Re: [CAD_CAM_EDM_DRO] Rotons freewheeling crashproof ballscrew

Doug Fortune wrote:

>
> Jon Anderson wrote:
>

> I just went to their site, and they've got this neat thing called a
> freewheeling ballscrew (where continuous rotation at the end of
> thread just keeps recirculating the balls round and round with
> no linear movement) thus preventing a crash. Sounds great to me:
>
> http://www.roton.com/freewheeling/freewheeling.html
>
> Doug
>

Read the PDF file on the freewheeling ballscrew, first page
under the paragraph "Effective Lead" their words... "It will
take slightly more revolutions to raise a load than to lower
a load using a freewheeling ballscrew".

I'd hate to have one of those on my Z axis.


Bill