On Wed, 27 May 2015 22:05:48 -0400, "Jim Wilkins"
wrote:

"Bob Gentry" wrote in message
.. .
On Wed, 27 May 2015 18:11:05 -0500, "Terry Coombs"

wrote:

snip

Sounds to me like the feed screw is 16 TPI . The X and Y axes on
my RF45
clone are 8TPI , and advance .125/rev .

Yes, I see how the pitch determines the the advance. Just don't see
_why_ 62. grin
Bob
rgentryatozdotnet

Is the feed screw Acme?

Does not appear to be. The thread _is_ 16TPI and fits a standard 'v'
gage nice and tight except for the points which seem to be just
slightly flatter than standard.

As a side note. . The threads appeared to be buttress style. . . .
untill I hit them with a toothbrush and cleaned off the oil. grin

Bob
rgentryatozdotnet