Hello, I have recently installed a Duet 3 Mini into my Ender 5 Plus. I am currently having an issue with homing z and both z motors being synced? It is almost like the steps per mm are off on my z axis motors and it is causing a binding issue when moving the bed up. I also cannot get the bed to lift after the hot end moves to the center to probe. The Bltouch self tests fine, probe deploys and all. Just this issue with the bed.

config.g
homez.g
bed.g
homey.g
homex.g

Good Evening all,

I have and Ender 5 that I recently converted to dual z axis with a Duet Wifi 2 running it. I had a great config file running before but I do not understand the guide. I have the second motor hooked up to ZB motor connection. I am using a bl touch for an endstop. My latest attend resulted in the Z motors spinning in opposite direction regardless of changing in the config file. Here is my config, bed, homeall, and homez files. Thank you in advance

; General preferences
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"Ender 5" ; set printer name

; Network
M552 S1 ; enable network
M586 P0 S1 ; enable HTTP
M586 P1 S0 ; disable FTP
M586 P2 S0 ; disable Telnet

; Drives
M569 P0 S1 ; physical drive 0 goes forwards
M569 P1 S1 ; physical drive 1 goes forwards
M569 P2 S0 ; physical drive 2 goes backwards
M569 P3 S0 ; physical drive 3 goes forwards
M569 P4 S0 ; physical drive 4 goes backwards
M584 X0 Y1 Z2 E3:4 ; set drive mapping
M350 X32 Y32 Z32 E32:32 I0 ; configure microstepping without interpolation
M92 X159.875 Y160.978 Z1598.13 E204.15 ; set steps per mm
M566 X600.00 Y600.00 Z60.00 E300.00:60.00 ; set maximum instantaneous speed changes (mm/min)
M203 X30000.00 Y30000.00 Z600.00 E600.00:600.00 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z200.00 E4000.00:200.00 ; set accelerations (mm/s^2)
M906 X850 Y800 Z700 E800:700 I30 ; set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S1 ; set axis minima
M208 X225 Y211 Z300 S0 ; set axis maxima

; Endstops
M574 X1 S1 P"xstop" ; configure active-high endstop for low end on X via pin xstop
M574 Y1 S1 P"ystop" ; configure active-high endstop for low end on Y via pin ystop
M574 Z1 S2 ; configure Z-probe endstop for low end on Z

; Z-Probe
M950 S0 C"exp.heater3" ; create servo pin 0 for BLTouch
M558 P9 C"^zprobe.in" H5 F6000 T6000 ; set Z probe type to bltouch and the dive height + speeds
G31 P0 X-55 Y-13 Z1.697 ; set Z probe trigger value, offset and trigger height
M557 X0:170 Y0:191 S20 ; define mesh grid

; Heaters
M308 S0 P"bedtemp" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin bedtemp
M950 H0 C"bedheat" T0 ; create bed heater output on bedheat and map it to sensor 0
M307 H0 B1 S1.00 ; enable bang-bang mode for the bed heater and set PWM limit
M140 H0 ; map heated bed to heater 0
M143 H0 S120 ; set temperature limit for heater 0 to 120C
M308 S1 P"e0temp" Y"thermistor" T100000 B4138 ; configure sensor 1 as thermistor on pin e0temp
M950 H1 C"e0heat" T1 ; create nozzle heater output on e0heat and map it to sensor 1
M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
M143 H1 S280 ; set temperature limit for heater 1 to 280C

; Fans
M950 F0 C"fan0" Q500 ; create fan 0 on pin fan0 and set its frequency
M106 P0 S1 H1 T45 ; set fan 0 value. Thermostatic control is turned on
M950 F1 C"fan1" Q500 ; create fan 1 on pin fan1 and set its frequency
M106 P1 S1 H1 T45 ; set fan 1 value. Thermostatic control is turned on
M950 F2 C"fan1" Q500 ; create fan 2 on pin fan1 and set its frequency
M106 P2 S0.3 H-1 ; set fan 2 value. Thermostatic control is turned off

; Tools
M563 P0 F0 ; define tool 0
G10 P0 X0 Y0 Z0 ; set tool 0 axis offsets
G10 P0 R0 S0 ; set initial tool 0 active and standby temperatures to 0C

; Custom settings are not defined

homeall.g; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v3.2.3 on Sat Apr 24 2021 17:43:04 GMT-0500 (Central Daylight Time)
G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G1 H1 X-230 Y-216 F1800 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 H2 X5 Y5 F6000 ; go back a few mm
G1 H1 X-230 Y-216 F360 ; move slowly to X and Y axis endstops once more (second pass)
G90 ; absolute positioning
G1 X55 Y13 F6000 ; go to first bed probe point and home Z
G30 ; home Z by probing the bed

; Uncomment the following lines to lift Z after probing
;G91 ; relative positioning
;G1 Z5 F100 ; lift Z relative to current position
;G90 ; absolute positioning

homez.g; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool v3.2.3 on Sat Apr 24 2021 17:43:05 GMT-0500 (Central Daylight Time)
G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G90 ; absolute positioning
G1 X55 Y13 F6000 ; go to first probe point
G30 ; home Z by probing the bed

; Uncomment the following lines to lift Z after probing
;G91 ; relative positioning
;G1 Z5 F100 ; lift Z relative to current position
;G90 ; absolute positioning

@Phaedrux sorry, I am changing the z-probe offset in the g31 to match my hero me 5 fan setup. In the large bundle they do just like factory.

I seemed to fix the endstop with a switch of the cable. Now when I home Z the printer moves to the offset coordinates instead of zero.

retractprobe.g homez.g homey.g homex.g homeall.g deployprobe.g config.g bed.g Ok so I have been printing fine for about 6 months and then all of a sudden after a long print(22 hrs) my x endstop is always triggered. I have replaced the switch with a know good part and tested with m119 and reports that the endstop is at min. I had made no changes to config file or anything else. Any ideas?

Also in trying to fix this, I used the original z stop and forced myself to get the bltouch configured as the zstop and it worked twice and is now reporting a similar reaction as the xstop, Probe triggered already. But the pin never dropped to be triggered. When I manual drop and raise the pin it works just fine. Has me completely stumped.

and one final issue I have been unsuccessful at solving is when I put the offset for my probe those are the coordinates the carriage moves to instead of starting at 0.
[0_1600531791458_Config files.zip](Uploading 100%)

@Phaedrux So turned on the printer first thing this morning to try and calibrate the bltouch and went right back to the same issues. I am begining to suspect bad wire in the cable so I have ordered another. Not sure what else it could be. It was working just fine last night. Tested it unmounted, turned it off and mounted it, and then turned it back on this morning.

@Phaedrux Thanks for the help! SO far so good. I will try leveling the bed tomorrow.

@Phaedrux it is just the factory ender 5 bed heater. Is that normal?

@Phaedrux The probe cycles twice and then starts blinking red.

; Configuration file for Duet WiFi (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.1.3 on Mon Jul 06 2020 13:33:30 GMT-0500 (Central Daylight Time)

; General preferences
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"Ender 5" ; set printer name

; Network
M552 S1 ; enable network
M586 P0 S1 ; enable HTTP
M586 P1 S0 ; disable FTP
M586 P2 S0 ; disable Telnet

; Drives
M569 P0 S1 ; physical drive 0 goes forwards
M569 P1 S1 ; physical drive 1 goes forwards
M569 P2 S0 ; physical drive 2 goes backwards
M569 P3 S1 ; physical drive 3 goes forwards
M584 X0 Y1 Z2 E3 ; set drive mapping
M350 X16 Y16 Z16 E16 I0 ; configure microstepping without interpolation
M92 X80.00 Y80.00 Z400.00 E96.15 ; set steps per mm
M566 X600.00 Y600.00 Z60.00 E300.00 ; set maximum instantaneous speed changes (mm/min)
M203 X30000.00 Y30000.00 Z600.00 E600.00 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z200.00 E4000.00 ; set accelerations (mm/s^2)
M906 X850 Y800 Z700 E800 I30 ; set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S1 ; set axis minima
M208 X220 Y220 Z300 S0 ; set axis maxima

; Endstops
M574 X1 S1 P"xstop" ; configure active-high endstop for low end on X via pin xstop
M574 Y1 S1 P"ystop" ; configure active-high endstop for low end on Y via pin ystop
M574 Z1 S2 ; configure Z-probe endstop for low end on Z

; Z-Probe
M950 S0 C"exp.heater3" ; create servo pin 0 for BLTouch
M558 P9 C"^zprobe.in" H5 F0 T6000 ; set Z probe type to bltouch and the dive height + speeds
G31 P0 X0 Y0 Z2.5 ; set Z probe trigger value, offset and trigger height
M557 X15:195 Y15:195 S20 ; define mesh grid

; Heaters
M308 S0 P"bedtemp" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin bedtemp
M950 H0 C"bedheat" T0 ; create bed heater output on bedheat and map it to sensor 0
M307 H0 B1 S1.00 ; enable bang-bang mode for the bed heater and set PWM limit
M140 H0 ; map heated bed to heater 0
M143 H0 S120 ; set temperature limit for heater 0 to 120C
M308 S1 P"e0temp" Y"thermistor" T100000 B4138 ; configure sensor 1 as thermistor on pin e0temp
M950 H1 C"e0heat" T1 ; create nozzle heater output on e0heat and map it to sensor 1
M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit

; Fans
M950 F0 C"fan0" Q500 ; create fan 0 on pin fan0 and set its frequency
M106 P0 S1 H0 T45 ; set fan 0 value. Thermostatic control is turned on
M950 F1 C"fan1" Q500 ; create fan 1 on pin fan1 and set its frequency
M106 P1 S1 H0 T45 ; set fan 1 value. Thermostatic control is turned on
M950 F2 C"fan2" Q500 ; create fan 2 on pin fan1 and set its frequency
M106 P2 S0.3 H-1 ; set fan 2 value. Thermostatic control is turned off

; Tools
M563 P0 D0 H1 F0 ; define tool 0
G10 P0 X0 Y0 Z0 ; set tool 0 axis offsets
G10 P0 R0 S0 ; set initial tool 0 active and standby temperatures to 0C

; Custom settings are not defined

Deploy and retract

M280 P0 S10 ; deploy BLTouch
M280 P0 S90 ; retract BLTouch

Fixed the fan error. Not sure what to do with the heater error or that the z probe is reading 1000 like it is being triggered.

@TheBiologist said in Ender 5 Duet Wifi 2 and BLTouch 3.1:

M98 P"config.g"

M98 P"config.g"

HTTP is enabled on port 80
FTP is disabled
TELNET is disabled
Warning: Heater 0 appears to be over-powered. If left on at full power, its temperature is predicted to reach 365C
Error: Pin 'fan1' is not free
Error: Fan number 2 not found

m115
FIRMWARE_NAME: RepRapFirmware for Duet 2 WiFi/Ethernet FIRMWARE_VERSION: 3.1.1 ELECTRONICS: Duet WiFi 1.02 or later FIRMWARE_DATE: 2020-05-19b2