RE: [CAD_CAM_EDM_DRO] Two Ballnut adjuster fitting?

I did. I took two ball nuts. I oriented one so that the 15/16" thread
would screw into the drive nut. The other ball nut was installed back to
back against the first ballnut but with out the balls in it. I then
loaded the balls ( I find it easy to do) and then sligly turned the
ballnut one way to adjust the slop to zero. I then ran the ballnut back
and forth to make sure it was consistent. Last I tack welld the junction
between the two ballnuts to lock it there. If you want I can email you a
picture.
Dan

-----Original Message-----
From: Torsten [mailto:torsten@...]
Sent: Tuesday, June 24, 2003 10:04 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] Two Ballnut adjuster fitting?


I am trying to save some money by making
a Backlash free Ballscrew setup with two
regular Ballnuts.
Now I need to design a adjuster fitting that
will go inbetween the two Nuts and allow then
to be adjusted to take up the backlash.
Preferably also with some spring action to
account for possible pitch errors on the screw.
May first attempts would probably work but
they are somewhat complicated and timeconsuming
to build.
Has anybody figured out something that works and
is resonably simple?
Any Ideas wellcome.



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