Formula 1 Filament Spool Adapters

While these hoops may not quite be what you are looking for to push your bowden printer to record print times, they'll surely help it look like it is going 200mph.

These spool adapters are easy to print and require no supports. Each rim packs in lots of detail for the 2.8m of 1.75mm filament they cost. The STL files are sized for 54mm ID spools (like Hatchbox etc), with an M8 threaded rod for an axle. There are 2 versions, a standard and an extended hub that allows stacking of horizontal spoo