Re: Belt drive

Some time ago I wrote a program to do pulley c-c- calculatios, actually
it was for finding combinations of belt & pulley sets for a two-stage
reduction. If you don't come up with something more immediatley useful,
e-mail me direct & I will see if I can find it & send you the source to
play
with.

Bill Martin
wmartin@...
wwm@...

Ron Ginger wrote:

>
> From: Ron Ginger <ginger@...>
>
> I have ordered one of the new Grizzly mini-mills and plan to make a CNC
> machine out of it. I am viewing the mill as a 'part machined kit of
> castings' I expect to throw away just about everything except the
> castings, scrape them to a good fit and build up from there.
>
> I intend to use belt drive between the stepper motor and the leadscrews.
> Are there any tips on setting the correct pulley ratio?
>
> Anyone have a program that calculates belt length given pulley diameters
> and center distance?
>
> Where is the best place to order belts and pulleys?
>
> What is best to tension the belt- slotted screws for mounting or an
> idler pulley?
>
> Ive got some nema34 steppers of 250oz/in rating. Are these likely to do
> this small mill?
>
> thanks for the tips,
>
> ron
>
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> bill,
> List Manager