HyperCube Magnetic direct bowden extruder

17. April 2023
This design is obsolete and is replaced by https://www.thingiverse.com/thing:5937709

This used to be a remix of Bernis great idea of using magnetic force instead of springs to push a ballbearing against an extruder gear to feed filament into the hotend.
I'm currently using it on my HyperCube to gather it's performance with different filaments. So far I've just tested with PLA and it performs very well. Using a 470mm long PTFE tube between hotend and the extruder my retraction