With a 2 Watt 450Nm blue laser you can engrave glass. (skip to 1:35 for the mirror) The only thing you have to do is make the glass (or mirror back side) sensitive for the energy of the laser with a black feltpen or something similar. I’ve used my “DIY cheap laser engraver/cutter” that I have made earlier, see my other video.
youvenkes
#Glass #mirror #engraving #DIY #Watt #laser #engraver