Re: help procuring NEMA 23 stepper motor mount; first of many newbie questions

multi-volti@... wrote:

> From: multi-volti@...
>
> Hello:
>
> I'm new here courtesy of Hans W's recommendation.
>
> I want to interface a nema 23 stepper motor I have with a Kerk screw rail
> (I haven't bought it yet).
>
> I don't what kind of precision to expect a local machinist to be capable
> of (what if the guy makes levers for dumpsters?). I'm not a machinist,
> so I don't want to overspecify precision that may be unnecessary, or cost
> me more fingers than I can afford.
>

> Murray
> multi-volti@...
> http://users.softhouse.com/uptown/multi-volti/

Murray,

In general .001" TIR or better is used on precision shafts, couplings, etc. When bearing fitting
is involved tenths matter (a lot!)

I'm not a machinist either but I do have a small machine shop. I have a Themac tool post
grinder for the lathe and can do .0001" TIR over a short length on a good day. I have been
making a lot of ballscrew bearings etc.

I'm not a job shop but If you happened to be anywhere near the Chicago area we could
work something out. I usually let people use the machines free if they have the
skills and sign a little thing promising not to sue my ass off if they cut
off their hand. Otherwise I just try to work out a trade or something
If I do the work.

What I need right now is rigging help. The whole shop is moving to the facility
I built in north Georgia as soon as the Mountain passes are guaranteed ice free.

It's only about 20,000 lbs of cast iron.

Stuff is about to go on pallets. Thanks to my huge financial reserves I will be
driving the truck.

Leslie M.Watts
Illinois Tool Works
Corporate Advanced Technology group
(847) 657-4559
http://www.netcom.com/~leswatts/leswp.html