Re: Any exciting on topic Christmas presents?

Steve,

The motors are possibly too big physically! the 23's are a better fit
there. As for the torque, 70 oz/in on a Sherline (20 tpi) is about the
minimum, and you have 10 tpi leadscrews. So I'm thinking you still
could use 150 oz/in or so. 1/4" shafts on the lead screws? Hook 'em up
and see how the axis move!

I DON'T believe the 30 oz/in would do at all. IMO ;>)

Alan KM6VV


Steve Greenfield wrote:

>
> --- In CAD_CAM_EDM_DRO@egroups.com, "Tim Goldstein" <timg@k...> wrote:
> > Considering the effort that is going into discussing the definition
> of a
> > marketing HP rating, I figure that everyone must have some spare
> time on
> > their hands???
> >
> > Anyone get anything for Christmas that is related to the pursuits of
> this
> > list?
>
> I got an XY Mill/Drill table from Enco, going to use it as the basis
> of a small milling/engraving table. 7.5 by 11 inch movement.
>
> Already had the steppers, 150 oz-in 4.7A Unipolar NEMA 34. Or do you
> think that these will be overkill for this? I also have some NEMA 23,
> unknown torque brand new steppers. The leadscrews on the table are
> 10tpi Acme screws. I'm not planning on trying to cut steel, hardest
> material probably plexiglass and aluminum.
>
> I'm considering a small trim/laminate router for this, or my Dremel
> since it has speed control built in.
>
> If the smaller steppers will do (I'm guessing they are at least 30
> oz-in) I'd rather save the heavier steppers for a future project.
>
> Steve Greenfield