I’ve been wanting to build a laser cutter like lasersaur or build.net for years now, but I haven’t been able to build up enough cash yet to do it. I do have a dangerously powerful laser pointer (OK actually I have like, 5 of them) that I built in college in 2008, however…
I’m using a spare solid state relay to turn the laser on and off, and measuring the current delivered to the laser through the multimeter.
I swept aside some of the other crap on the desk, and installed Ye Olde Beefcake Supply to provide the 12v it needs, using the multimeter to make sure I don’t give it too much juice. 200mA seems about right - I know it can take 300, but I just don’t want to risk it.
Focusing the laser using a non-blinding power level…
I’m a big fan of retaining my eyesight, so I ramped up the voltage to a point where I can see it in order to focus on the black origami paper (electrical tape works fine too)
Burninating the papers!
This picture is kind of crap, but that’s the best I can do with my phone. I set pronterface to 50mm/minute and ran in straight lines… success! it pretty much “etched” the paper, enough so that it appears as though it were die cut. Pictures were difficult to take, however - I can’t focus that close on such a fine line.
I’m not likely to continue with this, as I plan on bringing this particular printer back in to service as soon as the replacement extruder arrives in the mail.
however….
Pulled out of service a while ago, but I have hopes that it still runs!
30 watts of diode-pumped goodness!