Valid DRF

[JacobCheverie]

I have attached an image. Is it valid to call out a position to this DRF [Ø|.005|A|B]? Translation along the cylinder axis direction is not locked.

When can/can't you define a DRF without all 6 DOF locked down? I am seeing this often.

AB DRF.png

[louisd]

Yes, you don't need all 6 dof constrained to locate tolerance of position. you only need 5. the location would be relative to the midpoint/centroid of the feature of size if it is the undefined 6th degree, or not relevant at all, in the case if A was perp to B.

controlling alignment would be Level & origin Z to A, no rotate. Origin XY to B centroid.

[JacobCheverie]

Thanks louisd !

[AndersI]

Shouldn't the X origin be a best fit, translate in X only, on the dimensioned features?