Fidget Spinner Cap Press Out Tool

thingiverse

I heavily modified this remix of 2ROBOTGUY's super awesome bearing pressout tool, which I frequently use to remove bearings from spinners without causing damage to either.\r\n\r\nMy main issue is that sometimes when making or repairing spinners, the cap breaks inside the 608ZZ bearing. As I often have the caps glued in the bearings, they can be a real hassle to remove once broken off inside.\r\n\r\nThis tool enables you to hold the bearing captive and press the cap out. The lower bore in the cup has a 20mm diameter, so this is the maximum cap diameter this tool supports, but you can always scale if needed (but keep in mind your 608ZZ bearing has a 22mm O.D.)\r\n\r\nThe parts in the pictures were printed with ABS at 50% infill and 1.5mm walls (fairly stout). I use a vise (pictured) for doing the pressing, which minimizes damage to the tooling, bearings, and caps (if they aren't already broken). If you plan to use a hammer or mallet, you may need to adjust print stoutness accordingly.\r\n\r\nI hope some of you out there find this as useful as I will, and as useful as I've found 2ROBOTGUY's original tool. Cheers!