Better i3 Dual Calibration

[BrendaEM]

Hi All,

I had been using a scaling factor for the i3 Dual with stock pullies and z-screws.
This following is pretty good at a 100mm test square.

Scale Factor x and y: .9792, or 1.0208
It was 78.74 steps per millimeter, and now I've set it to 80.377792

Scale z: .9835 or factor of :1.0165
Was 2560 steps per millimeter, and now I've set it to 2602.24

Fortunately, these can be set in the control panel and saved to EEPROM right from the printer panel.
The values can be verified as saved from within Repetier host.

I guess I am going to make a 150mm test square and see how that goes.