what controls concentricty when no callout?
what controls concentricty when no callout?
(OP)
I have a hamilton sundstand drawing with several diameters along an axis. The diameters only have feature of size tolerance.
No concentricity is listed for the multiple diameters. How is concentricity infered or controlled on such a drawing? What is the Y14.5 spec that can be used to answwr this question?
(the print states that it is to be interpreted by DOD-STD-100C, that spec points to Y14.5M)
No concentricity is listed for the multiple diameters. How is concentricity infered or controlled on such a drawing? What is the Y14.5 spec that can be used to answwr this question?
(the print states that it is to be interpreted by DOD-STD-100C, that spec points to Y14.5M)





RE: what controls concentricty when no callout?
RE: what controls concentricty when no callout?
It's a lazy way, just call out a spec and cross your fingers they line up.
Chris, CSWA
SolidWorks 13
ctopher's home
SolidWorks Legion
RE: what controls concentricty when no callout?
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The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.
RE: what controls concentricty when no callout?
Timelord
RE: what controls concentricty when no callout?
The standard answer to the particular question is "dead nuts/ same setup".
Things change.
Mike Halloran
Pembroke Pines, FL, USA
RE: what controls concentricty when no callout?
John-Paul Belanger
Certified Sr. GD&T Professional
Geometric Learning Systems
RE: what controls concentricty when no callout?
If this is a build-to-print contract, mention this problem to your legal department so that no one using this product can come after you/your company for making one that has faulty performance or so there is a defense in place under an as-is type of sale.
In similar situations, it is possible to make some money by generating an engineering development contract to determine such missing information. It could be based on engineering analysis, product testing, or inspection of similar parts for existing acceptable variations. Often an entire drawing package will be similarly defective, with references to difficult to obtain specifications, missing dimensions, missing tolerances, and unobtainable materials or processes.
RE: what controls concentricty when no callout?
Frank