Running into issues with planning how big the servos would be for this engine, and the position of such.

I found a single engine with side pivots were unable to work unless some serious work with hydraulics etc was introduced.


I wanted the pivot to be away from the engine and an individual thing because then the pivot and the engine can be individually strong. By having them as one it weakens the redundancy and strength of the limb, another way would be to use pure hydraulics, but that would add extra bulk to the design that wasn't included in the concept art.

Now when getting to the point of over 90 degree pivot, it comes to an issue. Either file the pivot and join to a point, or distend the point in a fashion that allows a bigger range of motion. A socket join rather than what i'd call a floating pivot (both limbs on one pivot, than one limb pivoting off another limb).


The solution to this typically is by using a layered join, one over / under the other. I looked to the human body, confused of how our own joints pivot further than a 90 degree turn, and realized, it's an offset joint using a socket. As shown below.



Following this I managed to push the join slightly farther forward to allow a wide range of movement towards the shoulder.