The file 'Spiral Stair Thing For Modular Antfarm 3D Printer Model' is (stl) file type, size is 76.1KB.
Somebody asked for it, here you go.
See the stairs here: https://www.thingiverse.com/thing:2840661
30mm-teil-oben.stl | 107.8KB | |
30mm-teil-treppe.stl | 157.3KB | |
30mm-teil-unten.stl | 54.2KB |