leadscrew adjustment doesn't get better

[Impalanator]

Hello,
i have a custom built Cartesian 3d printer with 2 independent Z motors running the 6HC with 3.3 firmware. I noticed when I run repeated lead screw leveling commands, the initial probe before adjustments for every command are about the same and the left side appears to be consistently higher than the right side. I'm using a genuine BLTOUCH for leveling.

I have these commands in my config.g:

M584 X0.0 Y0.1 Z0.2:0.3 E0.4:0.5                   ; set drive mapping
M671 X-20:350 Y150:150 S5; leadscrews at left and right of X axis
M208 X0:340 Y0:310     ; set axis limits

For testing purposes, I configured my bed.g file with the following:

G28 ; home
G30 P0 X20 Y150 Z-99999 ; probe near front left leadscrew
G30 P1 X275 Y150 Z-99999 S2 ; probe near rear leadscrew

I kept repeating the G32 command but the bed doesn't appear to be getting any more level:

12/18/2021, 1:55:32 PM	G32
Leadscrew adjustments made: -0.114 -0.118, points used 2, (mean, deviation) before (-0.116, 0.001) after (0.000, 0.000)
12/18/2021, 1:54:24 PM	G32
Leadscrew adjustments made: -0.122 -0.121, points used 2, (mean, deviation) before (-0.122, 0.001) after (0.000, 0.000)
12/18/2021, 1:53:18 PM	G32
Leadscrew adjustments made: -0.164 -0.075, points used 2, (mean, deviation) before (-0.124, 0.031) after (-0.000, 0.000)
12/18/2021, 1:33:03 PM	G32
Leadscrew adjustments made: -0.154 -0.053, points used 2, (mean, deviation) before (-0.109, 0.035) after (-0.000, 0.000)

Could this mean I have a hardware issue or is the adjustment not taking place for some reason?

Thanks much,
Ed

[A Former User]

This post is deleted!

[Impalanator]

@arnold_r_clark
That was it exactly, thank you!

12/19/2021, 2:29:38 PM	G32
Leadscrew adjustments made: 0.001 0.005, points used 2, (mean, deviation) before (0.003, 0.001) after (0.000, 0.000)
12/19/2021, 2:29:02 PM	G32
Leadscrew adjustments made: 0.008 -0.005, points used 2, (mean, deviation) before (0.002, 0.004) after (-0.000, 0.000)
12/19/2021, 2:28:28 PM	G32
Leadscrew adjustments made: 0.015 -0.016, points used 2, (mean, deviation) before (0.001, 0.011) after (-0.000, 0.000)
12/19/2021, 2:27:56 PM	G32
Leadscrew adjustments made: -0.023 -0.281, points used 2, (mean, deviation) before (-0.140, 0.089) after (0.000, 0.000)