Hello everyone,

This is just a quick thank you to the community for all the help people have provided to get my replicator 2 Duet conversion up and running.

I have never built or programmed a printer before but all the resources on the Duet documentation site and the various community threads have made this a real pleasure to attempt.

My first prints have been ran today and im extremely happy so far, i still need to perform some calibration work and tweek some settings for the Hermera hotend but having the printer functioning again is a relief. It feels like loosing a limb not having it there when a job presents its self.

Anyway this is all a great warm up for my next project the XL printer pictured below :-).

-resized.jpg)

Hi all,

Im in the process of of upgrading my CNC (workbee) and have experienced an issue when i have moved the locations of my endstops. They are now situated bottom left of the machine, previously top right. I have x and y homing to bottom left but the machine sees them as at axis max. When i move the machine after homing im required to use negative values. if i reverse the motors to give positive values the machine homes away from the endstops, how can i fix this?

M574 X0 P"xstop" ; Set active high X endstop
M574 Y0 P"ystop" ; Set active high Y endstop
M574 Z1 P"zstop" ; Set active high Z endstop

M208 X0 Y0 Z0 S1 ; Set axis minima
M208 X740 Y775 Z125 ; Set axis maxima

M569 P0 S0 ; Drive 0 goes forwards
M569 P1 S0 ; Drive 1 goes forwards
M569 P2 S1 ; Drive 2 goes forwards
M569 P3 S0 ; Drive 3 goes forwards

HOMEALL.G
G91 ; relative positioning
G21 ; Set units to mm
G1 H1 Z{move.axes[2].max2} F900 ; move quickly to Z axis endstop and stop there (first pass)
G1 H1 X{move.axes[0].max2} F2400 ; move quickly to X axis endstops and stop there (first pass)
G1 H1 Y{move.axes[1].max2} F2400 ; move quickly to Y axis endstops and stop there (first pass)
G92 X{move.axes[0].max} Y{move.axes[1].max} Z{move.axes[2].max} ; Set Home Position
G1 X-3 Y-3 Z-3 F2400 ; go back a few mm
G1 H1 X{move.axes[0].max2} F300 ; move slowly to X axis endstops once more (second pass)
G1 H1 Y{move.axes[1].max2} F300 ; move slowly to Y axis endstops once more (second pass)
G1 H1 Z{move.axes[2].max2} F300 ; move slowly to Z axis endstop once more (second pass)
G92 X{move.axes[0].max} Y{move.axes[1].max} Z{move.axes[2].max} ; Set Home Position
G90 ; absolute positioning

Hello everyone,

This is just a quick thank you to the community for all the help people have provided to get my replicator 2 Duet conversion up and running.

I have never built or programmed a printer before but all the resources on the Duet documentation site and the various community threads have made this a real pleasure to attempt.

My first prints have been ran today and im extremely happy so far, i still need to perform some calibration work and tweek some settings for the Hermera hotend but having the printer functioning again is a relief. It feels like loosing a limb not having it there when a job presents its self.

Anyway this is all a great warm up for my next project the XL printer pictured below :-).

-resized.jpg)

@infiniteloop
Thank you for all the help, i now have all the homing moves going in the correct direction and a 0,0 point set at front left of the bed. The final issue turned out to be the X,Y motor directions, so a quick reverse of the M569 command got it all moving correctly.

Thanks again for the patience in explaining all this.

Dan.

Does this need changes to the m569 command for motor direction? The behavior i now have while testing this on the X axis is the axis will home away from the end stop or if negative values are used in the homex.g will home towards the endstop perform the correct back off and re-trigger operation then wont let me jog the carriage in a negative direction only further in to the endstop.

@infiniteloop

So iv poured over that link for some time and it seems my solution has to be two minus values in the X/Y to account for the trigger position of the end stops then simply define the maximum print area the nozzle can reach.

; Axis Limits
M208 X200 Y90 Z150 S0 ; set axis maxima and high homing switch positions
M208 X-60 Y-56 Z0 S1 ; set axis minima and low homing switch positions

; Enable Panel Due Connector
M575 P1 S1 B57600 ; Enables connector and sets baud rate

; Endstops- Switches
M574 X1 S1 P"!xstop" ; X min active high endstop switch
M574 Y1 S1 P"!ystop" ; Y min active high endstop switch
M574 Z1 S1 P"!zstop" ; Z min active high endstop switch - Config for hard Z Endstop

;Touch Probe
M950 S0 C"exp.heater3" ; define probe servo pin
M558 P9 C"^zprobe.in" H5 F100 T2000 ; BLTouch Probe
G31 P50 X43 Y5 Z1.355 ; Set Z probe trigger value, offset and trigger height - Increase Z value to move bed closer to nozzle

M557 X0:200 Y0:90 S10 ; Define mesh grid

@infiniteloop

Yeah the intention is for the end stops to be positioned in the right rear corner of the printer (replicator 2 conversion) if looking at it from the front as in the image below.

config.g
; General preferences
M111 S0 ; Debugging off
G21 ; Work in millimetres
G90 ; Send absolute coordinates...
M83 ; ...but relative extruder moves
M555 P2 ; Set firmware compatibility to look like Marlin

; Axis Limits
M208 X200 Y90 Z150 S0 ; set axis maxima and high homing switch positions
M208 X-59.83 Y-56.05 Z0 S1 ; set axis minima and low homing switch positions

; Enable Panel Due Connector
M575 P1 S1 B57600 ; Enables connector and sets baud rate

; Endstops- Switches
M574 X1 S1 P"!xstop" ; X min active high endstop switch
M574 Y1 S1 P"!ystop" ; Y min active high endstop switch
M574 Z1 S1 P"!zstop" ; Z min active high endstop switch - Config for hard Z Endstop

;Touch Probe
M950 S0 C"exp.heater3" ; define probe servo pin
M558 P9 C"^zprobe.in" H5 F100 T2000 ; BLTouch Probe
G31 P50 X43.07 Y4.68 Z1.355 ; Set Z probe trigger value, offset and trigger height - Increase Z value to move bed closer to nozzle

M557 X0:200 Y0:90 S10 ; Define mesh grid

; Drives
M569 P0 S0 ; Drive 0 goes backwards
M569 P1 S0 ; Drive 1 goes backwards
M569 P2 S1 ; Drive 2 goes forwards
M569 P3 S1 ; Drive 3 goes forwards
M569 P4 S1 ; Drive 4 goes forwards
M584 X0 Y1 Z2 E3 ; set drive mapping
M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
M92 X88.573186 Y177.78 Z400 E409 ; Set steps per mm
M566 X900 Y900 Z300 E1200 ; Set maximum instantaneous speed changes (mm/min)
M203 X1080000 Y1080000 Z600 E96000 ; Set maximum speeds (mm/min)
M201 X1000 Y1000 Z100 E2000 ; Set accelerations (mm/s^2)
M906 X900 Y1000 Z400 E1200 I30 ; Set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Heaters
M308 S0 P"bedtemp" Y"thermistor" T100000 B3974 C0 R4700 ; 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
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 B4725 C7.06e-8 ; 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
M143 H1 S280 ; set temperature limit for heater 1 to 280C

M307 H0 R0.261 K0.401:0.000 D3.11 E1.35 S1.00 B0 ; Set PID values for Heatedbed - derived from autotune
M307 H1 R1.219 K0.254:0.000 D6.15 E1.35 S1.00 B0 V19.9 ; Set PID values for Extruder 1 - derived from autotune

; Network
M550 P"Duet_Rep2X" ; Set machine name
;M551 P"XXXXX" ; Set password
M552 S1 ; Enable network
;M552 P192.168.0.98 ;Fixed IP Address
;M554 P192.168.0.1 ;Gateway
;M553 P255.255.255.0 ;Netmask

; Access point is configured manually via M587 by the user
M586 P0 S1 ; Enable HTTP
M586 P1 S1 ; Enable FTP
M586 P2 S0 ; Disable Telnet

; Fans
M950 F0 C"fan0" Q500 ; Set fan 0 value, PWM signal inversion and frequency.
M106 P0 T45 H1 ; Set fan 0. Thermostatic control is turned on at 45 celcius.
M106 P0 S0 ; Switch cooling fan off

; Accelerometer
M955 P0 C"spi.cs3+spi.cs4"

; 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
M207 S1.2 F1200 ; set 1.2mm retract distance for G10 command

; Select Tool
T0

; Custom settings are not configured

homex.g
; Lift Z relative to current position
G91
G1 Z5 F150000 H2
G90

; Move quickly to X axis endstop and stop there (first pass)
G1 X-290 F1800 H1

; Go back a few mm
G91
G1 X5 F150000
G90

; Move slowly to X axis endstop once more (second pass)
G1 X-290 F360 H1

; Lower Z again
G91
G1 Z-5 F150000 H2
G90

homey.g
; Lift Z relative to current position
G91
G1 Z5 F150000 H2
G90

; Move quickly to Y axis endstop and stop there (first pass)
G1 Y-155 F1800 H1

; Go back a few mm
G91
G1 Y5 F150000
G90

; Move slowly to X axis endstop once more (second pass)
G1 Y-155 F360 H1

; Lower Z again
G91
G1 Z-5 F150000 H2
G90

homeall.g
; Relative positioning
G91

; Lift Z
G1 Z5 F600 H2

; Course home X and Y
G1 X-290 F1800 H1
G1 Y-155 F1800 H1

; Move away from the endstops
G1 X5 Y5 F150000

; Fine home X and Y
G1 X-290 Y-155 F360 H1

; Code for Hard Endstop home Z
; Move Extruder out of the way
;G90
;G1 X-12 Y-10 F150000
; Home Z against hard enstop
;G91
;G1 Z-200 F400 H1 ; rough home Z axis;G1 Z2 F400 ; move down by 2mm
;G1 Z-155 F40 H1 ; fine home z axis
; Adjust Z distance from Z endstop
;G92 Z0.00 ; positive - Move bed closer to extruder, negative - Move bed away from extruder

; Absolute positioning
G90

; Code for Sensor Based Z Homing
; Go to first bed probe point and home Z
G1 X63 Y16 F150000
G30

; Uncomment the following line to lift the nozzle after probing
G1 Z5 F300 H2

@infiniteloop

So the following is from my config.g file,
; Axis Limits
M208 X200 Y90 Z150 S0 ; set axis maxima and high homing switch positions
M208 X-59.83 Y-56.05 Z0 S1 ; set axis minima and low homing switch positions

; 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
M207 S1.2 F1200 ; set 1.2mm retract distance for G10 command

;Touch Probe
M950 S0 C"exp.heater3" ; define probe servo pin
M558 P9 C"^zprobe.in" H5 F100 T2000 ; BLTouch Probe
G31 P50 X43.07 Y4.68 Z1.355 ; Set Z probe trigger value, offset and trigger height - Increase Z value to move bed closer to nozzle

From you explanation the tool nozzle is assumed to be the 0,0 point by default and you need to define the difference between this 0,0 and where the endstops trigger?

Hello everyone,

I am wondering if someone can confirm how the tool and z probe offsets should be set up correctly? My X and Y axis are zeroed by the extruder carriage intercepting the X and Y endstops, using that zero point i have input the nozzle coordinate as plus 59 in X and plus 56 in Y. My BLtouch is sitting at plus 102 in X and plus 61 in Y, however my reading of the documentation is my probe coordinate should be set from the tool giving 43 in X and 5 in Y from the tool head.

"1X and Y offsets of the Z probe relative to the print head (i.e. the position when the empty tool is selected) can be specified. This allows you to calculate your probe coordinates based on the geometry of the bed, without having to correct them for Z probe X and Y offset."

Sorry if this seems obvious but my experience with CMM would be to set the datums and zero point and everything is referenced off that.

Cheers,
Dan

droftarts,
Thanks so much for the help, the probe is now deploying and retracting on command.

Hello Everyone,

I have been working to install my Creality BLtouch on to my newly upgraded replicator 2x + Duet 2 Wifi. I have been following a couple of threads and blogs of people who have completed it as well as the official Duet documentation. So far it looks like its wired correctly and powers up, however i am struggling to get it to test deploy.

Would some one mind looking over my config.g for any errors or obvious noob mistakes?
Any and all help would be appreciated.

config.g
; Configuration file for Duet WiFi (firmware version 3.1.1)
; executed by the firmware on start-up
;
; Modified from V3 config.g on 4-06-2020

; General preferences
M111 S0 ; Debugging off
G21 ; Work in millimetres
G90 ; Send absolute coordinates...
M83 ; ...but relative extruder moves
M555 P2 ; Set firmware compatibility to look like Marlin
M208 X0 Y0 Z0 S1 ; Set axis minima (bed offset 12 and 10 from zero)
M208 X270 Y140 Z150 S0 ; Set axis maxima (reduced by offset above)

; Enable Panel Due Connector
M575 P1 S1 B57600 ; Enables connector and sets baud rate

; Endstops- Switches
M574 X1 S1 P"!xstop" ; X min active high endstop switch
M574 Y1 S1 P"!ystop" ; Y min active high endstop switch
M574 Z1 S1 P"!zstop" ; Z min active high endstop switch - Config for hard Z Endstop

; Endstops- Z Probe
M574 X1 S1 P"!xstop" ; X min active high endstop switch
M574 Y1 S1 P"!ystop" ; Y min active high endstop switch
M574 Z1 S1 P"!zstop" ; Z min active high endstop switch - Config for Z Probe

;Touch Probe
M558 P9 C"^zprobe.in" H5 F100 T2000 ; BLTouch Probe
G31 P50 X43.07 Y4.68 Z1.5 ; Set Z probe trigger value, offset and trigger height - Increase Z value to move bed closer to nozzle

;M557 X5:204 Y3:242 S20 ; Define mesh grid

; Drives
M569 P0 S0 ; Drive 0 goes backwards
M569 P1 S0 ; Drive 1 goes backwards
M569 P2 S1 ; Drive 2 goes forwards
M569 P3 S1 ; Drive 3 goes forwards
M569 P4 S1 ; Drive 4 goes forwards
M584 X0 Y1 Z2 E3 ; set drive mapping
M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
M92 X88.573186 Y177.78 Z400 E409 ; Set steps per mm
M566 X900 Y900 Z300 E1200 ; Set maximum instantaneous speed changes (mm/min)
M203 X1080000 Y1080000 Z600 E96000 ; Set maximum speeds (mm/min)
M201 X1000 Y1000 Z100 E2000 ; Set accelerations (mm/s^2)
M906 X900 Y1000 Z400 E1200 I30 ; Set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Heaters
M308 S0 P"bedtemp" Y"thermistor" T100000 B3974 C0 R4700 ; 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
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 B4725 C7.06e-8 ; 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
M143 H1 S280 ; set temperature limit for heater 1 to 280C

M307 H0 R0.261 K0.401:0.000 D3.11 E1.35 S1.00 B0 ; Set PID values for Heatedbed - derived from autotune
M307 H1 R1.219 K0.254:0.000 D6.15 E1.35 S1.00 B0 V19.9 ; Set PID values for Extruder 1 - derived from autotune

; Disabled heater to free up PWM pin For BLTouch
M307 H3 A-1 C-1 D-1

; Network
M550 P"Duet_Rep2X" ; Set machine name
;M551 P"XXXXX" ; Set password
M552 S1 ; Enable network
;M552 P192.168.0.98 ;Fixed IP Address
;M554 P192.168.0.1 ;Gateway
;M553 P255.255.255.0 ;Netmask

; Access point is configured manually via M587 by the user
M586 P0 S1 ; Enable HTTP
M586 P1 S1 ; Enable FTP
M586 P2 S0 ; Disable Telnet

; Fans
M950 F0 C"fan0" Q500 ; Set fan 0 value, PWM signal inversion and frequency.
M106 P0 T45 H1 ; Set fan 0. Thermostatic control is turned on at 45 celcius.
M106 P0 S0 ; Switch cooling fan off

; Accelerometer
M955 P0 C"spi.cs3+spi.cs4"

; Tools
M563 P0 D0 H1 F0 ; Define tool 0
G10 P0 X50.5 Y56 Z0 ; Set tool 0 axis offsets
G10 P0 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C
M207 S1.2 F1200 ; set 1.2mm retract distance for G10 command

; Select Tool
T0

; Custom settings are not configured

deployprobe.g
; BLTouch probe deploy
M280 P3 S10

retractprobe.g
; BLTouch probe retract
M280 P3 S90