Wheel for Volume - Audioengine A2+

Thanks to https://www.thingiverse.com/clubclay for the idea about a wheel to change volume or power off the audioengine A2+
Due to a new model with micro-usb, his wheel was not functional, so i have create a new one.

Fit correctly on the volume knob.

If you have a previous version, please use his model: https://www.thingiverse.com/thing:3140855