Diamond; Mod Squad
- Mar 27, 2005
- Northwest Indiana, USA
I have posted this here before but will ask.
Is "feel" on a gauge block being all nice and flat different than "feel" on a turned or ground shaft?
Is this worse with calipers as the nice block sort of squares up the jaws when checked?
Yes it sure is, depending on the tool being used and the pressure being applied. Think about it this way: pressure per square inch. You have the entire anvil of a mic in contact on a flat part. Only line contact on a diameter - assuming it's perfectly parallel. Equal force will compress one farther than the other. That's the nice thing about low pressure or non-contact measurement methods.