Simple Spool Bushing V2

thingiverse

Spool bushings are easy to install; use one or two elastic bands. There's no need for additional tools. The bushing's central hole accommodates a 1/4" smooth rod, which can be expanded with a drill bit if necessary. I provide spool bushings in sizes 31, 39, 52, and 54mm that fit center holes of 32, 40, 53, and 55mm respectively. If you need a different size, simply provide the diameter of your spool's central hole - minimum size is 30mm.