▲ 1 r/Laserengraving
When you have nothing to do on the weekend, you make something up...
u/Economy-Web-2143 — 11 days ago
A CO2 laser engraving machine I built for a contact lens manufacturer to engrave codes on the edge of the lenses.
5W Synrad tube, beam attenuator, beam expander, 70x70mm f-theta lens.