Seeking point density for on-machine inspection

[dcopps]

I am seeking standards or specs that will answer the question, "How many points are required to be able to inspect and specify a surface?" I am interested in on-machine inspection, although info relating to coordinate measuring machines (CMMs) might provide a hint. I have access to ASME Y14.5 (Dimensioning and Tolerancing) but that does not specifically address this issue (or I haven't found it, if it does). Ultimately, I want to obtain an accurate assessment of surface profile variations.

Thank you.

Dale C.
Library manager

 

[KENAT]

I suggest anyone with input posts over in thread281-258567 to keep the answers together.

Posting guidelines faq731-376

http://eng-tips.com/market.cfm?

(probably not aimed specifically at you)
What is Engineering anyway: faq1088-1484​