Transport auger for fischertechnik Kugelbahn
https://www.youtube.com/watch?v=rwYmrTzSQlI
Length 120mm and 240mm.
Cascadable.
For 13mm balls.
With internal bore for 4mm shaft. The shaft is easy to clamp so no mounting is necessary.
Optionally an M3 nut plus a cornice screw can be used.
The screw is chamfered at the bottom so that it can be easily printed.
The 120 mm version should be available on every printer.
For the 240 mm version, use a delta printer.
Use support material only below.
To be cascadable, the screw above 0.5mm over.
Use distance rings for easy running at the top and at the bottom.
This is more than 120mm.
The screw is very easy to print. 0.2 mm layer thickness is already sufficient.