Simplest plotter ever? No grbl, no Arduino, just python. An Adafruit stepper polargraph.
Channel: John Parkhill
Date: 2019-11-11

Working at a hedge fund all day, some times you want to make some art with your hands. This is that: the result of my polargraph project. It's a bit warmer and fuzzier than using GRBL etc, because you just write python directly and plot coordinate pairs. You even just download your files right off Wifi. All source code and the parts list etc available on my github: 

https://github.com/jparkhill/python_polargraph

git clone https://github.com/jparkhill/python_polargraph.git; 
cd python_polargraph
sudo pip3 install -e . 
python3 -i plotter.py 

The trickiest part of this project was hacking up the adafruit drivers to keep the steppers from overheating. "Replace us with the things that do the job better" -- Hot Chip, 'Huarache lights'
https://www.youtube.com/watch?v=9S0ONyRctyE