Re: [CAD_CAM_EDM_DRO] Rotating nut ballscrew

In a message dated 12/10/2004 3:18:39 PM Central Standard Time,
lesnewell@... writes:

I am planning a router (about 600mm x 1200mm) and I have some suitable
ballscrews. The problem is that they are only 4mm pitch.<<
No, they are NOT "suitable" for a router-table of that size! As you seem to
realize, if the screws rotate, the long one, at least, must be at least an in
ch in major dia. If the nuts rotate, I think you should have at LEAST a
half-inch lead (0.5" per turn), or the rotational speed will cause centrifugal
force that will PROBABLY screw-up ball-circulation. And will "sling out" any
"ball-lube". A mess. Jan Rowland




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