Re: [CAD_CAM_EDM_DRO] Solid coupler from motor to ball screw?

kdoney_63021 wrote:

>I have precise alignment from the servos I am mounting on a cnc
>router to the ball screws. I will be directly connecting the ball
>screws to the motors with no gearing. Are there any problems with
>turning a solid metal coupler on my lathe or should I stick with the
>adjustable couplers for sale commercially.
>
>

Well, if you can get the height of the motor on its mounting exactly
matched to
the shaft, then you can tighten the shaft coupling first, then bolt the
motor in
place while the shaft holds it aligned. But, this is not accepted
practice, as it
almost always ends up putting excessive radial thrust on the motor's
bearings.
Helical-slit couplers are the most desirable sort, but some resilient
couplers
can work for a long time before the resilient piece starts to wear out.

Jon