Thanks, Ill try better next time, but it was a test for my builds, I will later try to build a better train, Oh and the wheels, I got confused, I know how to make plane wheels, but not train ones, if someone helped me.
Look at some real life train pictures, maybe that helps.
As you see, the picture of the other train build that i gave there has some smaller front wheels and some larger back wheels with some tube like thing at the side.
Now if you look at some pictures of some old steam locomotives, you'll see that it resembles the old steam locomotives wheels.
As for the roundness of wheels, i am sure you know that you can do that by using ramp bricks. ;P
