I have idea

[tdnbsun]

+ More type of basic block

+ How about bracket added to Craft system.

- The block can be one-by-one connected to each other, this unstable if 2~4 shotguns stand on motorized hinge like this

- Parts can connect  between 2, 3, or 4 .... parts

 

+ Sensor

- Controlling rotate speed of some parts like: motorized hinge

- New type of distance sensor: radar

[Lurkily]

Motorized hinge definitely needs more control.  It needs the 'dynamic thruster' treatment, as well as angle limitations for its range of motion.  We also need non-colliding pylons to mount them on so they can be stable.