Gearbox.

After the first testdrive I noticed that the chosen version of the propulsion couldn't adjust to the right belt tension without the belt jumping tooths over the gears. The axle of the motor is only fixed in one bearing so I placed a second bearing in the gearbox to fix the motor axle.

After making the drawings in my CAD program it looks promising and I started to get the material and start milling.

The eight plates for the four gearboxes

The first backplate

Making of the cool holes for the brushless motor

Making the hole for the brushless motor with the boring head.

The cool holes open

The cool and mounting holes in the motorplate

Milling the adjust blocks.

Making the hole for the bearing

The gearbox assy assembled

The gearboxes mounted in the hull.