0.2 Layer Calibration

Made this up to be able to see differences between layers for a rough-surface issue i was having. It is 125mm long, by 50mm wide. Its comprised of (10) 25mmx25mm squares, each one representing successive layer heights in 0.2 increments. 1st square is 0.2mm high, final square is 2mm high.

Im sure there is a multitude of other testing possibilities for this.