Is it safe to use the “paper towel” hack when cutting acrylic?

[evansd2]

@mpipes

I’ve tried sourcing pins

Orrrrr……

I made a pin bed (design file included)

So this is good work. I do think that the solution is a bit overengineered. The result you’re seeing has two components: reduced smoke residue on the back (reduced, not zero) no flashback pattern The reduced smoke residue is down to the fact that nothing traps the smoke against the bottom. The elimination of flashback is down to not having anything that can reflect the laser touching (or in very close proximity to) the rear surface. To that end I started to fool with your idea and came up…