I t s a f e a t u r e (0.3.1 Physics issue)

[ronron]

But not really. Guess I shouldn't chew so hard. Broke my jaw and my game. 

Context: The drone can open and close its "jaw", which not only determines whether or not the kinetic flame thrower will work, but also looks cool. It's also incredibly vulnerable to snapping under its own armored weight, hence the spring which provides additional support by spreading the upwards force across 2 points instead of only the motorized hinge. If the drone closes or opens its mouth too much, the hinge snaps and the drone loses its jaw. But the thing is that the drone does not implode across (and through!) the planet. At least, normally it doesn't. 

[Micha]

The motorized hinge is bypassing the physics, by just forcing the attached parts to move even if they could not.

To avoid this, we could add a hinge that rotates with a specific force and therefore stops rotating when the attached parts collide. However it would be a bit more complicated to set up as you need to configure the force of the motor yourself so that it works with different sizes of attached parts.

[STM]

Another thing to add to the wishlist: