I find it is very hard to place engine on rail. What way it is possible to place engine on rail using mate?
Use a tangent mate on the wheels and a center plane mate for alignment.
Here is one way
I used a tangent mate on the wheels and a coincident mate between the inner edge of the wheel and the inner face of the rail.
Thanks for all of you.
Use a tangent mate on the wheels and a center plane mate for alignment.