Assigning a GD&T datum axis to the centerline of a tapered hole

Assigning a GD&T datum axis to the centerline of a tapered hole
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Posted by: Tunalover ^®

04/15/2006, 11:26:59

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Can anyone lend some insight into how to do this? It's easy if the hole has a constant diameter but what if it does not? ASME Y14.5M-1004 doesn't cover this scenario, nor does Drake's book or Wilson's book!

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Re: Assigning a GD&T datum axis to the centerline of a tapered hole

Re: Assigning a GD&T datum axis to the centerline of a tapered hole -- Tunalover Post Reply Top of thread Forum

Posted by: Kelly_Bramble ^®

04/15/2006, 14:55:25

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You do the same as identifying a countersink hole feature as a datum. If you are specifying the tapered hole with two diameter dimensions, then just create a section view and indicate to the surface of tapered hole feature with your datum anchor symbol.
When using a single dimension (dia. Size X Degrees angle), then attach the datum to the feature of size dimension.

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Re: Assigning a GD&T datum axis to the centerline of a tapered hole
Re: Assigning a GD&T datum axis to the centerline of a tapered hole -- Tunalover	Post Reply	Top of thread	Forum