First Layer Fail Using Bilinear Auto Bed Leveling Marlin v2.0.5.3

First layer is high on one side of the bed and low on the other after impleming auto bed leveling. Here's the matrix:

Bed 60C
SENDING:G29 V4
Bilinear Leveling Grid:
0 1 2 3 4
0 +0.002 +0.112 +0.197 +0.341 +0.506
1 -0.180 -0.068 +0.044 +0.174 +0.330
2 -0.260 -0.134 -0.013 +0.137 +0.251
3 -0.226 -0.088 +0.046 +0.142 +0.246
4 -0.066 +0.021 +0.063 +0.137 +0.244

Here's a link to the pic showing the uneven first layer. Shouldn't auto bed leveling handle such minor differences in bed height?



Edited 4 time(s). Last edit at 05/25/2020 04:14PM by inventabuild.

ABL is turned off by default after a G28 as there is a switch to turn it on in the config.

/**
* Normally G28 leaves leveling disabled on completion. Enable
* this option to have G28 restore the prior leveling state.
*/
#define RESTORE_LEVELING_AFTER_G28

Or simply ad start Gcode to turn it on b4 each print.

G28 disables bed leveling. Follow with M420 S to turn leveling on, or use RESTORE_LEVELING_AFTER_G28 to automatically keep leveling on after G28.

Also be sure the level matrix is stored in EEPROM with an M500 after a G29

Edited 1 time(s). Last edit at 05/27/2020 01:34PM by ruggb.