Hypercube Evolution Z Axis Upgrade

I built the HyperCube Evolution from SCOTT 3D (https://www.thingiverse.com/thing:2254103) and used parts of my anet a8. That's why I opted for a double axle with 8 mm and was able to reuse many parts. the hypercube evolution is a great printer and especially the parts of SCOTT 3D work great. But because I'm an impatient person, I've never managed to align the axis properly. For all who want to save time while aligning and are fine with a little more printing time, I have here a z axis upgrade. I