On Fri, 31 Jul 2015 07:58:08 -0400, "Jim Wilkins"
wrote:

"Pete Keillor" wrote in message
news
...........
I bought a two piece pot collet for finish the cap, I was getting
frustrated trying to chuck the mostly finished cap in the four jaw.
But now the collet body won't thread into my homemade draw tube,
although it will into the ones for the Hardinge mill. I'm going to
have to open up the threads on the homemade one a little, which I
hate
(re-registering the threading tool on an internal thread). Oh well,
if I mess up, I have the stock for another.

After that, it's paint it and run. Oh, and make a couple files.

Pete Keillor

You may find re-registering the bit in the internal thread easier if
you set the compound parallel to the ways so your X and Y adjustments
don't interact. 29 degree infeed isn't as necessary for light cuts,
and you can imitate it by feeding both.

I bottom the bit in the groove visually and then take up X slack while
turning the spindle by hand until the bit starts to shave a chip. It's
easy on a back-geared belt drive South Bend.

-jsw


^5!!!