datum is on a quadrant, how do i construct

[[Br...]]

Hello!  I have a part that has it's tertiary datum marked on the quadrant of this slot-shaped part.  I cannot for the life of me figure out how to construct a quadrant point on the circle.  i'm using Calypso.

Edited December 4, 2024

[[Je...]]

Hi Brandon.

Can you explain more about what you mean by "quadrant"?

Can you provide a brief sketch or image of the tertiary datum?

[[Br...]]

This part has 2 parallel sides, with radii on each end.  Say for instance, 2" wide, 3.5" long, with 1" radii on each end.  Datum A is top face, Datum B is one of the straight edges and Datum C is the high point on the 1" radius on one side.  I hope that is clear enough for visualization.  EDIT  example picture attached.  I cannot for the life of me achieve establishing datum C.  I'm VERY green on this software, hopefully training is in my near future.

Edited December 4, 2024

[[Ma...]]

Are you sure about using only one side as datum? Usually datums here are symmetries.

For that would work using 3d line with recall of centers of circles. Then intersection of circle and 3d line would give you that point.
Or you can make symmetry from sides and make intersection with that - depending on real part it can give you different results.

[[Br...]]

Yes, I am absolutely sure.  The customer's print is clear, the datums are shown as in the example above, not a misinterpretation like datum C would be centerline of the length of the part.

[[To...]]

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It depends on how the Datum Identifier is placed with regards to the dimension line.

[[Br...]]

I was able to get some help from zeiss CIC.  Created curve then constructed minimum coordinate point.  Thank you for your help!!

[[Je...]]

Hi Brandon!

It's great to hear that the smart application specialists at Zeiss were able to assist you.  I utilize that option frequently.

The curve minimum point is a decent strategy to define Datum C.  Keep in mind that the point chosen will be defined by the alignment for the minimum point coordinate.  Make sure that said alignment uses Datum A as primary and Datum B as secondary.  This will follow design intent.

Another option would be to use an intersection between the symmetry of the slot and the curve feature.  There are other possibilities as well.  Glad you found a solution!