Parametric Spool Bushing

This is a resizable bushing to hold your spool onto a smaller smooth rod. It is basically a clone of ctheroux's 'Simple Spool Bushing V2' but made adjustable to fit whatever size spool or rod you're using. Simply slide one in each side and hold with two rubber bands (or zip ties, etc).

I use it with antslake's 'Spool holder for makerfarm prusa i3' on my MakerFarm i3v with an 8mm rod from a local hardware store.

The example STLs fit the spools I got from MakerFarm as well as two sizes I got