Dual Concentric Rotaries for EFIS

With 5-position spring-loaded inner knob (as on real 737’s EFIS) and 2-position 60-degree outer. Both are based on chapest LORLIN 30-degree switches.


Video demonstrating how early prototype of spring-loaded switch works:

3 thoughts on “Dual Concentric Rotaries for EFIS”

  1. Hello, are these 3D printed? I’m trying to design similar switches for 3D printing but my design skills are still very basic, will you be willing to share the .stl files please? I’ll be very grateful.

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