Kodama Trinus Bed Calibration Helper

So I adjusted the axis screws of my trinus to the max what printer firmware and (heated) bed dimensions allow and came to following values:
X: 120mm
Y: 124mm
Z: 0.2mm

To check if everything is correct I made this small model, its only 0.2mm high, 124mm Y and 120mm X. So the printer prints basically along all edges and the center.
Used it to tune first layer height in Simplify3D