Just when you think you're coming to the end, there is more to do. Having fitted everything in for the dials, I had one very simple component left; the sprung coil. It's function is purely mechanical. It's a simple little bit of metal, bent around and pressing against the detent ring. With only one side attached to the unibody, the coil springs as the ring turns and the wave form of the detents pushed it back and forth. This is the component which will hold the dial in place for each setting point, and also give it a tactile feel when rotating it.
Here we can see the coil in location, pushing against the detents in the aluminium dial. Because it's metal on metal, it could give a satisfying sound to each click. That all depends on the quality of the model though, there's no gaurentee. To make space for it, I've had to hack a section out of the circuit board. The detend ring is bang in line with the level of the board, something I just couldn't avoid in the end. Hacking out a section this big isn't much of a problem though, there is plenty of space for the electronics to reach the encoders.
Above we can see the 3D layout with the unibody hidden from view. The coils, one for each side, side between the cogs and the retaining rings, making for a very tight but perfectly achievable assembly. The coils are interference fitted into the uni body; simply pushed into a slot which rises up. You can see these inthe cross section below. Finally I think the dials are finished, apart from some minor aesthetic touch-ups on the exterior! :)
