Filament Spool Hub

My filament spools have a 52mm diameter hole, annd my filament holder just had an 8mm steel rod. So I needed some hub caps for them to fit more nicely. Saw some other designs but wanted something simplerto just get the job done. They work very well.

The .stl file is generated using my settings, 52mm spool hole diameter, 9mm rod hole.

The .scad file has these as parameters so it can be altered to your needs. Note this is my very first OpenSCAD project, so probably not the best code you've