I have been working with a small model for a mechanical object to try to figure out constraints and how they work. Everything works mostly as it should except for one cylinder.

You can see from the diagrams, I have two objects named “CYL_01” and “CYL_01_Rotation”. I would like to make CYL_01 “stick” to the rotation point of CYL_01_Rotation, but I already have CYL_01 point constrained at it’s rotation point to the larger object to the left. Best I can come up with for now is to aim constrain CYL_01 to CYL_01_Rotation which keeps the two object aligned, but not sticking together. I’ve tried parenting a locator to each object and point constraining those which doesn’t work.

Everything else has the rotation points with a point constraint and where needed an aim constraint.

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I think you can solve this with a group. Group cyl_1. then point constraint the group to the big object. and the actual cyl_1 to the thing its rotating against.