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    printing issues with model

    Tuning and tweaking
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    • aprz
      aprz last edited by

      So im trying to improve this model and i've adjusted the temp, speed, acceleration, jerk, and flow as well as the retraction with only a small improvement. Every time its gets to the middle of the print there are bad corners and sometimes blobs form. I'm hoping someone here can help me figure out why it looks the way it does and what should i adjust. using duet 3+pi and firmware 3.2

      ; General preferences
      G90                                                     ; send absolute coordinates...
      M83                                                     ; ...but relative extruder moves
      M550 P"Duet 3"                                          ; set printer name
       
      ; Drives
      M569 P0.1 S1                                            ; physical drive 0.1 goes forwards
      M569 P0.0 S0                                            ; physical drive 0.0 goes forwards
      M569 P0.2 S0                                            ; physical drive 0.2 goes forwards
      M569 P0.3 S0                                            ; physical drive 0.3 goes forwards
      M569 P0.4 S0                                            ; physical drive 0.3 goes forwards
      M569 P20.0 S1                                            ; physical drive 0.3 goes forwards
      M584 X0.1 Y0:4 Z2:3 E20.0                                ; set drive mapping
      M350 X16 Y16 Z16 E16 I1                                  ; configure microstepping with interpolation
      M92 X3200.00 Y3200.00 Z3200.00 E873.00                  ; set steps per mm
      M566 X400.00 Y400.00 Z5.00 E1000.00                      ; set maximum instantaneous speed changes (mm/min)
      M203 X1500.00 Y1500.00 Z70.00 E5000.00                   ; set maximum speeds (mm/min)
      M201 X560.00 Y560.00 Z5.00 E5000.00                      ; set accelerations (mm/s^2)
      M906 X3900 Y3900 Z1800 E1300 I30                         ; set motor currents (mA) and motor idle factor in per cent
      M84 S30                                                  ; Set idle timeout
       
      ; Axis Limits
      M208 X0 Y0 Z0 S1                                        ; s9t axis minima
      M208 X890 Y925 Z780 S0                                  ; set axis maxima
       
      ; Endstops
      M574 X1 S1 P"io0.in"                                   ; configure active-high endstop for low end on X via pin !io8.in
      M574 Y1 S1 P"io1.in"                                   ; configure active-high endstop for low end on Y via pin !io2.in
      M574 Z0 S1                                             ; configure Z-probe endstop for low end on Z
       
       
      ; Z-Probe
      M558 P8 C"20.io0.in" H5 F90 T100000                       ; set Z probe type to unmodulated and the dive height + speeds
      G31 P500 X0 Y0 Z0.1                                   ; set Z probe trigger value, offset and trigger height
      M557 X0:885 Y0:985 S80                                ; define mesh grid
       
      ; Heaters
      M308 S0 P"20.temp0" Y"pt1000"                  ; configure sensor 0 as thermistor on pin 20.temp0
      M950 H0 C"20.out0" T0                                    ; create nozzle heater output on 20.out0 and map it to sensor 0
      M307 H0 B0 S1.00                                        ; disable bang-bang mode for heater  and set PWM limit
      ;M308 S1 P"temp0" Y"thermistor" T100000 B3950            ; configure sensor 1 as thermistor on pin temp0
      ;M950 H1 C"out0" T1                                      ; create bed heater output on out0 and map it to sensor 1
      ;M307 H1 B1 S1.00                                        ; enable bang-bang mode for the bed heater and set PWM limit
      ;M140 H1                                                 ; map heated bed to heater 1
      ;M143 H1 S280                                            ; set temperature limit for heater 1 to 280C
       
      ; Fans
      M950 F0 C"out8" Q500                                    ; create fan 0 on pin out8 and set its frequency
      M106 P0 S0 H0 T45                                       ; set fan 0 value. Thermostatic control is turned on
      M950 F1 C"out9" Q500                                    ; create fan 1 on pin out9 and set its frequency
      M106 P1 S0 H0 T45                                       ; set fan 1 value. Thermostatic control is turned on
       
      ; Tools
      M563 P0 S"Titan Aqua 1.75" D0 H0 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
       
       
      

      image_50417153.JPG image_50421505.JPG image_50421505 (1).JPG

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      • Phaedrux
        Phaedrux Moderator last edited by

        M92 X3200.00 Y3200.00 Z3200.00 E873.00 ; set steps per mm

        Those are some high steps per mm. What kind of a printer is this? Provide some more details please?

        Results of M122? And M122 B1 etc if you have expansions.
        Also send M98 P"config.g" to check for any syntax errors.

        Have the heaters been PID tuned?
        Extruder calibrated?

        Z-Bot CoreXY Build | Thingiverse Profile

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        • aprz
          aprz last edited by aprz

          Its a cartesian printer its about 800mmx800mm. it has a nema 23 0.9 degree for the all axis because its all metal and i wasn't able to get it to move faster than 20mm/s with nema 17 which were 1.8 degree. I'm not sure if the steps per mm/ are correct but I used prusa steps per mm calculator and that's what got. as for the heaters, i haven't done a PID tune yet. I did calibrate the extruder.

          2021-01-22-142530_1600x1200_scrot.png

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          • Phaedrux
            Phaedrux Moderator last edited by

            The unterminated string error is because you're missing the closing quote "

            PID tuning might help with the banding actually. thermal expansion of the bed or heater flex could be part of it. Same for the hotend.

            Is it a lead screw based axis?

            Z-Bot CoreXY Build | Thingiverse Profile

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            • aprz
              aprz last edited by

              yes its dual lead screw for y-axis and single lead screw for the x-axis. im using two motors for the y-axis and single motor for the x-axis. as for the bed heater, i haven't connected it so that's not working now. what do you mean by heater flex?

              DIY-O-Sphere 1 Reply Last reply Reply Quote 0
              • DIY-O-Sphere
                DIY-O-Sphere @aprz last edited by

                @1997alex
                Why is H1 commented out?

                (UTC+1)

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

                  Basically bang-bang can make it move up and down a small amount.

                  Z-Bot CoreXY Build | Thingiverse Profile

                  aprz 1 Reply Last reply Reply Quote 0
                  • Phaedrux
                    Phaedrux Moderator @DIY-O-Sphere last edited by

                    @DIY-O-Sphere said in printing issues with model:

                    @1997alex
                    Why is H1 commented out?

                    it's the bed, but not connected 😉

                    Z-Bot CoreXY Build | Thingiverse Profile

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                    • aprz
                      aprz @Phaedrux last edited by

                      @Phaedrux oh i see, so should i leave it as bang or change it to PID.

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                      • Phaedrux
                        Phaedrux Moderator last edited by

                        Well once you PID tune it and save the results it will use PID once those results are loaded again. So you don't have to change anything in config.g

                        M303 T0 S200 will tune the hotend associated with tool0

                        Normally the bed is heater0 and tools come after.

                        Z-Bot CoreXY Build | Thingiverse Profile

                        aprz 1 Reply Last reply Reply Quote 0
                        • aprz
                          aprz @Phaedrux last edited by

                          @Phaedrux ok thanks ill give it try and see if that helps.

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                          • aprz
                            aprz last edited by

                            I tried auto tuning and it gives me an Error:M303: remote auto tuning not implemented

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                            • Phaedrux
                              Phaedrux Moderator last edited by

                              Ah yes you're using a tool board. Can't auto tune yet. If you can connect to the main board temporarily you can auto tune.

                              Z-Bot CoreXY Build | Thingiverse Profile

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                              • Veti
                                Veti last edited by

                                @1997alex said in printing issues with model:

                                800mmx800mm

                                thats a big printer. is it bowden or direct drive?

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

                                  @Veti its direct drive and going to enclose it to keep the temp consistent.

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                                  • dc42
                                    dc42 administrators last edited by dc42

                                    We recently identified some issues in synchronizing moment over CAN that affect some prints, and fixed them in the RRF 3.3beta. As you are using a tool board, I suggest you try the beta.

                                    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

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

                                      @dc42 ok will give it try, thanks for the help.

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