BLTouch driving me mad please help

[AndyB]

Hi,You have to put the Gcode "G29" in the start section of your slicer. I use Cura and this is what is in my Start G-code section:

M117 Heating Bed.
M140 S{material_bed_temperature_layer_0} ; Set Heat Bed temperature
M190 S{material_bed_temperature_layer_0} ; Wait for Heat Bed temperature
M117 Pre-heat extruder to 160.
M104 S160; start warming extruder to 160
G28 ; Home all axis.
M117 Auto bed-leveling.
G29 ; Auto bed-level (BL-Touch)
G1 X0 ; Move to side of bed.
G92 E0 ; Reset Extruder
M117 Heat extruder up to full temp.
M104 S{material_print_temperature_layer_0} ; Set Extruder temperature
M109 S{material_print_temperature_layer_0} ; Wait for Extruder temperature
G1 Z1.0 F3000 ; move z up little to prevent scratching of surface
G1 X0.1 Y20 Z0.3 F5000.0 ; move to start-line position
M117 Purge the extruder.
G1 X0.3 Y200.0 Z0.3 F1500.0 E15 ; draw 1st line
G1 X0.6 Y200.0 Z0.3 F5000.0 ; move to side a little
G1 X0.6 Y20 Z0.3 F1500.0 E30 ; draw 2nd line
G92 E0 ; reset extruderG1 Z1.0 F3000 ; move z up little to prevent scratching of surface
M117 Printing model.Hope this helps you.
Cheers,Andy

PS the M117 code just sends a message to the LCD screen.