THIS FORUM IS NO LONGER ACTIVE. PLEASE POST ANY NEW QUESTIONS OR DISCUSSION ON:
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Kangaroo is a Live Physics engine for interactive simulation, optimization and form-finding directly within Grasshopper.
Daniel Piker
If only one of the rigid bodies is free to move, then you don't even need to simulate the other one.
Just anchor 2 points of the one that can move, like this:
Oct 19, 2017