We know it’s hard to hear it, but the days of you being a hotshot at the local Hackerspace because you’ve got a 3D printer at home are long gone. While they’re still one of the most persnickety pieces ...

So a local "maker space" has two introductory workshops. One for laser cutting/engraving, the other on 3D printing. Ideally I'd visit both, since I'm clueless in both techniques and I haven't designed ...

The basis of a solid-state diode laser is, of course, the diode. Laser diodes can have different emission wavelength—most of them have between 405 nm to 808 nm. The diodes usually have TO3, TO5, TO9, ...