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  1. 27-12-2009 #2
    irving2008's Avatar
    Lives in NW London, gateway to A1 & M1, United Kingdom.
    irving2008
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    Quote Originally Posted by Wobblybootie View Post
    Just wondering if anyone has thought about spinning the Ball screw nut, keeping the Screw itself immobile? You wouldn't get the Screw whipping etc. There has to be a downside but I cannot see it ...
    Yes its been done before and it works well.. and the downsides are:
    1/ the motor driving the ballnut is on the moving assembly so adds to the weight needed to be moved
    2/ the ballnut has to be driven via a timing belt or similar arrangement which just makes things more complex...
    Last edited by Lee Roberts; 28-12-2009 at 01:28 AM. Reason: Spelling der !!!
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