Leveling does not work reliably on some Ender3S1 F4 printers (mechanical issue)

[dasdv124]

no idea what i am doing wrong, but it seems like the created mesh is not being used. no matter what i do the middle is always too high and the the corners too low. this is my g-code

G28 ;Home
M420 S1 Z2 ;Use mesh level upto 2 mm
G92 E0 ;Reset Extruder
G1 Z2.0 F3000 ;Move Z Axis up
G1 X10.1 Y20 Z0.28 F5000.0 ;Move to start position
G1 X10.1 Y200.0 Z0.28 F1500.0 E15 ;Draw the first line
G1 X10.4 Y200.0 Z0.28 F5000.0 ;Move to side a little
G1 X10.4 Y20 Z0.28 F1500.0 E30 ;Draw the second line
G92 E0 ;Reset Extruder
G1 Z2.0 F3000 ;Move Z Axis up

the steps i do :
set z offset with paper, auto home then manual bed trimming,mesh create

[webmogul1]

Do the 2 bars below Z change color when you are printing?

[dasdv124]

yes it does change color to blue when printing

[dasdv124]

here is a picture, middle is way too close. upper left corner is perfect and bottom right corner is also perfect.

[Victordiazbis]

Have you edit manually the mesh to check if it makes any difference?

[dasdv124]

Have you edit manually the mesh to check if it makes any difference?

I have not, what's a setting I should change to test it ? Thanks

[neumo]

yes it does change color to blue when printing

my S1 changes the color to red!? What does the color red or blue mean?

[mriscoc]

my S1 changes the color to red!? What does the color red or blue mean?

https://github.com/mriscoc/Ender3V2S1/wiki/3D-BLTouch#enable-mesh-level-compensation

[cybersatanizer]

Hi, i also have problem with mesh leveling. i did:
-bed tramming
-z offset

• mesh leveling

then use G29 at start script, and trying to make first layer calibration from superslicer and lines under Z is going from white to blue but center is perfect, back left too high, front right too close, like printer did nothing about g29?

[mriscoc]

Currently some S1 (F1 and F4) have issues with the CRTouch, sadly it seems to be a hardware problem. I suggest you use the automatic leveling as reference and then do a mesh editing and save to two slots (one for backup). That will give you the best results.

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