I may disregard "Extreme" precision more that I should but I have several times just removed the armature, chucked the other end in the three jaw supported the "driver" end with a tailstock centre and turned the shaft to the desired dia.
Most times I've only had to mill or file down the key but once I needed to re-cut the keyway in the mill.
The KISS principle rules in my shop.
P.S. I'm still trying to think of a way to run the lathe in reverse in order to increase the dia. of a motor shaft (could make bearing changes dicey. LOL)
Most times I've only had to mill or file down the key but once I needed to re-cut the keyway in the mill.
The KISS principle rules in my shop.
P.S. I'm still trying to think of a way to run the lathe in reverse in order to increase the dia. of a motor shaft (could make bearing changes dicey. LOL)
Busy Bee 12-36 lathe, Busy Bee Mill drill, Busy Bee 4x6 bandsaw, Homemade 9x17 bandsaw, Ad infinitum.