Re: [CAD_CAM_EDM_DRO] Re: Good source for MaxNC-10 Belts anyone + Speed

Dan,

I haven't been following this thread and maybe asking a question that has
already been asked.

What are the specifications of these motors? i.e. size and power and are you
stocking them?

Terry

> I used some buehler dc brush type motors with 200 CPR encoders with a

direct

> drive on the X axis of the sherline. I got 72 IPM which means that the 20
> TPI leadscrew in the sherline was rolling along at 1440 RPM. I measured

the

> force using a spring scale at that speed and released the tension at 25lbs
> which would probably cause significant deflection of the Z axis if you

tried

> to machine at that speed.
> What really surprised me was after I posted that information on the

Sherline

> group there was not a single comment so I guess that there was really no
> interest in it. Because I really thought this would be idea for the
> Sherlines or other minimills.
> Dan
> ->Would like more speed and have read with much interest the comments on
> >70+ ipm being achieved by Dan Mauch, using 1/4-20. Dan, can u or others
> >inform us how u got such a high speed? Also what is the reduction in
> >machining time on a 3d finishing pass versus standard machine?