开云体育

On Mon, Aug 8, 2022 at 06:55 PM, Bill in OKC too wrote:

How hard is the motor shaft? Will a file cut it, or does it just skate off ...

Can't say how hard but a file does not skate off.
You don't get to mark it just so but slow and easy will do it.
A sharp file and patience will surely get me there.

... put the pulley on the spindle where you want it ...??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ... put a punch mark where you need it.

Yes, that would not be an issue.
A properly drilled/tapped hole in the pulley is.

That's what I am concerned with, not mucking up an OEM U3 motor pulley.

The shaft could be marked with blue and pair of parallel lines traced with the tips of a caliper, like this:



Holding the motor's rotor in a jig/vice to use the scribed lines as a guide to get a proper the flat done may do the trick.?
Provided the lines are parallel, both to themselves and the motor's axis.

HTH!

Always. 8^)
Thanks a lot for your input.

Best,

JHM