First build ,cat D11

[Cooper]

From the previous picture this is how much movement I'm planning. When the sharp edges are smoothed and final fit it will have a little more in the main wheel and a bit more for the bogies, to the best guesstimate of mine I figured this is enough movement. What do you all think? If too much I can install rubber blocks between parts and limit movement. As I planned on using a thin piece for shock suppression of metal on metal. Now that I said that out loud I kinda realize at this level (scale) I don't think aluminum hitting aluminum from 1/4" away is going to hurt anything .