Thanks Jordan, it is an interesting program. Several similar features as SimLab. However, I did not see the ability to add animations. Maybe it is there and I just missed it. The SimLab Composer software also give the ability to convert my models to WebGL but I like looking at other software. No one piece seems to fit all environments. I did see many interesting features with Tetra4D.
After doing a little more research, it seems to me that I might want to go down the WebGL road a little more than the 3D PDF. A lot of obstacles on that one since you can no longer play them in a browser window.