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I tried the laser etched PCB with the same laser and the same settings, I could not get it to etch through the copper. No clue why. Always impressed with the Op
by androiddrew 11mo ago
I tried the laser etched PCB with the same laser and the same settings, I could not get it to etch through the copper. No clue why. Always impressed with the Opulo guys, but wish it was reproducible.
- bb88 11mo agoI tried with the same laser and settings as well, and couldn't get it to work either. I think the issue is that if there's a tarnish on the copper, it will work okay. The problem is when you polish the copper. It turns reflective and will not absorb the energy of the laser. A 5W UV laser or a 100W MOPA laser will give better results. I'm thinking about a 200W version for black friday.
- thomasjb 11mo agoBurning off black spray paint for etch resist worked for me. An extra step but easy enough