Warning! if you send the g-code file to the µSD using Octoprint, the thumbnail and any other information additional to pure g-code could be stripped. Only transfer by Marlin BFT are untouched. Note: ...

If you are using a CAM software, you should also check the post-processor settings and the generated G-code. Thoroughly checking CNC code is crucial to preventing machine crashes. An often ...

The hand positions are encoded in G-code, and a borrowed G-code parser running on an Arduino Nano in the base controls it all. [ekaggrat] seems to be a master at making creative clocks like this.