Smoothieboard BL Touch Configuration (with Z-Max Endstop)

config.txt

gamma_min_endstop                           nc              # Normally 1.28. Change to nc to prevent conflict,

## Z-Probe (BL Touch)
# See http://forum.smoothieware.org/forum/t-1760423/bltouch-support#post-2712545
# And http://smoothieware.org/zprobe#bltouch-or-servo-retractable-touch-probe
zprobe.enable                               true                # set to true to enable a zprobe
zprobe.probe_pin                            1.28                # pin probe is attached to if NC remove the !
zprobe.slow_feedrate                        5                   # mm/sec probe feed rate
zprobe.fast_feedrate                        100                 # move feedrate mm/sec
zprobe.probe_height                         5                   # how much above bed to start probe
##BLTouch Servo Settings
switch.servo.enable                         true
switch.servo.input_on_command               M280 S3.0           # M280 S7.5 Would be midway
switch.servo.input_off_command              M280 S7.0           # Same as M280 S0 0% duty cycle, effectivley off
switch.servo.output_pin                     1.23                # Must be a PWM capable pin
switch.servo.output_type                    hwpwm               # H/W PWM output settable
switch.servo.pwm_period_ms                  20                  # Set Period to 20ms (50Hz) - Default is 50Hz

## BL Touch Usage G-Code (to run to process bed level compensation)
#G28 X Y Z           ; Home X & Y (to min) and Z (to max)
#G1 X100 Y100 Z50   ; Move to bed centre
#M280 S3.0           ; Deploy probe pin
#G32                 ; Probe the bed & enable compensation
#G1 X100 Y100 Z50    ; Return to bed centre
#                    NOTE: Adjust "Z1.5" to be the Z-offset (in mm) between the probe and the nozzle; experiment!
#G30 Z1.5            ; Move down to find bed and set Z home offset.
#M280 S7.0           ; Retract probe
#M374      ; SAVE compensation grid

## BL Touch Usage G-Code (To home Z-axis)
#G28 X Y Z           ; Home X & Y (to min) and Z (to max)
#G1 X100 Y100 Z50   ; Move to bed centre
#M280 S3.0           ; Deploy probe pin
#                    NOTE: Adjust "Z1.5" to be the Z-offset (in mm) between the probe and the nozzle; experiment!
#G30 Z1.5            ; Move down to find bed and set Z home offset.
#M280 S7.0           ; Retract probe

# BL Touch Commands:
# Probe Down        M280 S3.0
# Probe Up          M280 S7.0
# Self Test         M280 S8.4
# Release Alarm     M280 S10.6

# If compensation isn't working after restarting the printer, enable using:
# M375      ; (you MUST home after using this)

## NOTE: Add these lines to 'machine start' gcode settings in slicer, as replacement for "Home X/Y/Z" (G28):
##  G28 X0 Y0        ; Home X, Y
##  G1 X100 Y100 Z50 F1500 ; Move to bed centre
##  M280 S3.0        ; Deploy probe pin
##     NOTE: Adjust "Z1.5" to be the Z-offset (in mm) between the probe and the nozzle; experiment!
##     This is how you adjust nozzle printing height!
##  G30 Z1.5         ; Move down to find bed & set Z home offset (Zxx=probe-nozzle offset)
##  M280 S7.0        ; Retract probe
##  G1 Z15.0 F9000   ; move extruder up 15mm


# Levelling strategy
# Example for 3-point levelling strategy, see wiki documentation for other strategies
#leveling-strategy.three-point-leveling.enable         true        # a leveling strategy that probes three points to define a plane and keeps the Z parallel to that plane
#leveling-strategy.three-point-leveling.point1         0.0,0.0   # the first probe point (x,y) optional may be defined with M557
#leveling-strategy.three-point-leveling.point2         200.0,100.0 # the second probe point (x,y)
#leveling-strategy.three-point-leveling.point3         50.0,190.0   # the third probe point (x,y)
#leveling-strategy.three-point-leveling.home_first     true        # home the XY axis before probing
#leveling-strategy.three-point-leveling.tolerance      0.03        # the probe tolerance in mm, anything less that this will be ignored, default is 0.03mm
#leveling-strategy.three-point-leveling.probe_offsets  27,-6,0       # the probe offsets from nozzle, must be x,y,z, default is no offset
#leveling-strategy.three-point-leveling.save_plane     true       # set to true to allow the bed plane to be saved with M500 default is false

leveling-strategy.rectangular-grid.enable               true     # The strategy must be enabled in the config, as well as the zprobe module.
leveling-strategy.rectangular-grid.x_size               210       # size of bed in the X axis
leveling-strategy.rectangular-grid.y_size               200       # size of bed in the Y axis
leveling-strategy.rectangular-grid.size                 9    # The size of the grid, for example, 7 causes a 7x7 grid with 49 points.
                                                           # Must be an odd number.
leveling-strategy.rectangular-grid.probe_offsets        27,-6,0    # Optional probe offsets from the nozzle or tool head
leveling-strategy.rectangular-grid.save                 true    # If the saved grid is to be loaded on boot then this must be set to true
leveling-strategy.rectangular-grid.initial_height       10       # Optionally an initial_height can be set that tell the intial probe
                                                           # where to stop the fast decent before it probes, this should be
                                                           # around 5-10mm above the bed
leveling-strategy.rectangular-grid.do_home        false