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Hi there, been reading and finding many testimonials having mixed experiences on commercial laser engraving products (laser modules I mean), after a bit of research it seems like a quality problem, some are happy, some are not: because some lasers just died without any reason (no heatsink...

Hi there, been researching but can't find exactly "detailed" information. Why are IR lasers, or near IR laser diodes so dangerous? Please, let's try to make it educative. Why the thread: let's say a few laser forums have 10,000 words on the threads, well, for the sake of this example we could...

Hi, there is a second machine I'm building, alaser engraver. This one will have a IR laser that is on it's way. IR is invisible but harmful etc, so, safety measures should be taken. I want to do this: For THIS machine I have two options: 1. Opaque plastic cone to protect skin and specially...

Eh.. NO, this is not about DIY safety glasses, but yes it is about safety in general. I built my laser + cnc, works with a DVD diode (not as strong as I would like to, engraves and cut only dark material). Just ordered some powerful lasers (IR) stated as "useful for burning", and one violet...

Yes, it burns (don't know for how long). I know the pot mod (this thread is NOT about that). I just bought a class III 30mw green laser for playing, and after trying focusing the beam I noticed it burned black tape (very little). Out of curiosity tear it apart and found the potentiometer, tried...

Hi there, been reading a lot here and there but can't clear some doubts. Yes, I tried building my own power source following tutorials using the LM317 power regulator to no luck ruining two lasers, yes, despite following the instructions found on diff sites. I also found other testimonials on...