Re: [CAD_CAM_EDM_DRO] Motor/Leadscrew Couplers

As long as you align the motor and leadscrew properly then you can use your solid coupling just as you've made it.
If you are asking if you should purchase a coupler of sorts, then I would suggest you purchase some flexable couplings. Although Im not aware of any that are threaded (ID) on 1 end , so finding one may be difficult.

Regards,
Jim

Kory Hamzeh <kory@...> wrote:
I'm kind of a newbie at this and I'm trying to interface the Frog to my
lathe. The end of the leadscrew on my lathe has an external M8 x 1.25
thread, about 8mm long. The stepper motor is a nema 23 with a 0.250"
diameter shaft. I was wondering if the group members had suggestions on a
good coupler design. I machined a "hard" coupler out of aluminum threaded
one side to screw on the leadscrew and reamed on the other side for the
shaft. Each side has a couple of set screws to hold it in place. I was told
that you don't want to use a hard coupler and I kind of believe it -- any
slight misalignment of the motor causes the friction to go through the roof.

Any suggestion would be greatly appreciated!

Thanks,
Kory



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