Class III Hole is defined as:
Joint where close fit is obviously not required, and alignment of predrilled holes is difficult. Example; clamps, fairleads, instrument and equipment support brackets, junction boxes, lining trim, misc supports and brackets.
Well GD&T capture only shows tolerance of .2180 - .2290. When I measure the hole size its modeled at .1900. The author says that .1900 is the nominal value. Hope that answers the question.
He says an internal document (derived from ASME Y14.41-2012) gives them a preference to model the hole in...
Thanks CheckerHater
Well here is 2003
7.2.2 Size Dimensions. A displayed feature of size
dimension shall always include a tolerance.
(a) Size Dimension and Model Agreement. A size dimension
shall agree with the queried model value for the
same feature when the model value is rounded to the
same...
I not an expert on GD&T. My background is in electrical.
I have a general question related to dimensioning a 3D model. I have an issue where measurement on the hole size falls out of the tolerance. For example, the hole is modeled at .1900 but the tolrance is .218-.229. The author cites ASME...