Problem with setting z Axis Mooz 2


I have been trying to get my set the Z axis, I have followed the instruction that I can find and even the video but after doing exactly as instructed and trying to use the 3d print head on one of the test file it does not move the heat to the bed but starts at the about 130 above.

I am impressed with the build of them unit but there is a lot lacking in the software/instruction side of the project.



What is the the coordinate of Z after zero setting and homing, it should be greater than 130. Move Z to 0 manually to check whether the zero point has been set correctly with a piece of paper.