Re: Rotating nut ballscrew

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Les Newell <lesnewell@f...>
wrote:

> Thanks Les,
>
> It looks like you have confirmed my gut reaction is that I am

asking for

> trouble rotating the nut this fast. 0.1mm repeatability is fine as

the

> machine is only going to be doing basic wood routing/signmaking

jobs.

> The screws are low grade ones anyway so their backlash is probably

not

> brilliant either. If I need to do precision stuff I have always got

the

> Bridgeport.
>
> Thanks,
> Les

LOW GRADE ? ??

Then make a plastic sleeve and put it in a bearing and moung a pulley
on that. No oils, no balls and it works. The only concern is if
you run at high speeds for too prolonged a time and the plastic gets
too hot.

I have kinda poor pictures of mine as it is under the table and hard
to get a picture of it.


Dave



Dave