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Overdefined 3D Sketch at Triple Plane Intersection?

Question asked by Romain Louon on Feb 23, 2017
Latest reply on Feb 27, 2017 by Elmar Klammer

Hello, I have an issue that's driving me absolutely crazy. I have a 3D sketch that is set on a plane, and I need a point on this sketch to intersect two other planes. Yesterday I did this exact thing and no issues occurred.

Trying to do it today is giving me an overdefined error. Even if I go back to the old sketch from yesterday which is fully defined, remove the intersection relation, and try to add that exact same relation back again, it's now overdefined.

To make things even crazier, when I leave the "overdefined" intersection relation and use the Diagnose option to solve the sketch by removing certain other relations, I can then add those relations back on manually and the sketch becomes fully defined.

I've even created an axis from the intersection of the two planes, Plane 2 and 3 in the screenshots. Trying to create a coincident relation between the point and axis created the same error, but manually dragging the point to the axis and creating the relation that way worked fine.

I've included screenshots of what's happening at the bottom.

Does anyone know what could be causing this, it makes no logical sense to me.

Thanks for any help.

Edit: It doesn't even need to be an intersection, trying to create an On Plane relation between the point and either Plane 2 and Plane 3 causes the same issue.


Screenshot (32).png

The sketch from yesterday with the triple plane intersection working perfectly.


Screenshot (33).png

Removing the intersection relation, moving the point slightly, and trying to add the relation again causes an overdefined error.