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Re: Hole Position to -A- only

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Posted by John-Paul Belanger (205.188.209.103) on December 11, 2002 at 20:52:33:

In Reply to: Hole Position to -A- only posted by Joe on December 11, 2002 at 15:49:53:

First, I assume you mean that the hole intersects with datum A. In that case you cannot position a single hole to the datum, since there really is no distance from the hole's axis to datum A. But this idea of a single datum does work when positioning a pattern of holes -- because you are positioning the holes to each other, and then datum A would control perpendicularity. (Even back to your classic example of positioning a hole to datums A, B, and C, the "A" datum really only controlled perpendicularity.)

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Subject: Re: Re: Hole Position to -A- only

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: First, I assume you mean that the hole intersects with datum A. In that case you cannot position a single hole to the datum, since there really is no distance from the hole's axis to datum A. But this idea of a single datum does work when positioning a pattern of holes -- because you are positioning the holes to each other, and then datum A would control perpendicularity. (Even back to your classic example of positioning a hole to datums A, B, and C, the "A" datum really only controlled perpendicularity.)

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