Auto_Bed_Leveling with positive Z_PROBE_OFFSET_FROM_EXTRUDER

[regpye]

Wow! That is a clean design!

OK, I have done all of that and checked it.
The G28 second lift (EDIT) is really not needed now as the (EDIT) first lift takes care of the problem we had before.
I changed the G29 final home to 5x 5 y 2z because I run a routine that sends a length of filament down before starting the print. I like to see a line of filament come out clean before hand.
Ran all the tests and didn't see any problem except for the second lift when using a G28.
The machine design really needs a bit more support for the bed axis, too much physical flex at the X positive side. I think I will redesign another machine with wider Y rods so that the support is more even across the bed.


SENDING:M48 x 100 y 100 n 10 v 4
M48 Z-Probe Repeatability test. Version 1.85
Positioning probe for the test.
1 of 10 z: 1.433000 mean: 1.433000 sigma: 0.000000
2 of 10 z: 1.493750 mean: 1.463375 sigma: 0.030375
3 of 10 z: 1.451500 mean: 1.459417 sigma: 0.025425
4 of 10 z: 1.464750 mean: 1.460750 sigma: 0.022139
5 of 10 z: 1.440750 mean: 1.456750 sigma: 0.021357
6 of 10 z: 1.434750 mean: 1.453083 sigma: 0.021150
7 of 10 z: 1.437750 mean: 1.450893 sigma: 0.020303
8 of 10 z: 1.439000 mean: 1.449406 sigma: 0.019395
9 of 10 z: 1.415750 mean: 1.445667 sigma: 0.021124
10 of 10 z: 1.471500 mean: 1.448250 sigma: 0.021487
Mean: 1.448250
Standard Deviation: 0.021487
echo:endstops hit: Z:-3.53






SENDING:M48 x 100 y 100 n 10 v 4 L 6
M48 Z-Probe Repeatability test. Version 1.85
Positioning probe for the test.
x: 101.74y: 90.15
x: 98.54y: 88.09
x: 96.06y: 89.73
x: 97.38y: 93.51
x: 92.78y: 91.70
1 of 10 z: 1.439000 mean: 1.439000 sigma: 0.000000
x: 106.50y: 111.26
x: 110.07y: 109.73
x: 110.29y: 106.18
x: 113.81y: 105.86
x: 112.22y: 104.45
2 of 10 z: 1.488250 mean: 1.463625 sigma: 0.024625
x: 89.80y: 104.12
x: 85.02y: 100.79
x: 84.41y: 96.40
x: 83.04y: 89.40
x: 81.89y: 84.25
3 of 10 z: 1.490250 mean: 1.472500 sigma: 0.023702
x: 119.15y: 83.93
x: 114.34y: 79.52
x: 111.47y: 83.62
x: 110.44y: 79.51
x: 105.26y: 82.79
4 of 10 z: 1.483000 mean: 1.475125 sigma: 0.021024
x: 96.87y: 82.27
x: 94.38y: 86.09
x: 88.67y: 86.01
x: 86.42y: 89.77
x: 83.20y: 93.55
5 of 10 z: 1.499750 mean: 1.480050 sigma: 0.021228
x: 102.26y: 112.80
x: 104.39y: 114.34
x: 108.33y: 117.08
x: 112.47y: 114.34
x: 112.73y: 112.73
6 of 10 z: 1.611000 mean: 1.501875 sigma: 0.052509
x: 119.40y: 126.70
x: 116.78y: 124.87
x: 110.11y: 125.03
x: 102.93y: 127.85
x: 97.82y: 124.90
7 of 10 z: 1.738250 mean: 1.535643 sigma: 0.095942
x: 92.02y: 115.01
x: 87.50y: 112.95
x: 86.42y: 111.81
x: 88.86y: 106.70
x: 88.32y: 105.70
8 of 10 z: 1.447500 mean: 1.524625 sigma: 0.094361
x: 89.22y: 92.73
x: 92.50y: 91.96
x: 93.71y: 92.23
x: 94.26y: 91.81
x: 97.00y: 92.58
9 of 10 z: 1.450500 mean: 1.516389 sigma: 0.091964
x: 88.72y: 104.10
x: 90.17y: 106.88
x: 91.45y: 106.92
x: 92.09y: 107.64
x: 93.19y: 113.37
10 of 10 z: 1.464500 mean: 1.511200 sigma: 0.088623
Mean: 1.511200
Standard Deviation: 0.088623
echo:endstops hit: Z:-3.54




SENDING:G29 n 4 T
Eqn coefficients: a: -0.01 b: -0.00 d: 5.30
Correct +.14 with one clockwise turn.


Bed Height Topography:
+0.75933 +0.21208 --0.36417 --0.93592
+0.77933 +0.35908 --0.32967 --1.09992
+0.66358 +0.22008 --0.28592 --0.69142
+0.85158 +0.50908 --0.14017 --0.50692


planeNormal x: 0.01 y: 0.00 z: 1.00


Bed Level Correction Matrix:
1.00 0.00 -0.01
0.00 1.00 -0.00
0.01 0.00 1.00
echo:endstops hit: Z:-1.57