"You know, I have one simple request. And that is to have Shapeokos with frickin' laser beams attached to their heads!"
Pretty simple installation - I took an old PC power supply, hooked it to ground & 12v, connected ground & digital pin 12 on the Grblshield to the TTL, focused (~6" away is as close as I can get), and ran. Or tried to, the wire colors were reversed from the standards for the pinouts. Nothing got fried, so I switched them & it worked. The laser won't even mark white paper, but anything with color seems to cut. In this case, black paper plates left over from my 30th birthday party.
It just runs at 2"/min feedrate.
Code: Select all
;Laser cut circle
M3 (Start Spindle)
G0 X0.5050Y1.0000 (goto edge)
F2.00 (set feedrate)
G2 X0.5050Y1.0000 i0.4950j0 z-0.0000 (draw circle)
M5 (Stop Spindle)
M30 (End of Program)
I can just about get it to cut cardboard at 1"/min. Now to find some designs to cut! My 'Oko has been out of service while I wait on parts (brass standoffs for the Acme Z upgrade & wire connectors for the dual-Y upgrade), so it was nice to get some use out of it while I wait, even if my apartment smells like burning paper.
Too many of my stories (and letters from the bank) start with the fact that I was bored & in front of my computer with my credit card handy. This time it was a $95 800mw IR laser with TTL control:
Shapeoko #384: dual-Y, outside-belt, ACME-Z,1000mm Y, drag chain cable management, insert-nut style base board, 800mw IR laser cutter, & 3d-printing with Qu-Bd & Printrboard.