Originally Posted by
Eldon_Joh
you need two delrin blocks, one on each side of the ball nut. but yes that would work. you could use a magnet in the delrin block to cause it to stick to the ball nut.
i doubt anyone has tried to solve this problem before because the ballscrew whip is as much a problem as is the compression of the ballscrew itself.
meaning when you run into a situation where the ballscrew might whip, you also need it to be thicker so that its axially stiffer.
some of the big machines have gun drilled ball screws (probably machined from dom tubing, but that doesn't matter.) and coolant flows through the ballscrew. the lost mass due to the hole in the middle translates into a higher natural resonant frequency, so that works to solve the problem as well.