Wall thickness

[[To...]]

I am looking at a tube-like feature. The OD is specified with a diameter tolerance, but the ID is not.  It is asking for a wall thickness.  I set my program up to measure the cylinder because it is a datum feature, using 3 circle paths.  I created 3 circle features that recall the feature points from each circle path of the cylinder to report local size and form characteristics.  Then, I take 4 points on ID at the four 90° quadrants at the same depth as each of the circles. Next, I created four caliper distances from each point to the circle.  I know there has to be an easier way.  I am open to any suggestions.

 

 

Edited Wednesday at 11:56 AM

[[Ma...]]

If you would have circles at same height and mesured points against each other ( both circles with 4 points by 90° ) then you could use caliper distance and switching min / max to get wall thickness for desired axis ( switching from "MIN-MAX" to "MAX-MIN" you will get opposing side )

[[Ha...]]

For these features, I generally prefer the curve function "Curve Distance"

[[DW...]]

Assuming the OD and ID are relatively concentric, maybe result element formula (outside diameter minus inside diameter) divided by 2?

[[Ri...]]

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This is the way. 

[[To...]]

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Given the manufacturing method and the tolerance, I don't believe this warrants 360° coverage.

[[Lu...]]

Maybe Create a theoretical plane that is perpendicular to the cylinders, project/intersect(not sure which one is better for this situation) the cylinders  onto the plane, then create theoretical lines that is also on the theoretical plane that starts from the center of the 2 cylinders and intersects both of the the projected/intersected circles that were put on that plane, and have those lines at whatever angles you would want. then get the distance between the 2 points created from intersecting the line through both circles?

I'm sure someone else can come up with a simpler/better solution than that, that's just something I've done in the past.

[[Ri...]]

I have not tested this theory.

If I create a circle with 6 equally spaced points, and the other circle with 6 equally spaced points and report "Radius measurement" for each circle. The points should oppose each other.

If PCM can allow us to select each point separately in a Result element, could we report the distance between each point? Then use Min and Max for reporting.

[[Ma...]]

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That's the way you would use. And Better to use internal and external cylinders. And than by filtering maximum/ minimum material on both elements, you can take value of max and Min thickness.

Edited Wednesday at 08:16 PM