Spool holder with bearing. Provides a smooth roll for that filament spool.

No external parts needed, everything is 3D printed.

Here’s a video of it in action: https://www.youtube.com/watch?v=E4T2LHLTaGk

My stator is printed at 100% infill while everything else is printed at 10% with PLA.

I also use mine without the retainer so that’s an option if you’d like.

I was inspired by a few other models on thingiverse but none were fully 3D printed. They either required a bearing or bolt.

Here are a few mentions:
https://www.thingiverse.com/thing:3551666
https://www.thingiverse.com/thing:3209211
https://www.thingiverse.com/thing:3421762

This is for the Ender-3 but I’ve provided the FreeCAD source file so modifications can easily be made.

For compatibility, I used version 0.19.x which is available off of github.

Printing

Make sure to print:

• 12 Bearing Discs
• 2 Cages
• 1 Retainer
• 1 Rotor Cap
• 1 Rotor Left
• 1 Rotor Right
• 1 Stator
• 1 Stator Cap