NEMA 17 Stepper Bearing Puller

My printer started chirping, I tracked it down to the nose bearing in the extruder motor, time to replace these cheap shielded bearings with some new sealed units, only problem, how to get the old ones off, oh yeah I have a printer, I'll print a solution!!!

I made this with PLA it fit very good, you will need a 4 X 50 mm screw and nut, thread the nut a little way on the screw and press into the hex opening from the bottom side.

I printed this at 60% with 3 perimeters and layers top and bot