51mm Filament Spool Adapter

Could use less material but it fits nearly every spool I have well enough. Once I print 24 of them they should last a long time. They print fairly slowly, but they are rugged. They fit my 3/8 inch aluminum rods in my dry boxes perfectly. The filament brands I have are eSun, Solutech and Filamentum. They don't fit the Taulman mini-spools, but who cares.

My first contribution to Thingy ;-)