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Basic dims

thread174-398774

Basic dims

Basic dims

(OP)
Our company is diving into GD&T once again. We took an online course but it didn't cover what I am asking. Many sites I've been looking up state a drawing is not done if the basic dimension is not toleranced. Either by note or from a feature control frame on the feature it is referencing. We are at a quandary about what the note should be (& we don't mean the "see CAD file for basic dimensions" or something of that nature). Any samples or suggestions as to what it should be?

RE: Basic dims

forum1103: Drafting Standards, GD&T & Tolerance Analysis may be a better place.

Basic drawing do indeed need a tolerance*

The note could perhaps be a general note somethign like "UNLESS OTHERWISE SPECIFIED SURFACE PROFILE TOLERANCE OF .010 APPLIES TO ALL SURFACES" - but that may not be the most effective implementation of GD&T.

*There are actually a couple of exceptions but they're a bit esoteric for day to day understanding.

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What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?

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