Reply To: How to define a rigid surface for a solid

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Hi, I know how to set the part as a rigid body. But after I set the drive part as rigid body, I have the following problem:
   The drive part is not fully meshed, why is that?
   I want to add a distal displacement to the surface of the drive part that rotates around the Z axis, which will conflict with the constraints of the rigid body.

I want to achieve something like figure 3 and 4.