As a US Marine Corps combat engineer serving in Iraq, Jim Monroe used MacGyver-like hacks to repair mine rollers. Meant to detonate and clear mines, these heavy studded wheels are mounted on the ...

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, ...

3D printing objects using metal is a well-established technique, but it tends to be too complex, expensive, or imprecise to match traditional methods at scale. Armed with $14 million from Nvidia and ...