Spool rails

thingiverse

Elegant spool rails now available for all types of spools. Quickly and easily swap out your spool with a fast, comfortable process. Rod diameter: 8 mm. Copper pipe outside diameter is 15 mm (In my case, I cut two 135 mm pipe sections). Bearing size is 608 (22x7 ID 8 mm). Everything fits together perfectly without needing any sanding. After printing, simply remove the inner supports shown in the first two photos.