Yarn-Aid Spinner

I got a couple of orders for something to keep yarn neatly while knitting and after a quick search i saw that most of the models are quite weak at the bottom so I designed my own. Just print this and glue on a couple of 10mm magnets (make sure they're opposing) and you are ready to knit your heart out. The bearing is adjustable with the thickness of the magnets, if I remember correctly I used one 2mm and one 1mm thick to get it where I liked it.