I recently built a laser etching machine, and this Instructable covers the process I followed while making it, as well as some basic usage tips!
I've entered a couple contests with this Instructable, so if you like what you see, I'd greatly appreciate your vote! and be sure to check out all the other fantastic projects in the contests!!
BUT, First off, Some safety information.
USE EXTREME CAUTION WHEN ATTEMPTING THIS PROJECT! IT INVOLVES MODERATE-TO-HIGH-POWER LASERS THAT CAN BLIND YOU INSTANTLY, EVEN WHEN SEEN REFLECTED ON A DARK SURFACE, AS WELL AS DO SERIOUS DAMAGE TO YOU AND YOUR EQUIPMENT. DO NOT ATTEMPT IF YOU ARE NOT FAMILIAR WITH WORKING WITH LASERS!
I cannot stress enough how important it is to BE CAREFUL with these! Even while following all proper safety procedures, I have gotten several small burns on my hands as well as a couple tiny blind spots where a reflection glanced across my face.
I TAKE NO RESPONSIBILITY FOR ANY HARM CAUSED BY THIS PROJECT. UNDERTAKE IT AT YOUR OWN RISK.
Now that all that is out of the way, we can get on with the more interesting stuff! Then again, It's worth saying again: Don't be ignorant, if you aren't sure if you're doing something right, post a comment and I'll try to help, but at the end of the day, this is an advanced project, so be aware of the risks and take the appropriate precautions!
This is a VERY text heavy Instructable, I will be adding more pictures soon, but when I write these, I err on the side of over-explaining!
WOW, got featured on Hackaday!!! http://hackaday.com/2014/01/07/delta-laser-engraver-uses-inkscape-for-g-code/