Problems with creating an intersection between a curve and a plane

[[Ja...]]

I am having some issues where I am trying to create an intersection between a curve and a plane. From the screen shot below, both features are highlighted red, although the ran fine and show correct actuals. It just wont create an intersection. I need this to report the diameter of the end of the curved feature.

The model I am using is the finished machined cast drawing. I am measuring to the casting print, which is why the plane is not on the actual geometry shown.

Diameter to capture (casting print)
No Result for Intersection

[[To...]]

Can't answer your question but....Is this a case where the drawing is requesting a profile and your customer wants to see the diameter for a BASIC dimension?


Is the shape a radius or a spline? Something is telling me that if the curve does not actually intersect the plane, it won't work. I just tested this. A circle feature works but a curve does not.

[[Ja...]]

The feature is a radius (R 6.37). If the curve continued further, it would intersect the plane.

If I create an circle, I only get about 12 degs of arc, but it does generate the intersection. I am using curve so I can do a Line Profile of .080 to ABC.

And you are correct about the BASIC dia.

[[To...]]

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Recall the feature points from the curve into a circle

[[Ja...]]

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I so forgot about doing that. 😱

[[To...]]

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Does your curve cover other areas of part beyond radius? If so, capture only the points that are related to circle.

[[Ja...]]

No, just the radius in four places. I recalled the points and now I get the intersection i need.

[[Ja...]]

I do have another question, I am scanning a diameter, but it is so out of round, the probe is air scanning part of it. How do I get the probe to maintain contact, without using curve?

[[To...]]

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Scan very slowly or take single points.

for locational issues, measure the circle with a few single points and then reference the points circle on the scanned circle.

[[Ja...]]

This is being a pita. This is my last hurdle.

I created a curve using recall points from a circle i scanned previously for four position. #1 looks good, lines up where its supposed to, but #2, 3, and 4 are all offset form teh circle they were created from, yet those circles are spot on.

Circle 2
Curve 2 - recall circle 2 points

[[Ma...]]

Whenever you are creating curve from recalling points be sure recalled feature DOES NOT containt measured data. Otherwise you are creating curve NOT from nominal but from measured data and from center of probe ball.

And when you are recalling from circle or cylinder - it's angle of start sometimes screw curve. Only way i prevented this was using start angle of circle/cylinder set to ZERO and adjusting angles in strategy.

[[Ma...]]

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When this happens I typically create a single point circle above the circle I want to scan. I will name it Pre-Circle.
For example:
Pre-Circle1 (3 or 4 single points)
then my scanned circle
Circle1 - now go to Projection/ Measured Features and Select Pre-Circle. This will use the actual of the Pre-Circle1 to locate the circle scan.

[[Ri...]]

You can use "Meas. Ref." to add a four point check within the circle.
This will calculate an as found location for the scan.

Capture.PNG

[[so...]]

apply constrains to the circles that you have recalled with feature points.
In this case you will check radius under constrains box.
Sonali