Hacker News with Generative AI: DIY

The Family Bass - Music with an NES (linusakesson.net)
I connected a Family BASIC keyboard to an NES via a bespoke adapter in order to play its unique triangle waveform live.
I built a QR code with my bare hands to see how it works [video] (youtube.com)
Paper Globe (paperglo.be)
Get your template Instructions
All-Band Receiver Lets You Listen to All the Radio at Once (hackaday.com)
There are many ways to build a radio receiver, but most have a few things in common, such as oscillators, tuned circuits, detectors, mixers, and amplifiers.
De-smarting the Marshall Uxbridge (sig7.se)
This is the story of a commercially unavailable stereo pair of the bi-amped Marshall Uxbridge, with custom-built replacement electronics: active filters feeding two linear power amps. Listening to this high-fidelity set has brought me immense enjoyment. Play a great album on these near-fields, and the result is close to pure magic! Over and above the accurate reproduction of a wide audio range, the precision and depth of its stereo imaging is stunning.
Binary modding a water dispenser to save me from pressing a button (2021) (practicapp.com)
A few months ago, I decided that it’s time I started to become more responsible and to start drinking more water.
My Experience Biohacking (vale.rocks)
Biohacking is a term that has unfortunately become entangled with tabloid tips, TikTok health trends, and pseudo’science’. However, beneath this surface noise exists dedicated communities exploring the frontiers of human enhancement through do-it-yourself cybernetics, biochemistry, and body modifications. Communities driven by interests in transhumanism and an alignment with the hacker ethos that push boundaries in ways that extend far beyond the conventional ear piercing.
“PET-Globe” Demo (masswerk.at)
An avidly spinning globe for the Commodore PET — and some bit-vectors.
The Egg, an at Home Nuclear Reactor (enron.com)
The heat-resistant casing is engineered to withstand extreme temperatures, ensuring unmatched durability and safety. Designed for peak performance, it protects the reactor’s core while maintaining optimal thermal efficiency—even in the harshest conditions.
Refurb Weekend: Atari Stacy (blogspot.com)
Ask any Atari Stacy owner how to open an Atari Stacy and the answer is always "never, if you can avoid it." So I'll just lead with this spoiler image after the refurb to prove this particular escapade didn't completely end in tragedy:
Saving 100+ Desk Phones from E-Waste Doom with TFTP and a Simpler PBX (difuse.io)
Saving 100+ Desk Phones from E-Waste Doom with TFTP and a Simpler PBX
The DIY Multideck (mauri.app)
The DIY multideck is a deck of 162 playing cards (3 standard decks) that allows you to play hundreds of existing games, not only classic card games but also modern games that use components like boards or coins.
Making a DIY CNC machine with limited tools [video] (youtube.com)
Build a Better DIY Seismometer (ieee.org)
To detect temblors far away, a long-period seismometer is the ticket
My favourite computer ergonomics hack (jacobvosmaer.nl)
In this post I will talk about my favourite computer ergonomics hack, a DIY device I call "The Beeper".
Power up and tear down of a Rohde and Schwarz SKTU BN 4151/2/5 noise generator (makertube.net)
We are sorry but it seems that PeerTube is not compatible with your web browser.
PolyDye: Full color printer mod for Marlin 3D printers (github.com/cooljjj33)
The PolyDye Full Color 3D Printer Mod brings vibrant, full-color printing to Marlin-based printers by integrating inkjet printing technology directly into your 3D printer workflow.
Homebrew Batteries (hanssummers.com)
I had lots of fun building homebrew batteries. I wanted to build a radio transmitter powered by natural, homebrew power sources. The first thought, was a lemon battery (or few). All over the place on the internet, you can read about the classic school science project, sticking two dissimilar metals into a lemon and generating some small amount of power. Sometimes potatoes. You can even buy "kits" to do this in toystores.
I Saved an Electron Microscope from the Trash [video] (youtube.com)
Controllable Christmas Lights (mathlin.co.uk)
I built a robot in my studio during WFH – under $300 (medium.com)
I started my PhD in 2020, right when the world was discovering what moving entire industries to Work(ing) From Home (WFH) looked like.
Building a replacement 386/486 CMOS battery (rubenerd.com)
Motherboards made from the late-1990s to today generally have a CR2032 cell to maintain the system realtime clock and CMOS settings when the machine isn’t operating.
The Animatronic Menagerie (wordpress.com)
Welcome to The Animatronic Menagerie, where I’ll be sharing the process of designing and building a highly realistic raven animatronic. As a lifelong lover of technology and creativity, I’m happy to have you join me on this journey. Whether you’re an aspiring roboticist or simply fascinated by the intersection of machines and nature, I invite you to follow along.
Pi modder successfully adds M.2 slot to Pi 500 (jeffgeerling.com)
As I briefly mentioned yesterday, someone mentioned in this blog's comments a successful M.2 socket installation on the empty header on the Pi 500 (something I attempted, rather poorly!). With a few added components, and 3.3V supplied to a pad on the bottom via a bench power supply, the M.2 slot works just fine, allowing the use of NVMe SSDs or other PCIe devices.
Making a watch from scratch (reddit.com)
I made a watch from scratch. Link to the build pics in comments. Making more and looking for feedback, let me know what you think! (i.redd.it)
Pi modder successfully adds M.2 slot to Pi 500 (jeffgeerling.com)
As I briefly mentioned yesterday, someone mentioned in this blog's comments a successful M.2 socket installation on the empty header on the Pi 500 (something I attempted, rather poorly!). With a few added components, and 3.3V supplied to a pad on the bottom via a bench power supply, the M.2 slot works just fine, allowing the use of NVMe SSDs or other PCIe devices.
Howie Did It – 3D Printing a Printed Circuit Board [video] (youtube.com)
How to measure frequency response of a speaker at home (crabman.me)
Short answer: no, Soundcore Motion+ sounds the same via bluetooth and aux-in.
PostmarketOS-Powered Kubernetes Cluster (denv.it)
Having a few Raspberry Pi 4s at my disposal, I found myself somewhat dissatisfied with their processing capabilities and power management features. This led me to explore alternative solutions, particularly given the collection of old smartphones gathering dust in my drawer. These devices, while outdated for daily use, still pack considerable computing power. In this article, I’ll walk through how I transformed these old smartphones into a functional Kubernetes cluster using postmarketOS, giving them a second life as computing nodes.
Show HN: DIY 80€ 3D Printer Basement Ventilation (hajo.me)
I’m not going to get into the discussion of whether 4-Acryloylmorpholine should be inside 3D printer resin, but … If you can smell a class 3 health hazard in any living area, it’s time to take action!