Reference dimensions on blueprints
Reference dimensions on blueprints
(OP)
Many times I see a dimension on an engineering drawing such as 3.5 REF. What does a reference dimension refer to and is it considered critical?
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Reference dimensions on blueprints
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RE: Reference dimensions on blueprints
REF - usually means that the dimension is not used to specify the part but may be used in some other construction or quality control function.
RE: Reference dimensions on blueprints
RE: Reference dimensions on blueprints
ie ---- 3.5 REF --- can be shown as ---- (3.5) -----. This is easier and "smaller" to use with CAD drawings.
RE: Reference dimensions on blueprints