December 25, 2006

If you have an Etch a Sketch in the closet collecting dust, the Etch CNC may be an interesting project that could put it back into use. “I am using a retrofit machine that fit within my budget. It’s a 2-axis machine with approximately 170x130mm travel. The circuit board is my own design, using a ULN2803 per motor to supply approx. 0.3 amps per winding. The power supply is a