Cone-Cylinder intersection to establish intersecting point

[[Ri...]]

I have a round part with a Cone located in the ID_Bore(Cylinder).
There is a dimension defining the distance from the face of the part to the transition point/intersection of where the bore and cone meet.

I tried to create an intersection with the ID_Bore(Cylinder) and Cone, but the point it calculates as the intersection point is not correct.

What is the best method for constructing the position of where the ID_Bore and Cone meet form?

Thank you all!

[[To...]]

Did you select "Shell" on the cone and the cylinder?

Then, create a Cartesian Distance with the intersection as Feature 1 and the Face Plane as Feature 2

[[Am...]]

When you made the intersection did you check the "shell" box?

Another way to do it would be making that intersect with 2d lines using the section CAD tool, this will of course only give you that distance on the one point.

[[Ri...]]

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Interesting.
And No, I did not tick shell on either feature.

I can't say that I know what selecting shell actually does.
But, thanks to your advice I can see that it does calculate the correct location when selected, thank you!

If anyone has any supplemental information regarding the shell function on intersecting features I would be greatly appreciative!

[[No...]]

Without "Shell" ticked, it calculates the intersection point of the cylinder and cone axes (which would yield no result if both were of ideal shape and position, because they are parallel. If you get a result in this situation it's only because in reality there are always small deviations).
With "Shell" ticked, it calculates the intersection element of the outer shells of cone and cylinder, in your case a circle (ideally).

[[Am...]]

Turning on shell treats that feature as the actual shape. If you had a cylinder intersecting a plane by default the intersect is going to be a point where the axis of the cylinder hits the plane. If you turn on shell for the cylinder the intersect would result in a circle on the plane where the actual surface of the cylinder would intersect. Without the shell (actual surface of the shape) the cylinder is treated as an axis/3D line.

[[Da...]]

There's a special construction element called "Cone Calculations" for this:

[[Ri...]]

Yeah - that works the same as Intersection and turning on Shell.

The Cone Calculation function just simplifies the process.

[[De...]]

One issue with both of these methods is that they produce an intersection that is a circle with perfect form.

In many cases this is good enough and works as is.

In some situations when the tolerance is tighter they can give more error.

If you need a more accurate check of what is going on, it is also possible to create two 2d Lines and intersect them.

So for instance create one line on the cone and one on the cylinder. On both lines add a circular pattern to repeat the lines around the circumference of the cylinder. Create intersections for each. Now recall all of those intersections into a circle and you will have a circle that includes the form of the actual intersection.

Kind of a pain, and not always worth it, but I have seen several cases where this method gave me accurate results where the other two methods were questionable.

[[An...]]

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I was really wondering about CALYPSO's calculation when it comes to shell or not shell.

Contribution_01_07_2019.pdf

[[Ri...]]

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This can also be faster at times too.