Many people asked me for more info about the gun on my battle tank model.
A video explaining it is coming soon, but for now I made an LDD. I can't upload it to blogger, but you can download it here.
The model isn't perfect (rubber bands are missing, the motor on top missing, gears arenot meshing properly, colours not matching the original,...), but it should be good enough if anyone wants to build it (big if.).