Results 1 to 10 of 112
Threaded View
-
04-10-2008, 03:07 AM #11
Hey, quit poking me!
I agree with you, the DMT D8Cs on average could very well be flatter than .001". I actually took the one I had to a local active machinist with decades of experience. He thought my interest in checking out the flatness of that lapping plate was interesting enough to throw caution and in the end one of his older but accurate dial indicators to the wind (D8C ate it up in the testing process of course). Mine was within the .001" tolerance and the flatness varied across the surface of the plate but stayed within that range.
Agreed also that the GDLPs on average could step outside the .5 micron flat claim. I do like mine for the recessed surfaces as it really helps during lapping. Even with the recessed surfaces, toward the end of the lapping process I can life the GDLP and the stone held by it in the air for about 3 seconds. Impressive in my book.
Lynn, when you say you use the 4K and the 8K most, are you referring to the Norton or the Shapton ceramic stones? Did you mean you're going to buy a backup Norton or Shaptons?
Thanks guys.
Chris L"Blues fallin' down like hail." Robert Johnson
"Aw, Pretty Boy, can't you show me nuthin but surrender?" Patti Smith