Re: [CAD_CAM_EDM_DRO] PIC DRO

james owens wrote:

> Can you post a url for W. M. Burg and Stock Drive.

http://www.wmberg.com/
http://www.sdp-si.com/

>
> I haven't got a clue as to what you are on about, are these shaft
> couplers to attach steppers or encoders to a shaft in the context you
> are refering?

Right, exactly. The manufacturers state that you must not put high
axial, radial or angular
loads on the shafts of most shaft encoders. You need to use a coupling
that will relieve the
stress on the precision bearings in the encoder.

You should also use couplings if you direct drive a screw from a
stepper. using a belt drive
gives you a reduction as well as relieving the stress, and leaves the
end of the leadscrew
free to drive an encoder. If you direct drive the screw, you would need
a heavier grade
of shaft coupling to handle the torque.