This is version 2 of the Cessna start/magneto switch. This unit features a working barrel lock and 5 set positions. The last position (start) is sprung loaded to return when released. A very simple build utilising 4 printed parts which can easily and quickly be created.  A small compact design which adds the next level of realism to your sim.
 
This file includes the CAD files to edit the design as well as the print STL Files.
 
For additional hardware, please see the build guide:
https://www.737diysim.com/build-guides-1/c172-start-switch
 
The unit can be purchased complete here:
https://www.737diysim.com/product-page/c172-fuse-panel