CNC Etch-A-Sketch! Probably as good a project as any to get a handle on the basics. Very basics.
Tentatively, the big picture is this:
Part 1: CNC hardware / electronics / wiring
Part 2: Software, setup and calibration https://youtu.be/eLdlV3-JaH8
Part 3: Machine Design
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Music:
“Sally Goodin” & “Reuben’s Train” – Nat Keefe with The Bow Ties
source