mechanim weird behavior [Unity free version]

Hi Community,

I am getting started with animating a model using the mechanim system. I have a idle, walk, and jump state. The problem I am having is that I want to transition to a new animation when I hit a key, and then translate my model appropriately, without using any root motion.

• I have made sure Root motion is unchecked.
• I had to create an empty game object, then put a new child game object under it with the Mesh.
  • The empty game object (the parent) contains the Animator
  • The game object (i.e. child object with the mesh) is what has any colliders, rigid body, and the mesh filter.
• My model will translate, but the translation is exaggerated more and more as I move away from the origin.
• I have uploaded the source below, trying to keep it very very simple.

Thanks for your help!
Mike