Which controller for semi-custom laser engraver (Bart Dring controller questions) (and Laser Upgrades!)

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61

Yeah.

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62

I was able to burn a cut through 3mm and 6mm plywood last night. Took a few tries to find the right combination that would cut through the 6mm without causing charring.

Hereā€™s what I ended up with. Both using air assist.
6mm: 300mm/s, 3 passes, 100% laser, 1mm step down per pass
3mm: 200mm/sec 70% single pass.

63

Which diode laser are you using again?
It may be silly, but I try to avoid 100% power on any of the ones I have, and I seem to get significantly better life out of them that a few other folks I know with the same lasersā€¦

I donā€™t go above 90% rated output power even if it means I do an extra pass.

64

a40640

I donā€™t like to run at 100% either. I plan on trying to find an alternative. I was just happy to finally get some through-cuts on 6mm plywood. Iā€™ve struggled with that in the past (but honestly never put a ton of effort into it).

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65

Ok. Everything is working now. SD Card issue ended up being the card I was using. I picked up an 8G card, formatted it FAT32, and it works fine.

Iā€™d say this project is complete.

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