spool/filament holder roller bearingless/bearing ender 3 s1

I made the 1.0 and 2.0 and working on 3.0

1.0
bearingless works good. 

2.0
bearingless tighter tolerances and dug out ends to reduce friction and spin easier.
also took off one of the end lips since you don't need it when that side is slid on first. ( also requires no support then so less plastic is wasted on print)


3.0 (work in progress)
cutting the spool in half, adding two alignment teeth with a slop so then you can print the whole spool without any supports further reducing plastic waste. you will just ne4ed to slide them together as the 2 teeth on each spool end will align the spool up perfectly. each tooth will be 90 degrees from each other from center. then super glue them together. 

3.1
shorten the locking lip on main to allow a second spool holder on the otherside,