, and if the prolific [
Nick... | 18 | 10 | [
{
"comment_id": "8118965",
"author": "Wallace Owen",
"timestamp": "2025-04-16T02:16:02",
"content": "Bell labs invented the laser. Just sayin.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8118967",
"author": "Seth",
"timestamp": "2025-04-1... | 1,760,371,574.591517 | ||
https://hackaday.com/2025/04/15/diy-ai-butler-is-simpler-and-more-useful-than-siri/ | DIY AI Butler Is Simpler And More Useful Than Siri | Donald Papp | [
"Artificial Intelligence"
] | [
"AI assistant",
"digital assistant",
"diy",
"LLM",
"sqlite"
] | [Geoffrey Litt] shows that getting an effective digital assistant that’s tailored to one’s own needs just needs a little DIY, and thanks to the kinds of tools that are available today, it doesn’t even have to be particularly complex. Meet
Stevens
, the AI assistant who provides the family with useful daily briefs
. The... | 8 | 3 | [
{
"comment_id": "8118941",
"author": "Maria",
"timestamp": "2025-04-15T23:33:18",
"content": "AI doing creepy things episode 2137.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8118992",
"author": "Josiah Bryan",
"timestamp": "2025-04-16T07:... | 1,760,371,574.52469 | ||
https://hackaday.com/2025/04/15/making-parts-feeders-work-where-they-werent-supposed-to/ | Making Parts Feeders Work Where They Weren’t Supposed To | Lewin Day | [
"Tool Hacks"
] | [
"manncorp",
"pick and place",
"siemens"
] | [Chris Cecil] had a problem. He had a Manncorp/Autotronik MC384V2 pick and place, and needed more feeders. The company was reluctant to support an older machine and wanted over $32,000 to supply [Chris] with more feeders. He contemplated the expenditure… but then came across another project which gave him pause.
Could ... | 21 | 6 | [
{
"comment_id": "8118934",
"author": "drenehtsral",
"timestamp": "2025-04-15T22:24:38",
"content": "I’ve seen this all too often in the industrial automation space. When doing consulting with some friends/coworkers we had a customer who had a giant (and expensive) machine on their factory floor tha... | 1,760,371,574.653081 | ||
https://hackaday.com/2025/04/15/a-new-kind-of-bike-valve/ | A New Kind Of Bike Valve? | Fenix Guthrie | [
"Transportation Hacks"
] | [
"bicycle",
"bike",
"bike hacks",
"Schrader valve"
] | If you’ve worked on a high-end mountain or road bike for any length of time, you have likely cursed the Presta valve. This humble century-old invention is the bane of many a home and professional mechanic. What if there is a better option? [Seth] decided to find out by
putting four valves on a single rim
.
The contende... | 52 | 23 | [
{
"comment_id": "8118889",
"author": "Sam",
"timestamp": "2025-04-15T19:12:05",
"content": "It’s mentioned in the comments to that video and worth repeating here that issues with Presta valves are often the result of over loosening the nut. You only need to give them about one full turn to add/remov... | 1,760,371,574.817668 | ||
https://hackaday.com/2025/04/15/announcing-the-hackaday-pet-hacks-contest/ | Announcing The Hackaday Pet Hacks Contest | Elliot Williams | [
"contests",
"Hackaday Columns"
] | [
"2025 Pet Hacks Contest",
"contest",
"pet hacks",
"pets"
] | A dog may be man’s best friend, but many of us live with cats, fish, iguanas, or even wilder animals. And naturally, we like to share our hacks with our pets. Whether it’s a robot ball-thrower, a hamster wheel that’s integrated into your smart home system, or even just an automatic feeder for when you’re not home, we w... | 14 | 10 | [
{
"comment_id": "8118915",
"author": "Rich",
"timestamp": "2025-04-15T20:51:33",
"content": "Meow",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8118927",
"author": "threeve",
"timestamp": "2025-04-15T21:49:19",
"content": "may we all hope the Acou... | 1,760,371,574.879509 | ||
https://hackaday.com/2025/04/15/new-brymen-bluetooth-bm788bt-digital-multimeter-coming-soon/ | New Brymen Bluetooth BM788BT Digital Multimeter Coming Soon | John Elliot V | [
"Reviews",
"Tool Hacks"
] | [
"bluetooth",
"BM780 Series",
"BM788BT",
"Brymen",
"digital multimeter"
] | If you’re into electronics you can never have too many digital multimeters (DMMs). They all have different features, and if you want to make multiple measurements simultaneously, it can pay to have a few. Over on his video blog [joe smith] reviews the new Brymen BM788BT, which is a new entry into the Bluetooth logging ... | 14 | 5 | [
{
"comment_id": "8118845",
"author": "coup on Vill",
"timestamp": "2025-04-15T15:49:40",
"content": "I’ll say no to it just from the unbranded second hand looking cardboard box and the recycled looking piece of bubble packing material. And no test leads?",
"parent_id": null,
"depth": 1,
... | 1,760,371,574.931811 | ||
https://hackaday.com/2025/04/15/keebin-with-kristina-the-one-with-john-lennons-typewriter/ | Keebin’ With Kristina: The One With John Lennon’s Typewriter | Kristina Panos | [
"Hackaday Columns",
"Peripherals Hacks"
] | [
"chorded keyboard",
"John Lennon",
"mid-century",
"mpu6050",
"Odell",
"Odell index typewriter",
"Odell typewriter",
"Palm Springs",
"wearable keyboard",
"wooden typewriter"
] | Image by [akavel] via
GitHub
Reader [akavel] was kind enough to notify me about
Clawtype
, which is a custom wearable chorded keyboard/mouse combo based on
the Chordite
by [John W. McKown].
First of all, I love the brass rails — they give it that lovely circuit sculpture vibe. This bad boy was written in Rust and curre... | 2 | 2 | [
{
"comment_id": "8118822",
"author": "Mac Cody",
"timestamp": "2025-04-15T14:27:53",
"content": "“While Lennon composed poems and songs on the machine, it’s unclear whether he secretly wanted to be a paperback writer.”I see what you did there!https://www.youtube.com/watch?v=yYvkICbTZIQ",
"parent... | 1,760,371,574.982747 | ||
https://hackaday.com/2025/04/15/shine-on-you-crazy-diamond-quantum-magnetic-sensor/ | Shine On You Crazy Diamond Quantum Magnetic Sensor | Dan Maloney | [
"Laser Hacks",
"Science"
] | [
"diamond",
"laser",
"magnetic",
"microwave",
"N-V",
"nitrogen vacancy center",
"PLL",
"quantum",
"sensor",
"spin"
] | We’re probably all familiar with the Hall Effect, at least to the extent that it can be used to make solid-state sensors for magnetic fields. It’s a cool bit of applied physics, but there are other ways to sense magnetic fields, including leveraging the weird world of quantum physics with
this diamond, laser, and micro... | 21 | 9 | [
{
"comment_id": "8118768",
"author": "Esaki",
"timestamp": "2025-04-15T11:33:05",
"content": "Is this similar action to a tunnel diode?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8118770",
"author": "evelynmartin3022",
"timestamp": "2025-04-15T11:5... | 1,760,371,575.041019 | ||
https://hackaday.com/2025/04/15/this-potato-virtual-assistant-is-fully-baked/ | This Potato Virtual Assistant Is Fully Baked | Seth Mabbott | [
"3d Printer hacks",
"Artificial Intelligence"
] | [
"home-assistant",
"portal",
"portal 2",
"raspberry pi",
"ReSpeaker",
"smart speaker"
] | There are a number of reasons you might want to build your own smart speaker virtual assistant. Usually, getting your weather forecast from a snarky, malicious AI potato isn’t one of them, unless you’re a huge
Portal
fan like [Binh Pham].
[Binh Pham] built the
potato incarnation of GLaDOS
from the
Portal 2
video game w... | 10 | 4 | [
{
"comment_id": "8118748",
"author": "Carl Breen",
"timestamp": "2025-04-15T09:12:45",
"content": "Nice project! It brings back fond memories, especially of how good video games were back then. Subscriptions and season passes really did a number on gaming.",
"parent_id": null,
"depth": 1,
... | 1,760,371,575.086997 | ||
https://hackaday.com/2025/04/14/building-a-diy-tornado-tower/ | Building A DIY Tornado Tower | Lewin Day | [
"Science"
] | [
"flow visualization",
"tornado",
"tornado tower",
"vortex"
] | A tornado can be an awe-inspiring sight, but it can also flip your car, trash your house, and otherwise injure you with flying debris. If you’d like to look at swirling air currents in a safer context,
you might appreciate this tornado tower build from [Gary Boyd].
[Gary]’s build was inspired by museum demonstrations a... | 13 | 9 | [
{
"comment_id": "8118717",
"author": "Mike",
"timestamp": "2025-04-15T06:08:38",
"content": "NO video, who cares",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8118720",
"author": "boo",
"timestamp": "2025-04-15T06:56:27",
"content": ... | 1,760,371,575.467606 | ||
https://hackaday.com/2025/04/14/diy-scanning-spectrometer-is-a-bright-idea/ | DIY Scanning Spectrometer Is A Bright Idea | Tyler August | [
"News"
] | [
"arduino",
"photospectrometer",
"spectometry",
"spectrometer"
] | Spectroscopy seems simple: split a beam of light into its constituent wavelengths with a prism or diffraction grating, and measure the intensity of each wavelength. The devil is in the details, though, and what looks simple is often much harder to pull of in practice. You’ll find lots of details in [Gary Boyd]’s write-... | 7 | 2 | [
{
"comment_id": "8118486",
"author": "Owlman",
"timestamp": "2025-04-14T11:12:27",
"content": "“culminates the light” Interesting usage, I suspect it collimates the light though.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8118518",
"author": "Lig... | 1,760,371,575.353371 | ||
https://hackaday.com/2025/04/14/a-tricky-commodore-pet-repair-and-a-lesson-about-assumptions/ | A Tricky Commodore PET Repair And A Lesson About Assumptions | Maya Posch | [
"Repair Hacks",
"Retrocomputing",
"Reverse Engineering"
] | [
"Commodore PET",
"computer repair"
] | The PET opened, showing the motherboard. (Credit: Ken Shirriff)
An unavoidable part of old home computer systems and kin like the Commodore PET is that due to the age of their components they will develop issues that go far beyond what was covered in the official repair manual, not to mention require unconventional rep... | 11 | 7 | [
{
"comment_id": "8118493",
"author": "Christopher",
"timestamp": "2025-04-14T11:54:06",
"content": "This is dedication",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8118495",
"author": "RetepV",
"timestamp": "2025-04-14T12:04:53",
"content": "In r... | 1,760,371,575.560625 | ||
https://hackaday.com/2025/04/13/introducing-infrared-remote-control-protocols/ | Introducing Infrared Remote Control Protocols | John Elliot V | [
"Reverse Engineering",
"Wireless Hacks"
] | [
"HS0038 Infrared Receiver Module",
"infrared",
"ir",
"remote control",
"Rigol DS1102 Oscilloscope"
] | Over on his YouTube channel [Electronic Wizard] has released a video that explains how infrared (IR) remote controllers work:
IR Remote Controllers protocol: 101 to advanced
.
This video covers the NEC family of protocols, which are widely used in typical consumer IR remote control devices, and explains how the 38 kHz ... | 23 | 9 | [
{
"comment_id": "8118435",
"author": "Weasel",
"timestamp": "2025-04-14T07:06:16",
"content": "Oh yes, its surprising how simple this stuff is. I remember we built a small device that froze the projektor every now and then. Drove our prof nuts. Good times",
"parent_id": null,
"depth": 1,
... | 1,760,371,575.421987 | ||
https://hackaday.com/2025/04/13/the-prostar-the-portable-gaming-system-and-laptop-from-1995/ | The ProStar: The Portable Gaming System And Laptop From 1995 | Maya Posch | [
"Retrocomputing"
] | [
"game controller",
"portable game system"
] | Whilst recently perusing the fine wares for sale at the Vintage Computer Festival East, [Action Retro] ended up
adopting a 1995 ProStar laptop
. Unlike most laptops of the era, however, this one didn’t just have the typical trackpad and clicky mouse buttons, but also a D-pad and four suspiciously game controller lookin... | 5 | 3 | [
{
"comment_id": "8118408",
"author": "I Alone Possess The Truth",
"timestamp": "2025-04-14T02:06:28",
"content": "In what universe does it make sense to put the buttons at the base of the monitor (Sony Vaio) so the user has to constantly avoid bumping the keyboard keys?",
"parent_id": null,
... | 1,760,371,575.512264 | ||
https://hackaday.com/2025/04/13/hackaday-links-april-13-2025/ | Hackaday Links: April 13, 2025 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links",
"Slider"
] | [
"amateur radio",
"autonomous",
"dragon",
"driving",
"Fram2",
"hackaday links",
"logic",
"logical fallacies",
"pet",
"polyethylene terephthalate",
"robotaxi",
"soda bottle",
"SpaceX",
"Spock",
"star trek",
"The Engineer Guy",
"Waymo",
"x-ray"
] | It’s been a while since we’ve dunked on an autonomous taxi foul-up, mainly because it seemed for a while there that most of the companies field testing driverless ride-sharing services had either ceased operation or curtailed them significantly. But that appears not to be the case after
a Waymo robotaxi got stuck in a ... | 9 | 6 | [
{
"comment_id": "8118398",
"author": "scott_tx",
"timestamp": "2025-04-14T00:22:31",
"content": "Spock has issues with your logic.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8118406",
"author": "Piecutter",
"timestamp": "2025-04-14T01:23:37",
"... | 1,760,371,575.837878 | ||
https://hackaday.com/2025/04/13/3d-printed-milling-machine-is-solid-as-a-rock/ | 3D Printed Milling Machine Is Solid As A Rock | Tyler August | [
"cnc hacks"
] | [
"3D printed CNC mill",
"3D printed mill",
"cast concrete",
"CNC mill"
] | There are no shortage of CNC machines in the DIY space these days, but sometimes you just need to do things your own way. That’s what [Chris Borges] decided when he put together this rock-solid,
concrete-filled CNC milling machine
.
The concrete body of this machine is housed inside a 3D printed shell, which makes for ... | 59 | 12 | [
{
"comment_id": "8118345",
"author": "p",
"timestamp": "2025-04-13T20:22:13",
"content": "He seems to use a steel square tube, so the 3D printed part doesn’t seem to contribute much mechanically and is mostly aesthetic. The machine does look good though!",
"parent_id": null,
"depth": 1,
... | 1,760,371,575.94589 | ||
https://hackaday.com/2025/04/13/the-spade-hardware-description-language/ | The Spade Hardware Description Language | John Elliot V | [
"FPGA",
"hardware"
] | [
"ASIC",
"fpga",
"Hardware Description Language",
"hdl",
"Spade Language",
"verilog",
"vhdl"
] | Spade
is an open-source hardware description language (HDL) developed at Linköping University, Sweden.
Other HDLs you might have heard of include Verilog and VHDL. Hardware engineers use HDLs to define hardware which can be rendered in silicon. Hardware defined in HDLs might look like software, but actually it’s not so... | 15 | 8 | [
{
"comment_id": "8118330",
"author": "rey54y45y",
"timestamp": "2025-04-13T18:51:48",
"content": "please make a cpuhttps://tic80.com/and gpu, sound accelarators.simple computer, many program for testing and one battery for a working demo for whole week.",
"parent_id": null,
"depth": 1,
"... | 1,760,371,575.744384 | ||
https://hackaday.com/2025/04/14/plasmonic-modulators-directly-convert-terahertz-waves-to-optical-signals/ | Plasmonic Modulators Directly Convert Terahertz Waves To Optical Signals | Maya Posch | [
"Science"
] | [
"plasmoid",
"plasmonics"
] | A major bottleneck with high-frequency wireless communications is the conversion from radio frequencies to optical signals and vice versa. This is performed by an electro-optic modulator (EOM), which generally are limited to GHz-level signals. To reach THz speeds, a new approach was needed, which researchers at ETH Zur... | 5 | 2 | [
{
"comment_id": "8118741",
"author": "metalman",
"timestamp": "2025-04-15T08:11:52",
"content": "Plasmodic phase modulators, dont just sound like something off of star treck, they make star treck sound dated, or mythical.The reality is that things like plasmodic phase modulators will contribute to a... | 1,760,371,575.791024 | ||
https://hackaday.com/2025/04/14/elastic-bands-enable-touchable-volumetric-display/ | Elastic Bands Enable Touchable Volumetric Display | Aaron Beckendorf | [
"hardware",
"Video Hacks"
] | [
"3d",
"elastic band",
"POV",
"volumetric",
"volumetric display"
] | Amazing as volumetric displays are, they have one major drawback: interacting with them is complicated. A 3D mouse is nice, but unless you’ve done a lot of CAD work, it’s a bit unintuitive. Researchers from the Public University of Navarra, however, have developed a touchable volumetric display, bringing touchscreen-li... | 12 | 6 | [
{
"comment_id": "8118665",
"author": "D",
"timestamp": "2025-04-14T23:50:28",
"content": "While this is very cool, it feels more like a novelty art piece than a practical device. It’s hard to imagine building a daily-use device with the low resolution, material wear, and sound pollution this probabl... | 1,760,371,575.99832 | ||
https://hackaday.com/2025/04/14/esp32-powered-clock-brings-aviation-style-to-your-desk/ | ESP32-Powered Clock Brings Aviation Style To Your Desk | Lewin Day | [
"clock hacks"
] | [
"aviation",
"clock",
"gauges"
] | There’s something cool about the visual design language used in the aviation world. You probably don’t get much exposure to it if you’re not regularly flying a plane, but there are other ways you can bring it into your life. A great example would be building an aviation-themed clock,
like this stylish timepiece from [o... | 14 | 8 | [
{
"comment_id": "8118647",
"author": "El Gru",
"timestamp": "2025-04-14T22:33:49",
"content": "There is just one major design flaw:Aviators use the 24 hour format.(And those that do not, should be grounded forever.)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_i... | 1,760,371,576.053795 | ||
https://hackaday.com/2025/04/14/converting-the-c64-mini-into-a-c64c/ | Converting The C64 Mini Into A C64C | Lewin Day | [
"Retrocomputing"
] | [
"c64",
"commodore 64",
"retrocomputing"
] | The C64 Mini is a beautiful and functional replica of the most popular computer ever made, except at 50% size and without a working keyboard. For maximum nostalgia, it was modeled after the brown breadbox C64 case which so characterized the model. However, [10p6] wanted to build a tiny C64C instead,
so set about making... | 14 | 4 | [
{
"comment_id": "8118611",
"author": "CityZen",
"timestamp": "2025-04-14T21:00:31",
"content": "Needs banana for scale.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8118624",
"author": "I Alone Possess The Truth",
"timestamp": "2025-04-14T2... | 1,760,371,576.118727 | ||
https://hackaday.com/2025/04/14/linux-fu-stopping-a-runaway/ | Linux Fu: Stopping A Runaway | Al Williams | [
"Hackaday Columns",
"Linux Hacks",
"Slider"
] | [
"autokey",
"linux",
"Linux Fu",
"PSS"
] | The best kind of Hackaday posts are the ones where there was some insurmountable problem with an elegant solution devised through deep analysis of the problem and creativity. This is not one of those posts. I’m sure you are familiar with bit rot. You know, something works for a long time and then, for no apparent reaso... | 34 | 20 | [
{
"comment_id": "8118567",
"author": "the_morgan",
"timestamp": "2025-04-14T17:28:21",
"content": "I use lintalisthttps://lintalist.github.io/on windows. A lot. For many apps like word and outlook, and Windows Explorer tasks. Also web browser URL and quick password entries that are repetitious. Lint... | 1,760,371,576.19313 | ||
https://hackaday.com/2025/04/14/a-cheap-yellow-display-makes-a-video-walkie-talkie/ | A Cheap Yellow Display Makes A Video Walkie Talkie | Jenny List | [
"Video Hacks"
] | [
"Cheap Yellow Display",
"ESP32",
"videophone",
"walkie talkie"
] | The ESP32 series of microprocessors with their cheap high-power cores and built-in wireless networking have brought us a wide variety of impressive projects over the years. We’re not sure we’ve quite seen the like of [Jonathan R]’s
video walkie talkie
before though, a pair of units which as you might guess, deliver two... | 5 | 3 | [
{
"comment_id": "8118549",
"author": "Cheese Whiz",
"timestamp": "2025-04-14T16:08:39",
"content": "How I would have loved such a pair of devices as a kid!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8118914",
"author": "Joshua",
"timestam... | 1,760,371,576.235393 |
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