I want to isolate the ball and a wall inside so I can then set them as a rotating wall.
Hi Vaggos,
Thanks again for your post on the forum! 
However, I can’t open your project. Please make sure it’s shared with support!
Best,
Igor
It would logically be the mistake I made initially with the new API.
Now?
Yes, it works!
Create
Greate*
Hi @vtsich,
You can start by hiding the other parts of your model (1), then select the outer faces of this cylinder (2) and hide selection (3):
Then, you should be able to see the sphere and the walls to apply boundary conditions:
Best,
Igor
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My problem is that i can’t select the ball to put it on a spinning wall. How do I set it up in edit CAD as a separate person?
In order to I add it in the simgeo
Hi @vtsich,
You can hide the outer faces as I’ve mentioned before then select the ones you wish to (1), create a saved selection (2) and it should appear on (3):
To assign the rotating wall, you should create a boundary condition and set it to the saved selection you’ve created:
Best,
Igor
Thank you very much!
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