[IDEA] 4/16-speed combinable RC transmission for Control+ [INSTRUCTIONS!]

[Sariel]

Building on my 3/9-speed transmission design for a PF Servo motor, here's a variant designed for Control+ motors or for mechanical steppers, packing 4 speeds into a unit of the same size, and waiting to be combined into a single 16-speed transmission (for times when you need that 81:1 gear reduction to simulate glaciers moving):

Instructions: http://sariel.pl/downloads/