The file 'Marble Machine Knob Winders – Cyclone, Apex, Tulios 3D Printer Model' is (stl) file type, size is 329.7KB.
Knob winders for the other common 8mm marble machines
I also added a hex slot for my own purposes (working on a battery powered winder adapter using an RC car motor / axle)
Marble_Machine_Knob_-_Apex.stl | 270.9KB | |
Marble_Machine_Knob_-_Cyclone.stl | 259.8KB | |
Marble_Machine_Knob_-_Tulios.stl | 270.5KB |