About this 3D model

I developed this spool gear to fit a variety of spools, as I have spools from multiple sources lying around. The gear is the same as the spool gear on the filament winder by Ian Johnson, with a few adjustments and a cone that starts at 50mm and goes down to 20mm. I have designed a replacement hall effect holder but it's still a work in progress. The bearing holding portion needs a little bit of work, because the bearing is loose by a hair or three.