Improved Prusa Mini+ Filament Sensor with PTFE tube quick fittings

I've started to re-design the Spoolholder for the Prusa Mini in order to hang it to my equipment rack. This spoolholder included a swiveling part with a PTFE tube towards the filament sensor to aim for a neater routing of the filament. Unfortunately the filament sensor did not allow for a good fixation of the PTFE tube, hence it was pushed out. In addition i was not happy with the feedthrough, the filament was often stuck in the sensor.

Design:

What i have changed in the design:

- incorperate 2 PTFE quick-fittings (PC4-M10) - Improved feedthrough by inserting the bowden tubes as close as possible - Design is now rounded which looked neater - lever arm extended by 1mm for some cleare issues. All bolts, magnets, steel ball, and sensor can be reused. I placed an m3 washer below the the lever arm for a more smooth operation.

Printing

- Body: to be printed on the flat surface with the hole for the wiring on the heatbed. minor support is needed for the internal geometry for the filament sensor hole (use a small support enforcerer). 3 or 4 perimeters are recommended to ensure a proper connection with the quick-fitting. - Cap: to be printed with the wiring clamp on the heatbed. A brim is recommended to ensure a proper print.