Altimeter for use with flight simulator

Two hand (feet and thousands) altimeter intended to be driven from a PC flight simulator via an Arduino or similar and a small stepper motor.

Done:
* concentric drive for two hands
* 10:1 reduction gearbox
* cam & microswitch for detecting known position of thousands hand

To do:
* hands
* instrument markings
* mounting fascia
* stepper motor mounting
* frame to hold everything