Inland cardboard spool ring

Printing a lot of TPU and got frustrated with the weaker motor on one of my printers. Made these rings to help it roll better in my SunLu dryer. It takes 2 prints to make a set for a spool. Should not require any supports. If using it in a dryer I recomend printing it out of whatever material you are trying to print so that it can handle the heat. 

Uses 3/8'' x 1/8'' magnets x4 per side. Could use 2 per side really. 

N52 Neodymium Magnets 3/8 in x 1/8 in Rare Earth Disk - Applied Magnets - Magnet4less

Link for mags but use what you want!

I can make mods to this whenever so if there is something you may want to see let me know.