Re: Ballscrew machining, FAQ

Hi Chris,

Why not machine a short collar, bored to a close sliding fit over the screw
and with a concentric outside - i.e all machined at one setting or. at
least, with the outside machined whilst the collar is held on a stub mandrel
which has been turned and left in situ. This will give you an accurate way
of setting the screw accurately and you can slide the collar anywhere along
the screw to test with the dial gauge.

Ian

--
Ian W. Wright
Sheffield UK

----- Original Message -----
From: <stratton@...>
To: <cad_Cam_edm_Dro@onelist.com>
> Problem is the screw is .508" in diameter, too small for a 5/8"
> collet. Given that it's a screw, I don't see any easy way to indicate
> it in in a four jaw chuck, and my three jaw is ready for the scrap
> heap