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DIY HACK – Etch CNC

Check out this cool etch CNC.  Actually we were thinking of making this too, but since it’s already made, we can learn from it and make it quicker.  Awesome! 🙂

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 standard AT hard-drive power connector, with the +12V used to power the

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