cubiio power-speed test

This file can test the cubiio power-speed from 100% to 10% for testing material.

The original design is by Po-chiang Chao in FB group
https://www.facebook.com/groups/175632133023402/permalink/176808042905811/
File on https://gist.github.com/bobchao/0ee0b2029aa0640c3c43920cf02fcb90

I add one corner to make sure the layer is parallel to cubiio

#cubiio