Armattan Beaver arm protector

Designed to be printed from hard material, ASA, PET, etc

Parts are interlocking each other during assembly.

Screws for motors needs to be 0.5mm longer than those used normally.

`In my case, the screw is only one last turn too short. So I stay with original.

### Version 2
V2 has different locking shape, it wont fit V1, but it should be more tight

Screws needs to be *1mm* longer this time

There is also larger protector, but it needs to be printed from flex material with supports.
Flex one should provide more impact protection and more durability