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Author: pfeinstein
Time: 11/17/12 13:10 PST
This is a reply to message no. 11901 by rorobert
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Current Topic:
geometric tolerancing

One common area of confusion within GDT is between parallelism and flatness. With, parallelism, a reference is made to a datum plane, while flatness is independent of a datum. As specified, the opposite face of the block must lie within two planes which straddle a plane parallel to and a certain distance from the reference point in order to be calculated correctly.

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My interest is on super duplex valves and other exotic alloy valves at The Alloy Valve Stockist, Barcelona, Spain.

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