Mostly 3D Printed Rotary Switch

I am currently working on a replica of the Minivac 601, an electro-mechanical computer from 1961 (see the [Wikipedia](https://en.wikipedia.org/wiki/Minivac_601) entry for details). For this project I require a rotary switch with the following characteristics:

* 1P16T
* Continuous Rotation
* Non-Shorting
* Panel Mount
* Motorized

This last requirement is the kicker. Without having to drive the switch via a motor, a fair number of parts meet the remaining criteria. However I was unable to see how any of them could be easily motorized. Some are physically too small, and most require a fair amount of torque to switch between positions.

So I came up with the following 3D printable design that uses reed switches and magnets.