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    Duet maestro and weirdness on start gcode

    Tuning and tweaking
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    • Agniusm
      Agniusm last edited by

      My maestro started behaving weird. I dont remember if it happened after flashing firmware. I have this start code:
      G28 ; home all without mesh bed level
      G0 Z70 F500 ; get head above bed to keep it cool
      M106 P1 S255 ; Turn on fan
      M140 S[first_layer_bed_temperature] ; set bed temp
      M104 S180
      M190 S[first_layer_bed_temperature] ; wait for bed temp
      M104 S180
      G28 ; home all without mesh bed leveling
      G29 S0 ; mesh bed leveling
      M106 S0 ; Turn off fan
      M104 S[first_layer_temperature] ; set extruder temp
      M109 S[first_layer_temperature] ; wait for extruder temp
      G1 Y0 X2 Z0.5 F7000 ; go outside print area
      G92 E0 ; reset extrusion distance
      G1 X70.0 E9 F1000 ; intro line
      G1 X140 E12.5 F1000 ; intro line
      M572 D0 S0.07 ; Pressure advance
      It does not do "go outside print area" . Extruder stays as where probing finished and does intro line ~10mm above bed at the back instead of front at Z0.5mm

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      • clearlynotstef
        clearlynotstef last edited by

        ...What is the intended behavior, and what is it doing instead?

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        • Agniusm
          Agniusm last edited by

          It jas to move to the front of the bed and do purging line. Instead it stays at the back and purges mid air.

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          • clearlynotstef
            clearlynotstef last edited by

            Post your config.g

            Agniusm 1 Reply Last reply Reply Quote 0
            • Phaedrux
              Phaedrux Moderator last edited by

              Perhaps you need to add G90 before the move to go out of the printing area to make it an absolute position move and then back to G91 for a relative move to draw the prime line.

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              • Agniusm
                Agniusm last edited by

                The thing is it was working fine. I still have duet wifi(eth now) with the same script and it works fine.

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                • Agniusm
                  Agniusm @clearlynotstef last edited by

                  @clearlynotstef said in Duet maestro and weirdness on start gcode:

                  Post your config.g

                  ; Configuration file for Duet Maestro (firmware version 1.21)

                  ; General preferences
                  G90 ; Send absolute coordinates...
                  M83 ; ...but relative extruder moves

                  ; Network
                  M550 P"Scrappy" ; Set machine name
                  M552 P0.0.0.0 S1 ; Enable network and acquire dynamic address via DHCP
                  M586 P0 S1 ; Enable HTTP
                  M586 P1 S0 ; Disable FTP
                  M586 P2 S0 ; Disable Telnet

                  ; Drives
                  M584 X0 Y1 Z2:4 E3 P3 ; two Z motors connected to driver outputs 0, 1, 2 and 4
                  M671 X40:287 Y21:21 S5 ; leadscrews left and right

                  M569 P0 S0 ; Drive 0 goes forwards
                  M569 P1 S0 ; Drive 1 goes forwards
                  M569 P2 S0 ; Drive 2 goes forwards
                  M569 P3 S0 ; Drive 3 goes forwards
                  M569 P4 S0 ; Drive 3 goes forwards
                  M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
                  M92 X98.66 Y78.54 Z396.04 E417.61 ; Set steps per mm X99.25 Y79.0
                  M566 X400 Y400 Z12 E150 ; Set maximum instantaneous speed changes Jerk (mm/min) buvo Z24 E300
                  M203 X12000 Y12000 Z1000 E1200 U6000 ; Set maximum speeds (mm/min) Z800
                  M201 X600 Y600 Z100 E5000 ; Set accelerations (mm/s^2) Z200
                  M906 X800 Y800 Z700 E750 I5 ; Set motor currents (mA) and motor idle factor in per cent
                  M84 S10 ; Set idle timeout

                  ; Axis Limits
                  M208 X0 Y-30 Z0 S1 ; Set axis minima
                  M208 X310 Y209 Z220 S0 ; Set axis maxima

                  ; Z-Probe
                  M558 P4 I0 F400 X0 Y0 Z0 T12000 ; Set Z probe type, the dive height + speeds
                  G31 P500 X23 Y6 Z0.566 ; Set Z probe trigger value, offset and trigger height
                  M557 X35.5:239.5 Y10.5:209 S102:99 ; Define mesh grid

                  ; Endstops
                  M574 X1 Y1 Z2 S1 ; Define active low and unused microswitches
                  ; M591 D0 P2 C4 S1 ; Filament runout
                  ; M556 S79.95 X-0.1 Y0.5 Z0.55 ; Axes compensation

                  ; Heaters
                  M143 S350 ; Set maximum hotend temperature to 350C
                  M143 H0 S120 ; Set maximum bed temperature to 130C
                  M305 P1 T100000 B3950 C0 R2200 ; Set thermistor + ADC parameters for heater 1 Nozzle
                  M305 P0 T100000 B3950 C0 R2200 ; Set thermistor + ADC parameters for heater 0 Bed
                  M307 H1 A435.6 C127.3 8.8 B0 ; Use PID on extruder heater use M303 gain 435.6, time constant 127.3, dead time 8.8, max PWM 1.00, calibration voltage 12.0
                  M307 H0 A80.2 C399.8 D2.2 B0 ; Use PID on bed heater use M303
                  M570 H1 P10 T20 S160 ; Heater fault settings

                  ; Fans
                  M106 P2 S0 L255 F500 T45 H1 ; Hotend fan, on at 45C M106 P1 T45 S0.7 H1:2
                  M106 P1 S0 I0 F500 H-1 ; Part cooling fan
                  ; M106 P2 S0 I0 F500 H-1 ; LED lights

                  ; Tools
                  M563 P0 D0 H1 F1 ; 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
                  ; LCD
                  M918 P1 E4 ; enable lcd

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                  • Veti
                    Veti last edited by

                    post the actual start code of a generated gcode file.
                    the slicer will insert additional commands at the beginning.

                    Agniusm 1 Reply Last reply Reply Quote 0
                    • Agniusm
                      Agniusm @Veti last edited by Agniusm

                      @veti here is the beginning of the gcode:

                      ; external perimeters extrusion width = 0.42mm
                      ; perimeters extrusion width = 0.42mm
                      ; infill extrusion width = 0.50mm
                      ; solid infill extrusion width = 0.42mm
                      ; top infill extrusion width = 0.42mm
                      ; first layer extrusion width = 0.42mm

                      M107
                      G28 W ; home all without mesh bed level
                      G0 Z70 F500 ; get head above bed to keep it cool
                      M106 P1 S255 ; Turn on fan
                      M140 S75 ; set bed temp
                      M104 S180
                      M190 S75 ; wait for bed temp
                      M104 S180
                      G28 W ; home all without mesh bed leveing
                      G29 S0 ; mesh bed leveling
                      M106 S0 ; Turn off fan
                      M104 S235 ; set extruder temp
                      M109 S235 ; wait for extruder temp
                      G1 Y0.0 F5000 ; go outside print area
                      G92 E0 ; reset extrusion distance
                      G1 X70.0 E9 F1000 ; intro line
                      G1 X140 E12.5 F1000 ; intro line
                      M572 D0 S0.07 ; Pressure advance
                      ; Filament gcode
                      G21 ; set units to millimeters
                      G90 ; use absolute coordinates
                      M83 ; use relative distances for extrusion
                      G1 E-1.00000 F2100.00000
                      G1 Z0.250 F9000.000
                      ; PURGING FINISHED
                      G1 X130.316 Y151.203
                      G1 E1.00000 F2100.00000
                      M204 S1000
                      G1 F900
                      G1 X183.884 Y151.203 E1.95815
                      G1 X183.884 Y164.498 E0.48600
                      G1 X130.316 Y164.498 E1.95816
                      G1 X130.316 Y151.263 E0.48380
                      G1 X130.682 Y151.569 F9000.000
                      G1 F900
                      G1 X183.518 Y151.569 E1.93137
                      G1 X183.518 Y164.131 E0.45921
                      G1 X130.682 Y164.131 E1.93137
                      G1 X130.682 Y151.629 E0.45702
                      G1 X131.049 Y151.935 F9000.000

                      It does not contain full G1 Y0 X2 Z0.5 F7000 ; go outside print area command with set x coordinate but since i added it, has same outcome.

                      dc42 Phaedrux 2 Replies Last reply Reply Quote 0
                      • dc42
                        dc42 administrators @Agniusm last edited by

                        @agniusm said in Duet maestro and weirdness on start gcode:

                        G28 W ; home all without mesh bed level

                        Why the W parameter?

                        Agniusm 1 Reply Last reply Reply Quote 0
                        • Agniusm
                          Agniusm @dc42 last edited by

                          @dc42 It was from prusa start script but its not there now. No change still. Probably had no effect anyway.

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                          • Phaedrux
                            Phaedrux Moderator @Agniusm last edited by

                            @agniusm said in Duet maestro and weirdness on start gcode:

                            G1 Y0.0 F5000 ; go outside print area
                            G92 E0 ; reset extrusion distance
                            G1 X70.0 E9 F1000 ; intro line
                            G1 X140 E12.5 F1000 ; intro line

                            I say again, it looks like you're missing G90 and G91 commands here. G1 Y0 makes no sense in the context of a relative move. But the next movements are to extrude a prime like, which would require a relative move.

                            Phaedrux 1 Reply Last reply Reply Quote 0
                            • dc42
                              dc42 administrators last edited by

                              What firmware versions are your Duet WiFi and Duet maestro running?

                              Are there any error messages on the GCode Console when this happens?

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                              • Agniusm
                                Agniusm last edited by

                                Maestro on 2.02RC5. My duet wifi(eth now) runs 2.03 but it have never done that but start script is almost the same.
                                I have not noticed any errors in the gcode console but i will keep an eye.
                                It finishes mesh bed compensation, and then sort of glitches 1mm or so and stays at that last spot

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                                • Agniusm
                                  Agniusm last edited by Agniusm

                                  here is the video:
                                  https://youtu.be/Eaedp-ZMEvg
                                  I have updated to 2.03 and still same.

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                                  • Veti
                                    Veti last edited by

                                    you never answered Phaedrux post about switching to absolute positioning for those moves.

                                    Agniusm 1 Reply Last reply Reply Quote 0
                                    • Agniusm
                                      Agniusm @Veti last edited by Agniusm

                                      @veti I dont know why would it be different as my duet wifi works ok with the same script.
                                      P.S. OK. I have figured it out.
                                      I have placed my move to the fron of the bed before these:
                                      M104 S[first_layer_temperature] ; set extruder temp
                                      M109 S[first_layer_temperature] ; wait for extruder temp
                                      and now it works

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                                      • Agniusm
                                        Agniusm last edited by

                                        Case closed;

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                                        • Agniusm
                                          Agniusm last edited by

                                          Re-opened. Looks like it does it random. I don't know what is happening. Whenever i sliced with the new start script it went and did how it suppose to. Now prints finished and i started same file again and it again remained at the back of the bed and purged mid air.

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                                          • Veti
                                            Veti last edited by

                                            as Phaedrux has said multible times in this thread, you need to make sure that when the code is executed it needs to be in absolute positioning . so add the correct G90 and G91 commands to your code.

                                            Agniusm 1 Reply Last reply Reply Quote 0
                                            • Agniusm
                                              Agniusm @Veti last edited by

                                              @veti do i need to add it just for that move or the whole start script?

                                              deckingman 1 Reply Last reply Reply Quote 0
                                              • Veti
                                                Veti last edited by

                                                try with a G90 at the beginning

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                                                • deckingman
                                                  deckingman @Agniusm last edited by deckingman

                                                  @agniusm By way of explanation, a relative move such as G1 X10, Y10 will move the print head by 10mm positive in both the X and Y directions. Whereas in absolute mode, that same G1 X10 Y10 will move the print head to the position which is 10mm in both X and Y from the homed position (usually 0,0).

                                                  So for example if the print head started at X50 , Y60 then relative G1 X10 Y10 will move the print head another 10mm in each direction and it will end up at X60 Y70. But in absolute mode starting with the print head in that same position of X50 Y60 that same G1 X10 Y10 command will move the print to X10 Y10 so it will move minus 40mm in X and minus 50mm in Y.

                                                  In actual fact, all moves have to be relative to some point in space. So absolute moves mean go to an XY position relative to the homed position. Therefore it follows that if the homed position hasn't been established, then any absolute moves aren't going to work properly.

                                                  In summary, use relative to move by an amount, use absolute to move to a position (relative to the homed position).

                                                  Agniusm 1 Reply Last reply Reply Quote 2
                                                  • Phaedrux
                                                    Phaedrux Moderator @Phaedrux last edited by

                                                    @phaedrux said in Duet maestro and weirdness on start gcode:

                                                    @agniusm said in Duet maestro and weirdness on start gcode:

                                                    G1 Y0.0 F5000 ; go outside print area
                                                    G92 E0 ; reset extrusion distance
                                                    G1 X70.0 E9 F1000 ; intro line
                                                    G1 X140 E12.5 F1000 ; intro line

                                                    I say again, it looks like you're missing G90 and G91 commands here. G1 Y0 makes no sense in the context of a relative move. But the next movements are to extrude a prime like, which would require a relative move.

                                                    So the snippet above would become

                                                    G90 ; absolute positioning
                                                    G1 Y0 X0 F5000 ; go outside print area
                                                    G92 E0 ; reset extrusion distance
                                                    G91 ; relative positioning
                                                    G1 X70.0 E9  F1000 ; intro line
                                                    G1 X140 E12.5  F1000 ; intro line
                                                    
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                                                    • Agniusm
                                                      Agniusm @deckingman last edited by

                                                      @deckingman Thanks. Yes, i am familiar with what those command do and how they work.
                                                      Adding G90 at the begining of the move and G91 after seems to have solved the problem, at least on couple prints i did so far.
                                                      Thanks

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