Re: [CAD_CAM_EDM_DRO] Re: rolled ball screws

Hi
I have not made a preloaded nut so this is only in theory but I think
you will be able to reduce the back lash further by preloading the nut using
a wafer style spring washer. There will always be some error in lead and
pitch diameter so if you take out all the play with a double nut that has no
"give" it will bind some were along the travel. If you adjust the nut to min
clearance then use the preload to do the little bit of slack thats left, your
system will be at its best. My 2cents Josh


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