Remix of rubber band submarine body

This version helps solve some of the issues I was having with the original. it now rotates a little more freely and I increased the tolerance to make it more forgiving. This version requires a .4 nozzle and .2mm layer height or it might not work. I also would not recommend scaling or using materials with high layer adhesion as my version relies on what is basically a support interface between the propeller shaft and hull. Cooling is a must and if the propeller refuses to rotate you can pry the little slit where the propeller shaft enters the hull.