More Bearings - Filament

Made a general purpose bearing using commercial 3/16 chrome ball bearing to keep my multiple filaments spools aligned and easy for the printer to pull the filament. The design is parameter driven from a text file with few parameters: Ball bearing size, inner hole diameter and outer diameter. The zip file contains the general purpose round bearing and the filament bearing which adds the larger outer spokes to fit the spool. Files supplied are openSCAD to build your own and STL. The outer part also prints a small piece that fits in a slot to hold the bearing in. Both the inner and outer have cut outs to insert the bearing. No glue is normally required. I have always had to do some minor cleanup on the inner and outer race to remove volunteer ABS. The bearings are from Amazon about $4 for 100. The design uses 15 ball bearings.