Alpakka Controller project: https://inputlabs.io/
Reference case design: https://github.com/inputlabs/alpakka_case
Snap-on mask for touch hexagon of Alpakka Controller. When this mask is attached it allows to limit the touch-sensitive surface in games when the more precise control over gyro on/off mode is needed. This modification is similar in its purpose to screw mod, but allows to quickly bring back the full surface when mask is removed.
Printing instructions:
There are several STL files for different hole sizes.
The author remixed this model.
Original hexagon model was used to match the button holes and shape.