About this 3D model

This engine, called UFO because of its strange shape is based around an impeller and can reach interesting speeds and powers for small purposes.I designed it to power a tank, but i managed to build the tank too big for this one, so i'm going to design a bigger and newer one for that purpose.You'll only need 5 M3 screws and nuts to close the back and an M4 long at least 40mm to act as the shaft. The bearings are 13mm in diameter, 5mm height and 4mm inner diameter.Built with some patience runs super smooth and fast!