B737 MCP bank angle knob mechanism

[Merikarhu]

I would like to know how you guys have been designed bank angle mechanism, im using encoder for heading and stepper switch for bank angle.

Thank you in advance !

[Fess_ter]

I use a single encoder with push button. Push and turn changes bank angle. Turn without push changes HDG.
I was looking into hardware for EFIS, needing a switch for the outer dial and encoder and push button for inner dial.
Elma makes a dual concentric switch that is available without the inner switch but still has the hole in the shaft that you could run an encoder thru. Elma's stuff is expensive though.

~Fess

[Merikarhu]

Elma switch is looking just what i need, now i need to find cheap copy of it or figure out own design Any diy ideas are welcome!