Jon, Thank you for the reply. I had missed the part about the sidedness of the half-plane, and sure enough mine was oriented the wrong direction! I swapped it 180 degrees around and now the skull rests nicely on the ground. This also explains why my simulations were taking a tremendous amount of com...

Hello, I am in the early stages of learning OpenSim modeling for my upcoming degree program and I am a bit confused about setting up object collision in Creator. I have downloaded a head/neck model ( Musculoskeletal Model of Head and Neck Suitable for Dynamic Simulations ) from the project database ...