The EBB has lots of external I/O pins which can be used for both digital and analog control. The hardware/code modifications described are equally applicable to other EiBotBoard-based machines, such as the Eggbot or Watercolorbot, and can obviously be used to control things other than laser diodes. The modifications are pretty simple and the results are fantastic! I've been having great fun drawing stuff with my AxiDraw drawing machine and wanted to see what could be done with a small laser diode - either infrared for some laser cutting, or visible/UV for light painting. I accept no responsibility for any harm caused! Wear suitable goggles, don't look directly at the spot or reflections, etc. AxiDraw laser cutting, light painting and phosphorescent/glow in the dark vinyl (31/05/16) Please take adequate precautions when working with high-power laser diodes such as described on this page.
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