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My Problem is maybe a rather simple one. I want to build up a simple Model of a Flettner Rotor. So it is just a fixed SupportStructure with a Motor/Revolute (fixedBearing) on top, that spins a hollow cylinder around it. At the Bottom there should be a loose fit, which i am not able to model... On the attached pictures you can see the built up model and an animation of it. It is possible to simulate it without the "RevolutePlanarLoopConstraint". I have to connect both structures again to model a second loose bearing. Because you have to create a loop, i tried all joints and constraints like "RevolutePlanarloppConstraint". In my opinion it should work ;) No matter in what combination, i wasnt able to built up this connection. There is always the same error...(picture) I cannot use the Rotor1D or something else, because i want to replace the bodys with existing discretized beam models later. I think it is a typical problem of a locational/loose bearing combination, and i hope one of you has maybe a simple solution for it:) Sadly i dont have the reputation to post images...

Kind regards Paul

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    We could help you better if you add the code of a minimal example and include the error messages as text. – marco Nov 11 '22 at 12:01

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