About this 3D model
Summary EDIT 6.April 2021: I added roll consist of 2 parts roll_hole.stl roll_slot.stl You need 8x 8x16x5 ball bearings I added all files needed for assembly. Original comment: This remix of the graham01 anti tangle spool holder https://www.thingiverse.com/thing:2479238 Works well with my precise filament guide. https://www.thingiverse.com/thing:4808416 I apply some changes: I see some remixes ideas very clever and useful. So I ended with this: https://www.thingiverse.com/thing:4689700 I made my own roller in one piece inspired by https://www.thingiverse.com/thing:3020461 . But I added 0.2 mm blinded cap so it has better bed surface contact so better stability. And I cut some volume of the cross beam to be able to print it laying down on bed instead of printing it at standing position. Print Settings Rafts: No Supports: No Resolution: 200 Infill: 20 Filament: PolyMaker PLA