@dc42

Like this?

@jay_s_uk Apparently that was the issue. I bought a USB 3.0 cable and made it up and now its working. Don't know what to do with that data yet but thats a different issue. I'm making progress thanks to the help. Thank you.

@droftarts adding a code example for the G10 showing the offsets and explaining how one get them. I’m any case, I’m complete I think.

@droftarts They are both named correctly IAW your instructions. Here are the files:

; deployprobe0.g
; called to deploy a physical Z probe
;
; generated by RepRapFirmware Configuration Tool v3.5.4 on Sat Aug 10 2024 17:00:40 GMT-0400 (Eastern Daylight Time)

M280 P0 S10	; deploy BLTouch

; retractprobe0.g
; called to retract a physical Z probe
;
; generated by RepRapFirmware Configuration Tool v3.5.4 on Sat Aug 10 2024 17:00:41 GMT-0400 (Eastern Daylight Time)

M280 P0 S90	; retract BLTouch

I might have a bad crimp. I'm going to redo the connection.

@droftarts said in Configuring Multiple Probes/Endstops:

What reading for the Z probe is reported in DWC?

Where do I find this? Dashboard?

UPDATE: I found the issue. Conducting further tests to confirm. I must have had a bad crimp/connection. I made a whole new wire and now it deploys on command. The connectors on the Roto toolboard are so tiny that crimps are kinda tough. So much as a couple frayed wires and ya lose continuity.

@Phaedrux so that was one thing I just figured out. I unplugged one motor and homed Y. I repeated this for each motor and discovered how the obvious escapes me sometimes. The motors are mirrored so obviously one would be backwards. Fixed that now moving on. Still trying to get a complete homing cycle. Thank you very much for the reply.

@Phaedrux Yes I found it. I had two wires swapped on the U axis endstop. Thank you very much. I'm still not up and running but its progress. WIFI Module fires right up now.

@moth4017 so I lowered it to 1900. Repeated the G32 that was triggering the error and it completed this time. I'm pretty sure that will be enough current. If not, now I know I will have to add additional cooling to the boards. I may end up doing that anyway. Thank you for the help but I think you've solved my issue for now.

@Phaedrux Ok so my board is mounted horizontally with 10mm of air on the bottom side. I am going to raise that amount as much as I can and add a 24v blower wired to "Always on" that will blow across the bottom of the board on the drivers. Also, I turned down the current to 65%. I don't plan on speed printing with this printer so I will run some tests to see if that's enough. Based on your advice these items will resolve my issue. It will take some time to complete the hardware adjustments so for now I will consider this issue solved until I can run some additional tests. That is, unless you disagree?

@droftarts ; Tools
M563 P0 D0 H1 F0 ; define tool 0 that used low end X carriage
G10 P0 X0 Y0 Z0 ; set tool 0 axis offsets
G10 P0 R0 S0 ; set initial tool 0 active and standby temperatures to 0C
M563 P1 D1 H2 F2 X3 ; define tool 1 that used high end U carriage
G10 P1 X0 Y1.6 Z.34 ; set tool 1 axis offsets
G10 P1 R0 S0 ; set initial tool 1 active and standby temperatures to 0C

@Phaedrux Yup that fixed it. So my M568 lines now read as:

M568 P0 S{first_layer_temperature[0]} R{first_layer_temperature[0] -15} A2 ; set E0 active/standby temp
M568 P1 S{first_layer_temperature[0]} R{first_layer_temperature[0] -15} A1 ; set E1 active/standby temp

Thank you for your help everyone. I'm still having other issues with my startup code but I will address those in another post. I don't want to flood this post. I consider this particular issue resolved.

@droftarts After hours of trial and error and reading and trial and error and a bit more reading, I got it to work without the error. I feel like you abandoned me, but I understand that I and the machine were being difficult. In any case, I am attaching my new config.g, mesh.g and a screenshot of the heightmap. Thank you for getting me to the point that I could work through and solve it. Hopefully this will help somebody else.

; Configuration file for RepRapFirmware on Duet 3 Mini 5+ WiFi
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.5.4 on Sat Aug 10 2024 17:00:36 GMT-0400 (Eastern Daylight Time)
 
; General
G90                                                             ; absolute coordinates
M83                                                             ; relative extruder moves
M550 P"M3ID V2"                                                 ; set hostname
 
; Accessories
M575 P1 S0 B57600                                               ; configure PanelDue support
 
; Network
M552 S1                                                         ; configure WiFi adapter
M586 P0 S1                                                      ; configure HTTP
 
; Wait a moment for the CAN expansion boards to become available
G4 S2
 
; Accelerometers
M955 P121.0 I20                                                 ; configure accelerometer on board #121
M955 P122.0 I20                                                 ; configure accelerometer on board #122
 
; Smart Drivers
M569 P0.1 S0 D2                                                 ; driver 0.1 goes backwards (X axis)
M569 P0.2 S1 D2                                                 ; driver 0.2 goes forwards (Y axis)
M569 P0.3 S0 D2                                                 ; driver 0.3 goes backwards (Z axis)
M569 P0.4 S0 D2                                                 ; driver 0.4 goes forwards (U axis)
M569 P121.0 S1 D2                                               ; driver 121.0 goes forwards (extruder 0)
M569 P122.0 S1 D2                                               ; driver 122.0 goes forwards (extruder 1)
 
; Motor Idle Current Reduction
M906 I30                                                        ; set motor current idle factor
M84 S30                                                         ; set motor current idle timeout
 
; Axes
M584 X0.1 Y0.2 Z0.3 U0.4                                        ; set axis mapping
M350 X16 Y16 Z16 U16 I1                                         ; configure 16X microstepping with interpolation
M906 X1750 Y1750 Z800 U1750                                     ; set axis driver currents
M92 X80 Y88 Z1010 U80                                           ; configure steps per mm
M208 X-7:203 Y-9:250 Z0:200 U28:258                             ; set minimum and maximum axis limits
M566 X900 Y900 Z12 U900                                         ; set maximum instantaneous speed changes (mm/min)
M203 X6000 Y6000 Z180 U6000                                     ; set maximum speeds (mm/min)
M201 X500 Y500 Z20 U500                                         ; set accelerations (mm/s^2)
 
; Extruders
M584 E121.0:122.0                                               ; set extruder mapping
M350 E16:16 I1                                                  ; configure microstepping with interpolation
M906 E424:424                                                   ; set extruder driver currents
M92 E2682:2682                                                  ; configure steps per mm
M566 E150:150                                                   ; set maximum instantaneous speed changes (mm/min)
M203 E3600:3600                                                 ; set maximum speeds (mm/min)
M201 E3000:3000                                                 ; set accelerations (mm/s^2)
 
; Kinematics
M669 K0                                                         ; configure Cartesian kinematics
 
; BLtouch
M558 K0 P9 C"121.io0.in" H5 F8000:120 T6000                     ; configure BLTouch probe via slot #0
G31 P500 X0 Y24 Z4.3                                          ; set Z probe trigger value, offset and trigger height
M950 S0 C"121.io0.out"                                          ; create servo #0 for BLtouch
 
; Scanning Z probe
M558 K1 P11 C"121.i2c.ldc1612" F36000 T36000
M308 A"SZP coil" S10 Y"thermistor" P"121.temp2"                 ; thermistor on coil
G31 K1 Z1.8 Y-38                                                ; define probe 1 offsets and trigger height
M558.2 K1 S16 R134218                                           ; set drive current and reading offset
 
; Endstops
M574 X1 P"io1.in" S1                                            ; configure X axis low end endstop
M574 Y1 P"io2.in" S1                                            ; configure Y axis low end endstop
M574 Z2 S1 P"io3.in"                                            ; configure Z axis high end endstop
M574 U2 P"io4.in" S1                                            ; configure U axis high end endstop
 
; Mesh Bed Compensation
M557 X19:188 Y15:210 S40:40                                     ; define grid for mesh bed compensation
 
; Sensors
M308 S0 P"temp0" Y"thermistor" A"Heated Bed" T100000 B4725 C7.06e-8 ; configure sensor #0
M308 S1 P"121.temp1" Y"thermistor" A"Nozzle" T100000 B4725 C7.06e-8 ; configure sensor #1
M308 S2 P"122.temp0" Y"thermistor" A"Nozzle" T100000 B4725 C7.06e-8 ; configure sensor #2
 
; Heaters
M950 H0 C"out2" T0                                              ; create heater #0 (Bed)
M143 H0 P0 T0 C0 S120 A0                                        ; configure heater monitor #0 for heater #0 (Bed)
M307 H0 R0.167 K0.222:0.000 D26.05 E1.35 S1.00 B0               ; configure model of heater #0 (Bed)
M950 H1 C"121.out0" T1                                          ; create heater #1 (T0)
M143 H1 P0 T1 C0 S300 A0                                        ; configure heater monitor #0 for heater #1 (T0)
M307 H1 R4.287 K0.528:0.232 D2.33 E1.35 S1.00 B0 V24.1          ; configure model of heater #1 (T0)
M950 H2 C"122.out0" T2                                          ; create heater #2 (T1)
M143 H2 P0 T1 C0 S300 A0                                        ; configure heater monitor #0 for heater #2 (T1)
M307 H2 R4.334 K0.514:0.239 D2.21 E1.35 S1.00 B0 V24.0          ; configure model of heater #2 (T1)
 
; Heated beds
M140 P0 H0                                                      ; configure heated bed #0
 
; Fans
M950 F0 C"121.out2"                                             ; create fan #0 T0 Heat Sink Fan
M106 P0 C"T0 Heatsink Fan" S0 B0.1 H1 T45                       ; configure fan #0 T0 Heat Sink Fan
M950 F1 C"121.out1"                                             ; create fan #1 T0 Part Cooling fan
M106 P1 C"T0 Part Cooling Fan" S0 L25 X255 B0.1                 ; configure fan #1 T0 Part Cooling Fan
M950 F2 C"122.out2"                                             ; create fan #2 T1 Heat Sink Fan
M106 P2 C"T1 Heatsink Fan" S0 B0.1 H2 T45                       ; configure fan #2 T1 Heat Sink Fan
M950 F3 C"122.out1"                                             ; create fan #3 T1 Part Cooling Fan
M106 P3 C"T1 Part Cooling Fan" S0 L25 X255 B0.1                 ; configure fan #3 T1 Part Cooling Fan
 
; Tools
M563 P0 D0 H1 F1                                                ; create tool #0 T0
M568 P0 R0 S0                                                   ; set initial tool #0 active and standby temperatures to 0C
M563 P1 D1 H2 F3                                                ; create tool #1 T1
M568 P1 R0 S0                                                   ; set initial tool #1 active and standby temperatures to 0C
 
; Miscellaneous
T0 ; select first tool

M557 X19:188 Y15:210 P10     ; Define grid for mesh bed compensation, origin in bed centre
G29 S2                       ; Disable mesh bed compensation
G28 Z                       ; Home Z
G1 Z6                        ; To avoid backlash move to point higher than start of calibration
M558.1 K1 S1.4               ; Calibrate probe
G1 Z6
G29 S0 K1

@droftarts I did everything exactly as you suggested. I changed the M558 in both the config as well as the mesh.g to S1.7. Then, I meticulously went through the calibration steps. The G29 replied with in the console:

G29
Scanning probe coefficients [1.381e-1, -7.148e-4, -2.015e-8, 2.106e-14], reading at trigger height 8936, rms error 0.137mm

After completion I got the following error in the console:

Warning: the height map has a substantial Z offset. Suggest use Z-probe to establish Z=0 datum, then re-probe the mesh.
100 points probed, min error -0.187, max error -0.035, mean -0.131, deviation 0.033
Height map saved to file 0:/sys/heightmap.csv

Here is the most recent config.g and mesh.g as well as a screenshot of the heightmap:

; Configuration file for RepRapFirmware on Duet 3 Mini 5+ WiFi
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.5.4 on Sat Aug 10 2024 17:00:36 GMT-0400 (Eastern Daylight Time)
 
; General
G90                                                             ; absolute coordinates
M83                                                             ; relative extruder moves
M550 P"M3ID V2"                                                 ; set hostname
 
; Accessories
M575 P1 S0 B57600                                               ; configure PanelDue support
 
; Network
M552 S1                                                         ; configure WiFi adapter
M586 P0 S1                                                      ; configure HTTP
 
; Wait a moment for the CAN expansion boards to become available
G4 S2
 
; Accelerometers
M955 P121.0 I20                                                 ; configure accelerometer on board #121
M955 P122.0 I20                                                 ; configure accelerometer on board #122
 
; Smart Drivers
M569 P0.1 S0 D2                                                 ; driver 0.1 goes backwards (X axis)
M569 P0.2 S1 D2                                                 ; driver 0.2 goes forwards (Y axis)
M569 P0.3 S0 D2                                                 ; driver 0.3 goes backwards (Z axis)
M569 P0.4 S0 D2                                                 ; driver 0.4 goes forwards (U axis)
M569 P121.0 S1 D2                                               ; driver 121.0 goes forwards (extruder 0)
M569 P122.0 S1 D2                                               ; driver 122.0 goes forwards (extruder 1)
 
; Motor Idle Current Reduction
M906 I30                                                        ; set motor current idle factor
M84 S30                                                         ; set motor current idle timeout
 
; Axes
M584 X0.1 Y0.2 Z0.3 U0.4                                        ; set axis mapping
M350 X16 Y16 Z16 U16 I1                                         ; configure 16X microstepping with interpolation
M906 X1750 Y1750 Z800 U1750                                     ; set axis driver currents
M92 X80 Y88 Z1010 U80                                           ; configure steps per mm
M208 X-7:203 Y-9:250 Z0:200 U28:258                             ; set minimum and maximum axis limits
M566 X900 Y900 Z12 U900                                         ; set maximum instantaneous speed changes (mm/min)
M203 X6000 Y6000 Z180 U6000                                     ; set maximum speeds (mm/min)
M201 X500 Y500 Z20 U500                                         ; set accelerations (mm/s^2)
 
; Extruders
M584 E121.0:122.0                                               ; set extruder mapping
M350 E16:16 I1                                                  ; configure microstepping with interpolation
M906 E424:424                                                   ; set extruder driver currents
M92 E2682:2682                                                  ; configure steps per mm
M566 E150:150                                                   ; set maximum instantaneous speed changes (mm/min)
M203 E3600:3600                                                 ; set maximum speeds (mm/min)
M201 E3000:3000                                                 ; set accelerations (mm/s^2)
 
; Kinematics
M669 K0                                                         ; configure Cartesian kinematics
 
; BLtouch
M558 K0 P9 C"121.io0.in" H5 F8000:120 T6000                     ; configure BLTouch probe via slot #0
G31 P500 X0 Y24 Z4.249                                          ; set Z probe trigger value, offset and trigger height
M950 S0 C"121.io0.out"                                          ; create servo #0 for BLtouch
 
; Scanning Z probe
M558 K1 P11 C"121.i2c.ldc1612" F36000 T36000
M308 A"SZP coil" S10 Y"thermistor" P"121.temp2"                 ; thermistor on coil
G31 K1 Z1.7 Y-38                                                ; define probe 1 offsets and trigger height
M558.2 K1 S16 R134312                                           ; set drive current and reading offset
 
; Endstops
M574 X1 P"io1.in" S1                                            ; configure X axis low end endstop
M574 Y1 P"io2.in" S1                                            ; configure Y axis low end endstop
M574 Z2 S1 P"io3.in"                                            ; configure Z axis high end endstop
M574 U2 P"io4.in" S1                                            ; configure U axis high end endstop
 
; Mesh Bed Compensation
M557 X19:188 Y15:210 S40:40                                     ; define grid for mesh bed compensation
 
; Sensors
M308 S0 P"temp0" Y"thermistor" A"Heated Bed" T100000 B4725 C7.06e-8 ; configure sensor #0
M308 S1 P"121.temp1" Y"thermistor" A"Nozzle" T100000 B4725 C7.06e-8 ; configure sensor #1
M308 S2 P"122.temp0" Y"thermistor" A"Nozzle" T100000 B4725 C7.06e-8 ; configure sensor #2
 
; Heaters
M950 H0 C"out2" T0                                              ; create heater #0 (Bed)
M143 H0 P0 T0 C0 S120 A0                                        ; configure heater monitor #0 for heater #0 (Bed)
M307 H0 R0.167 K0.222:0.000 D26.05 E1.35 S1.00 B0               ; configure model of heater #0 (Bed)
M950 H1 C"121.out0" T1                                          ; create heater #1 (T0)
M143 H1 P0 T1 C0 S300 A0                                        ; configure heater monitor #0 for heater #1 (T0)
M307 H1 R4.287 K0.528:0.232 D2.33 E1.35 S1.00 B0 V24.1          ; configure model of heater #1 (T0)
M950 H2 C"122.out0" T2                                          ; create heater #2 (T1)
M143 H2 P0 T1 C0 S300 A0                                        ; configure heater monitor #0 for heater #2 (T1)
M307 H2 R4.334 K0.514:0.239 D2.21 E1.35 S1.00 B0 V24.0          ; configure model of heater #2 (T1)
 
; Heated beds
M140 P0 H0                                                      ; configure heated bed #0
 
; Fans
M950 F0 C"121.out2"                                             ; create fan #0 T0 Heat Sink Fan
M106 P0 C"T0 Heatsink Fan" S0 B0.1 H1 T45                       ; configure fan #0 T0 Heat Sink Fan
M950 F1 C"121.out1"                                             ; create fan #1 T0 Part Cooling fan
M106 P1 C"T0 Part Cooling Fan" S0 L25 X255 B0.1                 ; configure fan #1 T0 Part Cooling Fan
M950 F2 C"122.out2"                                             ; create fan #2 T1 Heat Sink Fan
M106 P2 C"T1 Heatsink Fan" S0 B0.1 H2 T45                       ; configure fan #2 T1 Heat Sink Fan
M950 F3 C"122.out1"                                             ; create fan #3 T1 Part Cooling Fan
M106 P3 C"T1 Part Cooling Fan" S0 L25 X255 B0.1                 ; configure fan #3 T1 Part Cooling Fan
 
; Tools
M563 P0 D0 H1 F1                                                ; create tool #0 T0
M568 P0 R0 S0                                                   ; set initial tool #0 active and standby temperatures to 0C
M563 P1 D1 H2 F3                                                ; create tool #1 T1
M568 P1 R0 S0                                                   ; set initial tool #1 active and standby temperatures to 0C
 
; Miscellaneous
T0 ; select first tool

M557 X19:188 Y15:210 P10     ; Define grid for mesh bed compensation, origin in bed centre
G29 S2                       ; Disable mesh bed compensation
G28 Z                        ; Home Z
G1 Z6                        ; To avoid backlash move to point higher than start of calibration
M558.1 K1 S1.7               ; Calibrate probe
G1 Z6
G29 S0 K1

.

I can say for certain that the BLTouch offset is accurate. It may be worth noting that the M558.2 S parameter changed to 16 with the new trigger height. I know I'm close but I can't seem to figure out what I'm missing. Maybe I could just try different trigger heights ranging from 1.6 to 2.0 and see what that does? I am at your disposal. Thank you for the help!

@droftarts Have you given up on me? We're almost done! I'd like to eliminate the error if it's a problem. Let me know what I need to do.

@droftarts I think I found why it left out so much. Bed size is not correct. Fixing it now in the mesh.g. The M557 line should read M557 X19:188 Y15:210 P10 . The info you asked for is below. Is this how we fix the height map warning?

M557 X25:175 Y25:175 P10     ; Define grid for mesh bed compensation, origin in bed centre
G29 S2                       ; Disable mesh bed compensation
G28 Z                        ; Home Z
G1 Z6                        ; To avoid backlash move to point higher than start of calibration
M558.1 K1 S2                 ; Calibrate probe
G1 Z6
G29 S0 K1

@droftarts I am using the 12mm coil. The Calibration gave me a S parameter of 15. After I followed your instructions, I was able to complete the scan for the first time. However, I looks as though it should have done one more row. There's about 80mm of bed left unscanned. Also, I got a reply of:

Warning: the height map has a substantial Z offset. Suggest use Z-probe to establish Z=0 datum, then re-probe the mesh.
100 points probed, min error -0.275, max error -0.123, mean -0.220, deviation 0.041
Height map saved to file 0:/sys/heightmap.csv

How do I improve on that? Is it talking about Tram or a wavy bed? If its Tram the I can put I dial indicator on it to fix that. I'm going to continue to test at different heights pending your advice.

@dc42 The G31 K1 response:

G31 K1
Z probe 1: current reading 2467, threshold 500, trigger height 3.000, offsets X0.0 Y-38.0 U0.0

Do I need to change it?

@dc42 After I home with the BLTouch, the position is accurate. I fixed that yesterday so the nozzle does in fact move to 1mm above the bed on command. I've measured that the SZP is 2.7mm above the nozzle and the trigger height on the BLTouch is now accurate. What number should I have for the trigger height on the SZP and how do I get it? attaching an updated config.

; Configuration file for RepRapFirmware on Duet 3 Mini 5+ WiFi
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.5.4 on Sat Aug 10 2024 17:00:36 GMT-0400 (Eastern Daylight Time)
 
; General
G90                                                             ; absolute coordinates
M83                                                             ; relative extruder moves
M550 P"M3ID V2"                                                 ; set hostname
 
; Accessories
M575 P1 S0 B57600                                               ; configure PanelDue support
 
; Network
M552 S1                                                         ; configure WiFi adapter
M586 P0 S1                                                      ; configure HTTP
 
; Wait a moment for the CAN expansion boards to become available
G4 S2
 
; Accelerometers
M955 P121.0 I20                                                 ; configure accelerometer on board #121
M955 P122.0 I20                                                 ; configure accelerometer on board #122
 
; Smart Drivers
M569 P0.1 S0 D2                                                 ; driver 0.1 goes backwards (X axis)
M569 P0.2 S1 D2                                                 ; driver 0.2 goes forwards (Y axis)
M569 P0.3 S0 D2                                                 ; driver 0.3 goes backwards (Z axis)
M569 P0.4 S0 D2                                                 ; driver 0.4 goes forwards (U axis)
M569 P121.0 S1 D2                                               ; driver 121.0 goes forwards (extruder 0)
M569 P122.0 S1 D2                                               ; driver 122.0 goes forwards (extruder 1)
 
; Motor Idle Current Reduction
M906 I30                                                        ; set motor current idle factor
M84 S30                                                         ; set motor current idle timeout
 
; Axes
M584 X0.1 Y0.2 Z0.3 U0.4                                        ; set axis mapping
M350 X16 Y16 Z16 U16 I1                                         ; configure 16X microstepping with interpolation
M906 X1750 Y1750 Z800 U1750                                     ; set axis driver currents
M92 X80 Y88 Z1010 U80                                           ; configure steps per mm
M208 X-7:203 Y-9:250 Z0:200 U28:258                             ; set minimum and maximum axis limits
M566 X900 Y900 Z12 U900                                         ; set maximum instantaneous speed changes (mm/min)
M203 X6000 Y6000 Z180 U6000                                     ; set maximum speeds (mm/min)
M201 X500 Y500 Z20 U500                                         ; set accelerations (mm/s^2)
 
; Extruders
M584 E121.0:122.0                                               ; set extruder mapping
M350 E16:16 I1                                                  ; configure microstepping with interpolation
M906 E424:424                                                   ; set extruder driver currents
M92 E2682:2682                                                  ; configure steps per mm
M566 E150:150                                                   ; set maximum instantaneous speed changes (mm/min)
M203 E3600:3600                                                 ; set maximum speeds (mm/min)
M201 E3000:3000                                                 ; set accelerations (mm/s^2)
 
; Kinematics
M669 K0                                                         ; configure Cartesian kinematics
 
; BLtouch
M558 K0 P9 C"121.io0.in" H5 F8000:120 T6000                     ; configure BLTouch probe via slot #0
G31 P500 X0 Y24 Z4.249                                          ; set Z probe trigger value, offset and trigger height
M950 S0 C"121.io0.out"                                          ; create servo #0 for BLtouch
 
; Scanning Z probe
M558 K1 P11 C"121.i2c.ldc1612" F36000 T36000
M308 A"SZP coil" S10 Y"thermistor" P"121.temp2"                 ; thermistor on coil
G31 K1 Z3 Y-38                                                  ; define probe 1 offsets and trigger height
M558.2 K1 S17 R136464                                           ; set drive current and reading offset
 
; Endstops
M574 X1 P"io1.in" S1                                            ; configure X axis low end endstop
M574 Y1 P"io2.in" S1                                            ; configure Y axis low end endstop
M574 Z2 S1 P"io3.in"                                            ; configure Z axis high end endstop
M574 U2 P"io4.in" S1                                            ; configure U axis high end endstop
 
; Mesh Bed Compensation
M557 X25:175 Y25:175 S40:40                                     ; define grid for mesh bed compensation
 
; Sensors
M308 S0 P"temp0" Y"thermistor" A"Heated Bed" T100000 B4725 C7.06e-8 ; configure sensor #0
M308 S1 P"121.temp1" Y"thermistor" A"Nozzle" T100000 B4725 C7.06e-8 ; configure sensor #1
M308 S2 P"122.temp0" Y"thermistor" A"Nozzle" T100000 B4725 C7.06e-8 ; configure sensor #2
 
; Heaters
M950 H0 C"out2" T0                                              ; create heater #0 (Bed)
M143 H0 P0 T0 C0 S120 A0                                        ; configure heater monitor #0 for heater #0 (Bed)
M307 H0 R0.167 K0.222:0.000 D26.05 E1.35 S1.00 B0               ; configure model of heater #0 (Bed)
M950 H1 C"121.out0" T1                                          ; create heater #1 (T0)
M143 H1 P0 T1 C0 S300 A0                                        ; configure heater monitor #0 for heater #1 (T0)
M307 H1 R4.287 K0.528:0.232 D2.33 E1.35 S1.00 B0 V24.1          ; configure model of heater #1 (T0)
M950 H2 C"122.out0" T2                                          ; create heater #2 (T1)
M143 H2 P0 T1 C0 S300 A0                                        ; configure heater monitor #0 for heater #2 (T1)
M307 H2 R4.334 K0.514:0.239 D2.21 E1.35 S1.00 B0 V24.0          ; configure model of heater #2 (T1)
 
; Heated beds
M140 P0 H0                                                      ; configure heated bed #0
 
; Fans
M950 F0 C"121.out2"                                             ; create fan #0 T0 Heat Sink Fan
M106 P0 C"T0 Heatsink Fan" S0 B0.1 H1 T45                       ; configure fan #0 T0 Heat Sink Fan
M950 F1 C"121.out1"                                             ; create fan #1 T0 Part Cooling fan
M106 P1 C"T0 Part Cooling Fan" S0 L25 X255 B0.1                 ; configure fan #1 T0 Part Cooling Fan
M950 F2 C"122.out2"                                             ; create fan #2 T1 Heat Sink Fan
M106 P2 C"T1 Heatsink Fan" S0 B0.1 H2 T45                       ; configure fan #2 T1 Heat Sink Fan
M950 F3 C"122.out1"                                             ; create fan #3 T1 Part Cooling Fan
M106 P3 C"T1 Part Cooling Fan" S0 L25 X255 B0.1                 ; configure fan #3 T1 Part Cooling Fan
 
; Tools
M563 P0 D0 H1 F1                                                ; create tool #0 T0
M568 P0 R0 S0                                                   ; set initial tool #0 active and standby temperatures to 0C
M563 P1 D1 H2 F3                                                ; create tool #1 T1
M568 P1 R0 S0                                                   ; set initial tool #1 active and standby temperatures to 0C
 
; Miscellaneous
T0 ; select first tool

@droftarts Yea thats not it. When I home, for some reason it ends with the Nozzle 10mm above the bed (12mm for the SZP). When I execute a G29, it homes Z, calibrates the SZP, starts the scan but stops way short. Its attempting to scan at a measured height of 8mm. I'm no expert, but that doesn't seem right.
Before the error, the console answers with "g29
Scanning probe coefficients [5.032e-1, 4.463e-4, -3.360e-11, -4.840e-16], reading at trigger height 999999, rms error 0.466mm."

@droftarts I got a new error now: Error: Bad reading from scanning probe - try recalibrating the probe. I think its a height issue as it is very high from the bed. Like 8mm high. I do believe that being cause by another issue. I need to verify the steps/mm on my Z axis. I think it much higher than it thinks it is and can't complete the scan. Let me confirm.

@droftarts Here is the mesh.g file again:

M557 X25:175 Y25:175 P10     ; Define grid for mesh bed compensation, origin in bed centre
G29 S2                       ; Disable mesh bed compensation
G28 Z                        ; Home Z
G1 Z6                        ; To avoid backlash move to point higher than start of calibration
M558.1 K1 S2                 ; Calibrate probe
G1 Z6

When I give it a G29 command from the console, all it does is home Z then calibrates the the scanner. How do I get it to scan the bed and create a mesh? I assume the problem is in the mesh.g but I copied it from the documentation.