Polargraph / Walldrawer / Wallplotter

The Walldrawer project is a usual maker project which is suitable for old and young.
There is so much fun in watching it working on giant sheets, walls or whiteboards.

I modified usual constructions, now everybody can build one on a 3D printer with an Arduino UNO or, for the more engaged Makers, a selfmade PCB with ESP32.

My solution is below 30 bucks, beside some parts you may find around.
And best of all: it works, unlike several other constructions. It simply works.

I published the full project in German language on GitHub:
https://github.com/Pontifex42/Walldraw

There you find all files, code, instructions, part list, photos, videos and all you need.
If requested, I'll translate everything to english.