Re: Ben's 2.x Laser Build
Posted: Wed Jun 22, 2011 5:23 am
I wired up another pin on the AVR to TH so I could have gcode control of the laser. I cut myself a vanity tag:
Took several trials to learn what power to use to cut through. One early version turned to char.
I'm not sure how high you can actually set the knob for continuous cutting (i.e. how close to 5V) or whether the peak voltages are meant for pulsed operation, but there was certainly power to spare at about 1/4 turn at 500mm/min (about 20 IPM)
The other good news is that the glue in this 5mm plywood I got at home depot does not stink to high heaven like that scrap I tried before. Also, despite the fact that the random stencil font I downloaded is not really meant for true stencil work (the bridges are tiny, about 0.5mm) it came out just fine.
Took several trials to learn what power to use to cut through. One early version turned to char.
I'm not sure how high you can actually set the knob for continuous cutting (i.e. how close to 5V) or whether the peak voltages are meant for pulsed operation, but there was certainly power to spare at about 1/4 turn at 500mm/min (about 20 IPM)
The other good news is that the glue in this 5mm plywood I got at home depot does not stink to high heaven like that scrap I tried before. Also, despite the fact that the random stencil font I downloaded is not really meant for true stencil work (the bridges are tiny, about 0.5mm) it came out just fine.