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Drawing tollerance for a Referance dimention

Drawing tollerance for a Referance dimention

Drawing tollerance for a Referance dimention

(OP)
Do you apply the standard drawing tollerance to a Referance dimention?

RE: Drawing tollerance for a Referance dimention

Reference dimensions are for information only. They have no tolerance. They are not used to qualify if a part is good or not.

RE: Drawing tollerance for a Referance dimention

the tolerance would be determined by the other dimensions, or at the original reference of the dimension.

RE: Drawing tollerance for a Referance dimention

Jim990

Some times dim's on prints are easier to machine or manufacture, than it is to Inspect., so for manufacturing a ref dimension can be used to verify that the part is being fabricated correctly. It is depended on the type of product & the method of manufacture.
It helps the Inspector or the fabricator as a second verification.

It is not given a tolerance. however ref dimension can also be dangerous if it is the incorrect dimension.
so use them sparingly as not to cause issues.

I use them often for certain circumstance in manufacturing,to aid manufacturing & Inspection.

Mfgenggear

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