Make pcb with laser engraver
Laser engraver is Laser cnc machine 50W, use 50% of 50W to engrave paint in copper layer.


Part to make:
1. PCB copper https://amzn.to/3rrFKLZ
2. Paint spray https://amzn.to/3poJ08r
3. Copper etchant https://amzn.to/3BH02p8
3. Laser cnc engraver https://amzn.to/3xgAiNG