linuxdevices

Concrete Lathe Turns Metal: Full disclosure. If you want a lathe capable of turning metal stock, you probably should just buy one. But what fun is that? You can do like [kachurovskiy] and build one with your 3D printer. If you are chuckling, thinking y… ift.tt/Ntxv0cf

Mesmerizing Marble Runs from Procedural Generation: There are few things that can keep a certain kind of mechanically-inclined mind entranced as well as a marble run, and few structures that look as interestingly organic as procedurally-generated desig… ift.tt/u3lq6xV

Using the Raspberry Pi 500+ keyboard PC as a regular Bluetooth keyboard: While the Raspberry Pi 500+ is a fully functional Linux keyboard PC, it’s also possible to use it as a regular mechanical Bluetooth keyboard. This week, I had a problem with my r… ift.tt/SCWcMh0

Target the Best AA, and Take No Flak: In this era of cheap lithium pouch cells, it might seem mildly anachronistic to build AA batteries into a project. There are enough valid reasons to do so, however, and enough legacy hardware that still takes AAs, … ift.tt/m7KiPqU

The Cardboard Airplane Saga Continues: History is full of engineers making (or attempting to make) things out of the wrong stuff, from massive wooden aircraft to boats made of ice and sawdust. [PeterSripol] is attempting to make an ultralight aircraft … ift.tt/sAObWuS

2025 Component Abuse Challenge: Heat Activated LED Candles: [Miroslav Hancar] wasn’t satisfied with abusing just a single component for our Component Abuse Challenge. He decided to abuse a whole assembly, in particular, some LED candles. In this proje… ift.tt/uXTALpo

Giveaway Week 2025 – RAKwireless Blues.ONE LoRaWAN, LTE-M, and NB-IoT devkit: It turns out we don’t have two, but three companies offering free samples on CNX Software this year. The last one is a regular, and RAKwireless joins us for the… ift.tt/sX4mlCD

Teardown of HP Optical Link and Signal Investigations Using Siglent Technology: Anything with a laser has undeniable hacker appeal, even if the laser’s task is as pedestrian as sending data over a fiber optic cable. [Shahriar] from [The Signal Path] mu… ift.tt/rIEl9MZ

Autopsy of a First-Generation RX7 Mazda Rotary Car Engine: The eccentric shaft and rotor of the Mazda 12A rotary engine. (Credit: Baked Beans Garage, YouTube) In theory, Wankel-style rotary internal combustion engines have many advantages: they ditch … ift.tt/m2tcK1x

SLogic16U3 USB3 Logic Analyzer Combines Compact Design with 3.2 Gbps Bandwidth: The SLogic16U3 is a next-generation USB3 logic analyzer designed for engineers and hobbyists seeking high-speed signal analysis in a small form factor. Measuring just 40 × 40… ift.tt/5WiZ4Mm

Camera Capabilities Unlocked from a Mouse: There is a point where taking technology for granted hides some of the incredible capabilities of seemingly simple devices. Optical mice are a great example of this principle, using what are more or less entir… ift.tt/8wfjJTI

2025 Component Abuse Challenge: Glowing Neon From a 9 V Relay: Most of us know that a neon bulb requires a significant voltage to strike, in the region of 100 volts. There are plenty of circuits to make that voltage from a lower supply, should you wish… ift.tt/UZEFCLh

Thanks for a Superconference: Last weekend was Supercon, and it was, in a word super. So many people sharing so much enthusiasm and hackery, and so many good times. It’s a yearly dose of hacker mojo that we as Hackaday staff absolutely cherish, and we … ift.tt/Z6mAlga

Raspberry Pi 500+ mechanical keyboard PC review with Raspberry Pi OS “Trixie”: Today, we’ll review the Raspberry Pi 500+ mechanical keyboard PC using the recently released Raspberry Pi OS “Trixie” based on Debian 13.  It’s quite similar to the earlier … ift.tt/T1Kcdkm

What has 5,000 Batteries and Floats?: While it sounds like the start of a joke, Australian shipmaker Incat Tasmania isn’t kidding around about electric ships. Hull 096 has started charging, although it has only 85% of the over 5,000 lithium-ion batteri… ift.tt/tnYqhDT

BIOS Detectives Find Ghost Of Previously Unknown PC: Old parts such as EPROMs will often find themselves for sale on sites such as eBay, where they are sometimes snapped up by retrocomputing enthusiasts in search of interesting code. Vintage Computer F… ift.tt/pWcKGQh

2025 Component Abuse Challenge: Using Inductors to Steal Power from Qi Wireless Charging Base Station: Over on Hackaday.IO our hacker [bornach] has his entry into the Component Abuse Challenge: Inductors are Wireless Power Sources. Some ti… ift.tt/MpmSx6g

OldVersion.com Archive Facing Shutdown Due to Financing Issues: Finding older versions of particular software can be a real chore, all too often only made possible by the sheer grace and benevolence of their creators. At the same time older ve… ift.tt/ycC614o

R1 Neo leverages GPS & compact rugged design for Meshtastic networks: The R1 Neo is a compact, water-resistant Meshtastic device for off-grid communication and navigation. Developed by Muzi, it features an aircraft-grade aluminum base with a carbon-fiber… ift.tt/caLzioA

Giveaway Week 2025 – VOIPAC iMX93 Pro industrial development kit: The sixth prize of this year’s Giveaway Week is a VOIPAC iMX93 Pro industrial development kit with an NXP i.MX 93 Cortex-A55/M33 Edge AI SoC, 2GB LPDDR4, and 16GB eMMC… ift.tt/jrGTa0M