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    Resume print

    Scheduled Pinned Locked Moved Solved
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    • MikeSundefined
      MikeS
      last edited by

      @GT1Za first line is not the same...it has X0 Y0 which moves the head to pause position while lifting and is causing your problem. Add the line i told you at the beginning and it should first go 5mm above pause position and then move to where you hit pause. First thing i learn using duet is to give a read at the gcode documentation...it is really worth the time!

      GT1Zaundefined 1 Reply Last reply Reply Quote 0
      • GT1Zaundefined
        GT1Za @MikeS
        last edited by

        @MikeS ahh thanks, I didn't think the x0 y0 would make a difference considering x0 y0 is the front left of my bed and not the center.
        I'll give it a try and see.

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        • dc42undefined
          dc42 administrators
          last edited by

          I lift the head 5mm in the pause.g file after retracting and before moving to where I want the head while paused. While paused, it remains 5mm above the pause point. Then in resume.g I use G1 R1 X0 Y0 followed by G1 R1 X0 Y0 Z0.

          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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          • GT1Zaundefined
            GT1Za
            last edited by

            @dc42 would you mind copy and pasting your pause and resume codes?

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            • dc42undefined
              dc42 administrators @GT1Za
              last edited by dc42

              @GT1Za said in Resume print:

              @dc42 would you mind copy and pasting your pause and resume codes?

              ; Pause macro file
              if state.currentTool != -1
                M83					; relative extruder moves
                G1 E-4 F2500		; retract 4mm
              G91					; relative moves
              G1 Z5 F5000			; raise nozzle 5mm
              G90					; absolute moves
              G1 X0 Y85 F10000
              ;M106 S0
              
              ; Resume macro file
              G1 R1 X0 Y0 Z2 F5000	; move to 2mm above resume point
              G1 R1 X0 Y0 Z0		; lower nozzle to resume point
              if state.currentTool != -1
                M83			; relative extruder moves
                G1 E4 F2500		; undo the retraction
              

              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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              • GT1Zaundefined
                GT1Za
                last edited by GT1Za

                @dc42 I have tried to use your script but im still battling with the same issue.

                In short, whats happeing is that when I pause, the print head moves to the front right of the bed as it should. I can then do the filament change or whatever is required, but when I resume the print, the print head moves in a diagonal motion to where it left, but often it hasnt reached the required height before it starts passing over the model and knocks it off the bed.
                Is there a way to get the print head to only move to the Z height and not xy?
                Alternatively on the pause to remain at its current (or slightly raised height) rather than it lowering to the normal starting z position?

                For info there is the pause and resume:

                Pause:
                ; pause.g
                ; called when a print from SD card is paused
                ;
                ; generated by RepRapFirmware Configuration Tool v2.1.8 on Wed May 06 2020 11:04:16 GMT+0200 (South Africa Standard Time)
                M83 ; relative extruder moves
                G1 E-2 F3600 ; retract 2mm of filament
                G91 ; relative positioning
                G1 Z5 F360 ; lift Z by 5mm
                G90 ; absolute positioning
                G1 X0 Y0 F6000 ; go to X=0 Y=0

                Resume:
                ; resume.g
                ; called before a print from SD card is resumed
                ;
                ; generated by RepRapFirmware Configuration Tool v2.1.8 on Wed May 06 2020 11:04:16 GMT+0200 (South Africa Standard Time)
                G1 R1 X0 Y0 Z5 F6000 ; go to 5mm above position of the last print move
                G1 R1 X0 Y0 Z0 ; go back to the last print move
                M83 ; relative extruder moves
                G1 E2 F3600 ; extrude 2mm of filament

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                • Phaedruxundefined
                  Phaedrux Moderator
                  last edited by

                  Can you post your config.g? Do you have other tool offsets?

                  Z-Bot CoreXY Build | Thingiverse Profile

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                  • GT1Zaundefined
                    GT1Za @Phaedrux
                    last edited by

                    @Phaedrux here is the config. Left out the networking part

                    ; Drives
                    M569 P0 S0 ; physical drive 0 goes forwards
                    M569 P1 S1 ; physical drive 1 goes forwards
                    M569 P2 S1 ; physical drive 2 goes forwards
                    M569 P3 S1 ; physical drive 3 goes forwards
                    M584 X0 Y1 Z2:4 E3 ; two Z motors connected to driver outputs Z and E1
                    M671 X-20:220 Y0:0 S0.5 ; leadscrews at left (connected to Z) and right (connected to E1) of X axis
                    M208 X-5:205 Y0:200 ; X carriage moves from -5 to 205, Y bed goes from 0 to 200
                    M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
                    M92 X80.00 Y80.00 Z400.00 E408 ; set steps per mm
                    M566 X500.00 Y500.00 Z24.00 E300.00 ; set maximum instantaneous speed changes (mm/min)
                    M203 X12000.00 Y12000.00 Z300.00 E3600.00 ; set maximum speeds (mm/min)
                    M201 X500.00 Y500.00 Z100.00 E5000.00 ; set accelerations (mm/s^2)
                    M906 X800 Y800 Z900 E800 I30 ; set motor currents (mA) and motor idle factor in per cent
                    M84 S30 ; Set idle timeout

                    ; Axis Limits
                    M208 X0 Y-22.5 Z-2.5 S1 ; set axis minima
                    M208 X500 Y500 Z500 S0 ; set axis maxima

                    ; Endstops
                    M574 X1 Y1 S1 ; set active high endstops
                    M574 Z1 S2 ; set endstops controlled by probe

                    ; Z-Probe
                    M558 P9 H5 F120 T6000 A2 ; set Z probe type to bltouch and the dive height + speeds
                    G31 P500 X-30.8 Y0 Z2.55 ; set Z probe trigger value, offset and trigger height
                    M557 X15:445 Y15:445 S20 ; define mesh grid

                    ; Heaters
                    M305 P0 T100000 B4138 R2200 ; set thermistor + ADC parameters for heater 0
                    M143 H0 S120 ; set temperature limit for heater 0 to 120C
                    M305 P1 T100000 B4138 R2200 ; set thermistor + ADC parameters for heater 1
                    M143 H1 S280 ; set temperature limit for heater 1 to 280C

                    ; Fans
                    M106 P0 S1 I0 F500 H1 T30 ; set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned on
                    M106 P1 S1 I0 F500 H1 T45 ; set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on

                    ; 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

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                    • Phaedruxundefined
                      Phaedrux Moderator
                      last edited by

                      I don't see anything unusual in there, unless you've got something in the homing files or start gcode?

                      Z-Bot CoreXY Build | Thingiverse Profile

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                      • GT1Zaundefined
                        GT1Za
                        last edited by

                        @Phaedrux I really dont think its the start code haha... but for safety sake here it is:

                        G28
                        G92 E0 ;Reset Extruder
                        G1 Z2.0 F3000 ;Move Z Axis up
                        G1 X10.1 Y20 Z0.28 F5000.0 ;Move to start position
                        G1 X10.1 Y200.0 Z0.28 F1500.0 E15 ;Draw the first line
                        G1 X10.4 Y200.0 Z0.28 F5000.0 ;Move to side a little
                        G1 X10.4 Y20 Z0.28 F1500.0 E30 ;Draw the second line
                        G92 E0 ;Reset Extruder
                        G1 Z2.0 F3000 ;Move Z Axis up

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                        • GT1Zaundefined
                          GT1Za
                          last edited by GT1Za

                          S5 V2.mp4

                          @Phaedrux @dc42
                          Sorry guys I thought maybe a video to show this is the easiest.

                          As you can see, when you hit resume, the nozzle drops from the correct height to resume, to x0 y0 z0 and then starts moving to go back to the resume point. This almost always knocks the print off the bed... How do I correct that?

                          G1 R1 X0 Y0 Z5 F6000 ; go to 5mm above position of the last print move
                          G1 R1 X0 Y0 Z0 ; go back to the last print move
                          M83 ; relative extruder moves
                          G1 E2 F3600 ; extrude 2mm of filament

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                          • Phaedruxundefined
                            Phaedrux Moderator @GT1Za
                            last edited by

                            @GT1Za Is the video supposed to be only 3 seconds long? Though it looks like it's moving at a diagonal.

                            Again, I ask what firmware version are you using? Send M115.

                            Z-Bot CoreXY Build | Thingiverse Profile

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                            • GT1Zaundefined
                              GT1Za @Phaedrux
                              last edited by

                              @Phaedrux sorry I missed you asking for the firmware.
                              The video was only 3 seconds because the forum will only allow a 4mb upload.

                              Firmware is 2.02RC5

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                              • Phaedruxundefined
                                Phaedrux Moderator @GT1Za
                                last edited by

                                @GT1Za said in Resume print:

                                Firmware is 2.02RC5

                                I would suggest updating your firmware first. There were some issues in that time frame for resuming.

                                https://github.com/Duet3D/RepRapFirmware/releases/download/2.05.1/Duet2Firmware-2.05.1.zip

                                Download this zip file, and in DWC, upload it to the system tab. Don't extract it first.

                                Z-Bot CoreXY Build | Thingiverse Profile

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                                • GT1Zaundefined
                                  GT1Za @Phaedrux
                                  last edited by GT1Za

                                  @Phaedrux the reason I havent done this is because, well as you can see im not the greatest at firmware. My understanding is that most of the code for the config etc has changed? If I upload this wont it break my existing?

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                                  • Phaedruxundefined
                                    Phaedrux Moderator
                                    last edited by

                                    No, 2.05 won't require changes to your config. RRF3 would require changes.

                                    Z-Bot CoreXY Build | Thingiverse Profile

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                                    • GT1Zaundefined
                                      GT1Za @Phaedrux
                                      last edited by

                                      @Phaedrux Firmware Version: 2.05.1 (2020-02-09b1)

                                      haha fingers crossed! Thanks for the help, Ill report back as soon as I get a chance to test

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                                      • GT1Zaundefined
                                        GT1Za @Phaedrux
                                        last edited by

                                        @Phaedrux thanks I can confirm updating the firmware fixed the issue

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