Re: [CAD_CAM_EDM_DRO] Rotating nut ballscrew

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

Leslie Watts wrote:

>Agreed rotating screw would not work here. Spinning the nut
>could be ok but there are some issues if they are not specifically
>designed for it....like dynamic balance and grease slinging. The
>drive for rotating nuts is a bit complex and expensive as well.
>It does have great advantage though.
>
>If you went with the belt and could handle perhaps .1 mm repeatablity
>and somewhat less stiffness that would be the best bet. Speeds of
>10 m/min or more would be easy.
>
>The other Les
>
>
>