BL touch setup step by step

Using repetier firmware tool https://www.repetier.com/firmware/dev/index.php

General tab

configuration level Expert

Mechanics tab

Endstops

Not ticked-----Always check endstops. Only enable if you have no cross talk from your motors, which could trigger wrong signals causing the print to skew. (ALWAYS_CHECK_ENDSTOPS)

Tick ----X homing in negative direction direction (towards min endstop). (X_HOME_DIR)

Tick-----Y homing in negative direction direction (towards min endstop). (Y_HOME_DIR)

Tick-----Z homing in negative direction direction (towards min endstop). (Z_HOME_DIR)

Homing order------X,Y,preheat then Z

Pre-raise Z---------Allways

Pre raise distance----5

XY Homing pos. for Z----- 100 100 ;centre of bed

Z min-----Electronic,normally closed_____Pin----Z min endstop

Endstop distance after homing 1 1 0

Features tab

Tick------Enable Z-probing

Tick------Enable Servo

Z-Probing

Tick-----Enable automatic bed leveling

Tick----Enable pullup resistor for probe pin

Tick-----Probe triggers on high

Z-probe pin-----Z min endstop

Probe bed distance----5

Set probe x,y extruder offset as show in diagram in config tool

Probe height----adjust this to set the distance from bed to nozzle when Z is homed

Probe start script-----M340 P0 S700

Probe finished script-----M340 P0 S1500

Bed Measuring Method-----n * n grid

Set number of grid points and probing locations depending on what your probe x,y offsets were set to earlier.

Servo-Configuration

If using the 1st servo location on the ramps board set

Servo 0----digital pin 11________start position 1500

I dont think i missed any steps, hope it helps.