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GD&T Envelope


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I am increasingly seeing the Envelope requirement appear on our companies drawings. (Letter E in a circle) My understanding is that this requirement is a combination of several other GD&T elements, is there some way of reporting dimensions to this requirement in Calypso2619_b1fff6eb978ed401e4567efbc95a0172.jpg
TIA
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  • 2 weeks later...
In the characteristic 2-point diameter there is a radio-button for Envelope condition. This will make Calypso evaluate (for a hole) the maximum 2-point diameter as max-value and maximum inscribed cylinder (or circle) for the min value. For a shaft it is the other way around.

This is not a perfect approach since it will only evaluate 2 point diameters from the same circle path but for machined parts it should be fine.
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