Visual3D's default export to OpenSim only supports the OpenSim “gait_2392.osim” and “gait_2354.osim” models. This means in Visual3D you must have all the segments required for these models.
It is possible to define your own custom OpenSim model in Visual3D, and export the MOT files by going to “File → Export OpenSim From Data Tree”. However, this process requires an experienced Visual3D and OpenSim user who knows how to create a Visual3D IK that matches the degrees of freedom in their OpenSim model. The user must also be able to read their osim file to determine the names of the data that need to be copied into the Visual3d OPEN_SIM, OPEN_SIM_GRF and Metric::Open_Sim_Scale folders.
A sample data set that can be used with the manual export can be downloaded.
The model in the CMO file is a simple example of the “gait2392_simbody.osim”. To export the MOT files from this CMO, you will need to follow these steps:
If all goes correctly this files should be ready for import into OpenSim.