Firmware V0.91 auto bed levelling Z offset

goldendark

Hi,

I've just bought a prusai3 printer with melzi v2.0 board. the printer is preconfigured with repetier 0.91 firmware.

I try to add autobed levelling implementing PL-05N inductive captor.

my Z probing section in configuration.h is :

// #################### Z-Probing #####################

#define FEATURE_Z_PROBE 1

#define Z_PROBE_BED_DISTANCE 2

#define Z_PROBE_PIN ORIG_Z_MIN_PIN

#define Z_PROBE_PULLUP 0

#define Z_PROBE_ON_HIGH 0

#define Z_PROBE_X_OFFSET 38

#define Z_PROBE_Y_OFFSET -19

#define Z_PROBE_WAIT_BEFORE_TEST 0

#define Z_PROBE_SPEED 2

#define Z_PROBE_XY_SPEED 150

#define Z_PROBE_SWITCHING_DISTANCE 1

#define Z_PROBE_REPETITIONS 2

#define Z_PROBE_HEIGHT -0.2

#define Z_PROBE_START_SCRIPT "G28 X0 Y0"

#define Z_PROBE_FINISHED_SCRIPT "G28 X0 Y0"

#define FEATURE_AUTOLEVEL 1

#define Z_PROBE_X1 80

#define Z_PROBE_Y1 40

#define Z_PROBE_X2 250

#define Z_PROBE_Y2 40

#define Z_PROBE_X3 165

#define Z_PROBE_Y3 200

I have 2 troubles :

1- When I upload firmware the Z_probe_XY values are not copied into the eeprom. I need to use the repetier host software to use it. Is-it normal?

2- the G32 S0 Gcode seems to work well OK - bed is detected with 3 points and correction seems to be OK. When I want to print, as the extructer noze is IN the captor detection zone, the Min endstop goes ON and it in not allowed to reach the Z0.

can you help me?

Repetier

I guess you have defined z probe for z min and z probe. Remove it from z min (no hardware z min) if it is not a zmin endstop. That's why you set a separate z probe pin. These are really different things.

1. Values are copied only on first start. Maybe also a bug. 0.92 has many bed leveling issues solved.

goldendark

Thx you but I don't understandI have : #define Z_MIN_POS 0do I have to change ORIG_Y_MIN_PIN to -1 in pins.h and change #define Z_PROBE_PIN in configuration.h to 19 (melzi board mother board == 63)

Repetier

Don't change pins.h!

I said you should set

#define MIN_HARDWARE_ENDSTOP_Z false

if you have no hardware z min endstop, which I assumed since z min and z probing only makes problems.