Thinking of a robot which can draw basic shapes upon command. Ideally, a voice command, but if that’s too complex, we can start off with a different type of command. I’m a python programmer, but have zero experience with adruino and the like. Please give me some advice to help me get started.
Buy cheap ender 3 3d printer, replace the hot end with a small spring loaded bracket that holds a pencil under tension, write basic x y gcode by hand or make a single line path in a slicer that supports it.