Re: Seems like we moved + pcb fab idea.
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Alter the angle of the laser to fire at 15-degrees so that it doesn't shoot back on itself.?
Still wouldn't use a CO2.? Back reflections are the issue. Ever see a resonator after the beam goes back into it? That happens at the pierce or etching (which is what you are doing).? Once the cut starts its typically OK (unless you lose the cut)
CO2 & copper is a gamble I wouldn't take.
But for that application I'd just get a like a 5w-7W LED and roll.
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