Re: Side effects to running servo motors 1:1 ???

Thanks,

Now where would one find the correct smaller pulley and belts for the
motor?

My motors have a .312" diameter shaft.

The X/Y leadscrews have been converted to ballscrews, I used the 5/8"
(I think) leadscrews from McMaster-Carr.

One thing that does concern me is that I've noticed that now (might
have happened before the conversion) is that I am getting the bracket
where the X ballnut is mounted will flex a little while turning the
handle.

Mike

--- In CAD_CAM_EDM_DRO@y..., "Dan Mauch" <dmauch@s...> wrote:
> The shoptask uses a 42 tooth timing belt pulley on their leadscrew.
If
> you have a servo motor such as the ones that Jeff Davis and Bill
> Wainright sell then you can easily use a 14XL037 timing pulley with
a
> 150XL037 timing belt. This will give you a 3/1 ratio and plenty of
> power.
> I have done this on a Shoptask that was lent to me for 3 months and
it
> worked great. The motors are 420 oz in peak torque and ran barely
warm
> on 36VDC. It isn't hard to make a motor mount for C23 frame motors
and
> they seem to be the best solution for the shoptask machine.
> A 1:1 ratio may work for a short time if you have the original acme
> leadscrews and run it quite slowly.
> Dan
>
> -----Original Message-----
> From: mueller914 [mailto:mmueller@n...]
> Sent: Wednesday, October 09, 2002 4:52 PM
> To: CAD_CAM_EDM_DRO@y...
> Subject: [CAD_CAM_EDM_DRO] Side effects to running servo motors
1:1 ???
>
> Upon looking at my CNC conversion mill/lathe (Sloptask) it seems
like
> it would be easier right now to run the servo motors 1:1 instead of
> 3:1 or 4:1 as recommended.
>
> for a short period of time, any problems with doing this?
>
> i'm not worried about speed or torque (as long as the motors can
move
> the X/Y)
>
> thanks
>
>
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