Configure / Calibrate Z Movement

That’s what i was working with yesterday, but for some reason (most likely something I did wrong) changing the step length yesterday was not making much of a change.

So today when adjusting steps length, I could tell there was a difference. My problem now is that even at 1, the movement of Z is still short 20% (when specifying 1", I get .8" of movement). If I set the value to .9, the motors begin to sound odd and I get it move about .83 inches. If I set the value to anything below .9, horrible sounds await attempted movement of Z.

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The movement with such settings: