ok, so, i tought i understood what the method wanted as paramethers to create a new rotary input, but it doesn't seems to work, and i have no clue if i'm doing something wrong or there is a bug.
tests are done with mystical mechanics wich provide a mechanical system compatible with better with mods and ember

To Reproduce

1. write the function
   import mods.immersiveintelligence.RotaryInput;
   RotaryInput.addInput("mysticalmechanics.tileentity.TileEntityAxle", 50);

2. start the game and check that II recognize TileEntityAxle as an existing class

3. build contraption as in the pictures and see that the Windmill work as intended, while the other don't

Expected behavior
the wheel on the transmission box connected to the axle is powered

IE Windmill version that work fine

mystical mechanics version added with crafttweaker that do nothing

Environment

• OS: windows 10
• Minecraft version: 1.12.2
• Forge version:14.23.5.2859
• Immersive Intelligence version: 0.21
• Immersive Engineering version: 0.12-98

the modpack is a pretty big modpack and i will do some test also in a smaller modpack environment

Sorry it took me so long to respond, I just forgot to add this to the github project.

As of 5272fb7 II rotary power has compatibility with Mystical Mechanics.