Linear Spool Bearing, Filament Guide & Spool End Cap

thingiverse

Here's a little linear bearing that can be customized with 3/4 inch dowels - I used an old mop handle that I cut up to create mine. To get it working smoothly, you'll need approximately 80 BB's and some lubricant won't hurt either. The outside diameter of this custom bearing measures 54mm and should fit standard filament spools available at filaments.ca like a glove. It comes complete with a filament guide and end cap for added functionality.