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    Duet maestro and weirdness on start gcode

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    • Agniusmundefined
      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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      • Vetiundefined
        Veti
        last edited by

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

        Agniusmundefined 1 Reply Last reply Reply Quote 0
        • Agniusmundefined
          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.

          dc42undefined Phaedruxundefined 2 Replies Last reply Reply Quote 0
          • dc42undefined
            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?

            Duet WiFi hardware designer and firmware engineer
            Please do not ask me for Duet support via PM or email, use the forum
            http://www.escher3d.com, https://miscsolutions.wordpress.com

            Agniusmundefined 1 Reply Last reply Reply Quote 0
            • Agniusmundefined
              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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              • Phaedruxundefined
                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.

                Z-Bot CoreXY Build | Thingiverse Profile

                Phaedruxundefined 1 Reply Last reply Reply Quote 0
                • dc42undefined
                  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?

                  Duet WiFi hardware designer and firmware engineer
                  Please do not ask me for Duet support via PM or email, use the forum
                  http://www.escher3d.com, https://miscsolutions.wordpress.com

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                  • Agniusmundefined
                    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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                    • Agniusmundefined
                      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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                      • Vetiundefined
                        Veti
                        last edited by

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

                        Agniusmundefined 1 Reply Last reply Reply Quote 0
                        • Agniusmundefined
                          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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                          • Agniusmundefined
                            Agniusm
                            last edited by

                            Case closed;

                            1 Reply Last reply Reply Quote 0
                            • Agniusmundefined
                              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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                              • Vetiundefined
                                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.

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

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

                                  deckingmanundefined 1 Reply Last reply Reply Quote 0
                                  • Vetiundefined
                                    Veti
                                    last edited by

                                    try with a G90 at the beginning

                                    1 Reply Last reply Reply Quote 0
                                    • deckingmanundefined
                                      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).

                                      Ian
                                      https://somei3deas.wordpress.com/
                                      https://www.youtube.com/@deckingman

                                      Agniusmundefined 1 Reply Last reply Reply Quote 2
                                      • Phaedruxundefined
                                        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
                                        

                                        Z-Bot CoreXY Build | Thingiverse Profile

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                                        • Agniusmundefined
                                          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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