Using Fusion 360 I opened the existing model file “WaltHead.obj” and having already scanned in my son’s head I recalled it to be as close to the existing model as possible. The model of my son’s head is made up mainly of a mesh. For simplicity I put the “obj” file in the same location as the “WalkHead.obj” and just changed the file spec. on line 43 to the new model, however I don’t see my model, the light orbs are rotating around something I just don’t see it.