Mining and Refining: Graphite
In my teenage years I worked for a couple of summers at a small amusement park as a ride operator. Looking back on it, the whole experience was a lot …read more Continue reading Mining and Refining: Graphite
Author Archives: Dan Maloney
Forever Writing on Monofilament Fishing Line
Collectively, we have a long-term memory problem. Paper turns to mulch, dyes in optical disks degrade, iron oxides don’t last forever, and flash memories will eventually fade away. So what …read more Continue reading Forever Writing on Monofilament Fishing Line
3D Printing Improves Passive Pixel Water Gauge
Here at Hackaday, we feature all kinds of projects, and we love them all the same. But some projects are a little easier to love than others, especially those that …read more Continue reading 3D Printing Improves Passive Pixel Water Gauge
Flipped Transformer Powers Budget-Friendly Vacuum Tube Amp
If you’ve ever wondered why something like a radio or a TV could command a hefty fraction of a family’s yearly income back in the day, a likely culprit is …read more Continue reading Flipped Transformer Powers Budget-Friendly Vacuum Tube Amp
Hackaday Links: November 5, 2023
As I write this, Supercon 2023 is in full swing down in Pasadena — 80 degrees and sunny at the moment, as opposed to 50 and pouring rain where I …read more Continue reading Hackaday Links: November 5, 2023
Lessons in Printer Poop Recycling
The fundamental problem with multi-color 3D printing using a single hotend is that they poop an awful lot. Every time they change filaments, they’ve got to purge the single nozzle, …read more Continue reading Lessons in Printer Poop Recycling
Wooden Game Boy is a Challenging Intro CNC Project
[Sebastian] describes himself as “a total noob” when it comes to CNC, so in an attempt to get to know his new CNC router, he chose about the most complex …read more Continue reading Wooden Game Boy is a Challenging Intro CNC Project
Just How Dodgy Are Cheap USB Chargers Anyway?
Aside from apparently having both the ability to reproduce on their own and simultaneously never being around when you need one, USB chargers seem innocuous enough. The specs are simple: …read more Continue reading Just How Dodgy Are Cheap USB Chargers Anyway?
Big Red Button Puts Toddler in Command of Chromecast
Controversial position: the world needs more buttons. We’ve gotten so far away from physical interfaces like buttons, knobs, and switches in favor of sleek but sterile touch-screen “controls” that when …read more Continue reading Big Red Button Puts Toddler in Command of Chromecast
Partial Relay-Based Calculator Puts the Click Where it Counts
It looks like [Michal Zalewski] is raising the next generation the right way. First, his eldest son asks for help building a one-bit computer from discrete transistors. Not to be …read more Continue reading Partial Relay-Based Calculator Puts the Click Where it Counts