Size 25mm gear motors are used; they are strong enough for this lightweight tank.
The housing is made of glued 3mm aluminum plates:


All parts of the gears…

…and mounted:

Originally I planned to use Pz. III return rollers…

…but then switched to scale printed roller mountings and using the smaller early Pz. IV return rollers…


…and Pz. III metall tracks which were cutted on each side to get overall track width of 19mm.



I think it´s looking well



Freddy