School Bus with Rolling Wheels

UPDATE: V2Fixed the axles by adding axle cover/plates.I changed the captive axle system to use a cover instead. I found that this reduces the issues where the tolerance of the axles friction fit becomes an issue. Simply glue the axle cover over the axle after the axles and wheels have been assembled, and the bus should roll mostly free. Personally, i bought metal rods to try to see if that would work, and while it did, cutting the rods down and getting the metal to adhere to the bus wheels was a pain, so i scrapped this idea. After a few prints of this, I wanted to try an axle cover and it was so much more simple. The plastic axles friction fit into the wheels, so the only gluing needed is the plate cover to the bottom of the bus. The axles are no longer captive. Should you want the captive version, please leave a comment and let me know, but I can assure you it was more of a pain in the a** than it was worth. Fixed the flushing amount by changing the value to .5xWheels no longer grind