Is the measurement system in Game Studio based on metric or USA measurement system? A 3D character is about 17 small grid units or just over two large grid units in WED. I think that one small grid unit equals 6 inches and one large grid unit equals 3 feet. If I create a 3D model in a 3D modeler like Blender and Milkshape, how do I set up 3D modeler so that when I export the 3D model to MDL file and load it into WED, the 3D model is of the correct size?