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Planar mates not working
joshua_foxworth
Member, Developers Posts: 19 ✭
So, I had an assembly built out and working fine. I made a few changes that blew up the assembly and now, nothing seems to be working. Trying to do a simple planar mate results in nonsensical mates to items not even clicked.
In the image below, the bottom surface of the fitting is affixed to the square insert in the ring using a planar mate. Obviously, those two planes are not mated. The same happens for a fastened mate. Obviously, this does not function like the example (https://cad.onshape.com/help/Content/mate-planar.htm).
Additionally, attempting to set mate connectors on those faces results in the connectors being placed at the center of the ring. Literally, when I click on the face of the extrude, the mate appears at the center.
My guess is that the fitting is connecting to the center for the same reason that the mate connected, but that reason eludes me - especially when this worked yesterday.
What is wrong here?
In the image below, the bottom surface of the fitting is affixed to the square insert in the ring using a planar mate. Obviously, those two planes are not mated. The same happens for a fastened mate. Obviously, this does not function like the example (https://cad.onshape.com/help/Content/mate-planar.htm).
Additionally, attempting to set mate connectors on those faces results in the connectors being placed at the center of the ring. Literally, when I click on the face of the extrude, the mate appears at the center.
My guess is that the fitting is connecting to the center for the same reason that the mate connected, but that reason eludes me - especially when this worked yesterday.
What is wrong here?
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Best Answer
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NeilCooke Moderator, Onshape Employees Posts: 5,714Here it is reassembled:
https://cad.onshape.com/documents/b637a2d680ca53f8cd842e53/w/0acb9e6515ebf10c18daf346/e/00931d4f11abeae5be23c7f0Senior Director, Technical Services, EMEAI5
Answers
If you're still struggling can you explain what you are trying to achieve?
I eventually "solved" the problem by mating one of the bolts holes in the fitting to one of the bolt holes in the ring and then using the limiting factors to position the fitting accordingly. However, I do not believe that this is appropriate as it will cause problems when dimensions change.
I just want to mate the fitting surface to where it will be mounted.
Sometimes mates will fight each other to see who wins. If you reduce the conflicts (like using cylindrical instead of revolute if you can) you are less likely to run into issues.
https://cad.onshape.com/documents/b637a2d680ca53f8cd842e53/w/0acb9e6515ebf10c18daf346/e/00931d4f11abeae5be23c7f0
Pro tip: move the part close to it's final position before adding a mate. Rotation can be achieved by selecting the part and using the manipulator tool.
https://youtu.be/dedtskhiv5I