An improved spool holder to fit (at least) Neptune 4 Pro. Includes space to hold 6004 bearings inside the holder for smoother rolling. This improves the printing experience especially when using the cardboard filament rolls used in (at least) Elegoo Rapid+ PLA.
To insert the bearings, print the whole model including both parts with the thread-part facing upwards. Add pauses for inserting the bearings after 15 mm and 83 mm. The outer diameter is 49.20 mm, so this might not fit all filament rolls, please bear that in mind.
Printed with Neptune 4 Pro, using Elegoo Rapid+ PLA. Print settings:
Dimensions for 6004 bearing:
The author marked this model as their own original creation.