5551
General Mach Discussion / Re: Problems threading on the lathe
« on: October 20, 2009, 09:57:08 PM »
ART,
Two more tests as follows all decreasing in pitch. Distances are from the start point.
RPM SCRIBE PITCH 1" DIST 2" DIST 3" DIST 3.4" DIST
------- --------- ---------- ------------- ------------ ------------ --------------
115 1 / SINGLE .1 (-) .001 (-) .0032 (-) .0038"
402 2 .2 (-).0018 (-) .0046 (-) .0078" (-) .0089"
DATA REPORTS ATTACHED
RICH
MODIFIED: ADD PICTURES
Two more tests as follows all decreasing in pitch. Distances are from the start point.
RPM SCRIBE PITCH 1" DIST 2" DIST 3" DIST 3.4" DIST
------- --------- ---------- ------------- ------------ ------------ --------------
115 1 / SINGLE .1 (-) .001 (-) .0032 (-) .0038"
402 2 .2 (-).0018 (-) .0046 (-) .0078" (-) .0089"
DATA REPORTS ATTACHED
RICH
MODIFIED: ADD PICTURES