10W laser with no fan


I’d like to do some colour paint laser engraving as per the technical video below… looks pretty cool but the fan needs to be turn off to avoid blowing off the pigments!

Is there a way to do this without unplugging it from the unit?


I mean, you could edit the firmware to turn it off, but part of the function of air assist on laser cutters is to prevent particles from going up and sticking on the lens, where then it would absorb laser energy, get super hot, then crack the lens. Don’t know specifically if that’s a concern on this machine, but I don’t think turning the fan off is a free lunch so to speak.

I’ve tried using the laser (1600mW) to fuse these powders. I focused on the material, applied the powder and then placed a very thin sheet of glass on top. I very quickly gave up.