Assemblies - Using different connection types on a single mate.

Cobalt_Echo

In my assembly, I have an arm that I want to push the door open with.  I need the end of the arm to basically be a ball joint + planer joint to simulate the arm moving however it wants to on the door.  I can get one or the other, but not both types to work at the same time.  Any suggestions?

Assembly 1:  https://cad.onshape.com/documents/686b26b7c6bc46d6b7123e94/w/d32355be0cd85d20b5355e5b/e/de29d7c44ccb179fc4335142?renderMode=0&uiState=63249350600a5e345c721835

eric_pesty

I think you will need to insert an intermediate "helper" surface (just a flat face should work I think): mate that flat surface to the door with a slider mate (with limits so it can move away from the door but not through it), then mate that surface tangent to the ball end of your arm.

Cobalt_Echo

@eric_pesty I tried what you mentioned, using something in the middle.  No luck.  Setting errors still.

eric_pesty

@Cobalt_Echo
Change the planar1 mate to a parallel with 0 max z limit.

tim_hess

Or - try using a tangent mate by selecting one edge of the arm (the edge closer to the hinge) and the face of the door.