Track widht

Track width is determined by the location of the wheel centers.  Change the location of the wheel center (in Y direction) and the track width will also change

I did it, but the length of the solid axis hasn't changed as in the screenshot below.

<?xml version="1.0" encoding="UTF-8"?>

And if I try to move the whole model, in the X and Z directions, the solid axis always remains in its initial position. All other points are translated except the axis.

Hi Tetoldini,

The axle is an external CAD and it is not parametrized with the MV model.

Changing the wheel center points will not change the axle length, only the track width. What you could do is scale it using the graphic panel.

In the same way if you want to move the axle you need to change its location in the origin option.

Best regards,

Felipe.