Voron style 4 Z auto gantry levelling issue

Adamfilip

I have a Voron 2 style machine with fixed bed and 4 motor Z to level gantry
if gantry isnt very tilted it works fine but if its off more than lets say 10mm it doesnt trigger all 4 points like it should. it might try one and skip it than throw an error

maybe its homing, and if the nozzle goes below 0 than it skips it?

I have setup the config to these points for the 4 Z motors, with max 40mm difference, 40mm is more than I need.

M558 K0 P5 C"^zprobe.in" H5 F1000:500 60 T9000 A1 S0.01 
M671 x-76:-76:382:382 Y-37:421:421:-37 S40

I have also set the bed4point.g macro to this

M558 F180 A1                              ; fix probe speed to 3mm/s
G90
G4 P250

G30 P0 X20 Y10 Z-99999 ; probe near a leadscrew
G30 P1 X20 Y255 Z-99999 ; probe near a leadscrew
G30 P2 X290 Y255 Z-99999 ; probe near a leadscrew
G30 P3 X290 Y10 Z-99999 S4 ; probe near a leadscrew and calibrate 4 motors

Adamfilip

@adamfilip I ended up doubling H value for Zprobe Height to also increase its max depth. wish I didnt have to raise it up more to go down farther.

ended up using
M558 K0 P5 C"^zprobe.in" H10 F1000:500 60 T9000 A1 S0.01

jay_s_uk

@adamfilip I do that on the first pass of my z homing file. I have H10 for the first pass and then H2 for every subsequent pass.