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    Hang printer - Print stops with mesh leveling

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    • Shinomoriundefined
      Shinomori @Phaedrux
      last edited by

      @phaedrux
      Sounds good. Thanks. I'll get a long network cable next time I come down here. So if we need to go direct I'll be able to. Look forward to seeing what DC42 thinks. Thanks again for the help.

      fcwiltundefined 1 Reply Last reply Reply Quote 0
      • fcwiltundefined
        fcwilt @Shinomori
        last edited by

        @shinomori

        Hi,

        Just out of curiosity what is the "raison d'etre" for a hang printer?

        Thanks.

        Frederick

        Printers: A FT-5 with the 713 upgrade bits, a custom MarkForged style, a small Utilmaker style, a small CoreXY from kit and a E3D MS/TC setup. Various hotends. Using Duets (2 and 3) running 3.4.6

        Shinomoriundefined 1 Reply Last reply Reply Quote 0
        • Shinomoriundefined
          Shinomori @fcwilt
          last edited by

          @fcwilt We are working with a group that is wanting to print building sized objects with a custom material, but the printer needs to be easy to transport. I know of no other printer that can do such a large print volume with so few materials for the printer itself. So we proposed a hangprinter This is the first phase proof of concept. If it works we'll be moving to a v4 hangprinter with a pellet extruder. This is why the mesh level needs to be working. We are currently trying to print on 4x8 sheets and will eventually be printing straight to the ground.

          fcwiltundefined 1 Reply Last reply Reply Quote 1
          • fcwiltundefined
            fcwilt @Shinomori
            last edited by

            @shinomori

            Interesting.

            Hope it works out.

            Frederick

            Printers: A FT-5 with the 713 upgrade bits, a custom MarkForged style, a small Utilmaker style, a small CoreXY from kit and a E3D MS/TC setup. Various hotends. Using Duets (2 and 3) running 3.4.6

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

              @shinomori said in Hang printer - Print stops with mesh leveling:

              M558 P0 H5 F120 T6000

              In case you're still at the printer to test.. Would you be able to try increasing the dive height? M558 H5 to H15? I just noticed that your M208 Z minima is -5mm which is the same as your dive height.

              Z-Bot CoreXY Build | Thingiverse Profile

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

                @phaedrux
                We'll probably be over later this week to work on it some more. I'll try setting the dive height larger than the z minima. And the other way around. It is interesting that probing one point manually currently works. Used to establish Z0 to before trying to create a mesh level. It only fails when trying to do the mesh. So it seems there is something odd there. It still does load the old mesh file from the last time I ran it before doing all the updates.

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                • Phaedruxundefined
                  Phaedrux Moderator
                  last edited by

                  Can you post the heightmap.csv file from the previously saved G29 run?

                  Z-Bot CoreXY Build | Thingiverse Profile

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                  • Shinomoriundefined
                    Shinomori @Phaedrux
                    last edited by

                    @phaedrux
                    Ok I tried:
                    M558 P0 H15 F120 T6000
                    M208 Z-5 S1

                    and:
                    M558 P0 H5 F120 T6000
                    M208 Z-15 S1

                    In both cases:
                    I ran G28 X0 Y0 Z0 E0 U0 then G30. The manual probing screen came up but the print head didn't move after setting height it moved up the dive height in M558. The running G29 this came up:

                    7/12/2021, 12:44:49 PM Warning: Skipping grid point X=200.0, Y=200.0 because Z probe cannot reach it
                    7/12/2021, 12:44:49 PM Warning: Skipping grid point X=0.0, Y=200.0 because Z probe cannot reach it
                    7/12/2021, 12:44:49 PM Warning: Skipping grid point X=-200.0, Y=200.0 because Z probe cannot reach it
                    7/12/2021, 12:44:49 PM Warning: Skipping grid point X=-200.0, Y=0.0 because Z probe cannot reach it
                    7/12/2021, 12:44:49 PM Warning: Skipping grid point X=0.0, Y=0.0 because Z probe cannot reach it
                    7/12/2021, 12:44:49 PM Warning: Skipping grid point X=200.0, Y=0.0 because Z probe cannot reach it
                    7/12/2021, 12:44:49 PM Warning: Skipping grid point X=200.0, Y=-200.0 because Z probe cannot reach it
                    7/12/2021, 12:44:49 PM Warning: Skipping grid point X=0.0, Y=-200.0 because Z probe cannot reach it
                    7/12/2021, 12:44:49 PM Warning: Skipping grid point X=-200.0, Y=-200.0 because Z probe cannot reach it
                    7/12/2021, 12:44:49 PM G29
                    Error: Too few points probed

                    Here is the config:
                    ; General preferences
                    G91 ; send relative coordinates...
                    M83 ; ...but relative extruder moves
                    M550 P"duet3" ; set printer name

                    ; Drives
                    M569 P0.0 S0 ; physical drive 0.0 goes forwards
                    M569 P0.1 S1 ; physical drive 0.1 goes forwards
                    M569 P0.2 S0 ; physical drive 0.2 goes forwards
                    M569 P0.3 S1 ; physical drive 0.3 goes forwards
                    M569 P0.4 S0 ; physical drive 0.4 goes forwards
                    M584 X0.0 Y0.1 Z0.2 E0.3 U0.4 ; set drive mapping
                    M669 K6 A0.0:-2265.0:0.0 B1725.0:1100.0:0.0 C-1740.0:1120.0:0.0 D0.0:0.0:2666.0 P1500.0
                    M350 X16 Y16 Z16 E16 U16 I1 ; configure microstepping with interpolation
                    M92 X92.90 Y92.90 Z92.90 E396.00 U93.00 ; set steps per mm
                    M566 X900.00 Y900.00 Z900.00 E120.00 U900.00 ; set maximum instantaneous speed changes (mm/min)
                    M203 X6000.00 Y6000.00 Z6000.00 E1200.00 U6000.00 ; set maximum speeds (mm/min)
                    M201 X500.00 Y500.00 Z500.00 E250.00 U500.00 ; set accelerations (mm/s^2)
                    M906 X1000 Y1000 Z1000 E800 U1000 I60 ; set motor currents (mA) and motor idle factor in per cent
                    M84 S30 ; Set idle timeout

                    ; Axis Limits
                    M208 Z-15 S1 ; set axis minima
                    M208 Z1500 S0 ; set axis maxima

                    ; Endstops
                    ; WARNING: No endstops configured

                    ; Z-Probe
                    M558 P0 H5 F120 T6000; disable Z probe but set dive height, probe speed and travel speed
                    G31 P500 X0 Y0 Z0
                    M557 R400 S200
                    ;M557 X-100:100 Y-100:100 S100 ; define mesh grid

                    ; Heaters
                    M308 S0 P"temp1" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin temp1
                    M950 H0 C"out1" T0 ; create nozzle heater output on out1 and map it to sensor 0
                    M143 H0 S270 ; set temperature limit for heater 0 to 270C
                    M307 H0 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
                    M140 H-1

                    ; Fans
                    M950 F0 C"out7" Q500 ; create fan 0 on pin out7 and set its frequency
                    M106 P0 S0 H0 ; set fan 0 value. Thermostatic control is turned off
                    M950 F1 C"out8" Q500 ; create fan 1 on pin out8 and set its frequency
                    M106 P1 S0 H0 ; set fan 1 value. Thermostatic control is turned off

                    ; Tools
                    M563 P0 S"Extruder" D0.3 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
                    M564 S0 H0 ;allow move without homing
                    ; Miscellaneous
                    M501 ; load saved parameters from non-volatile memory
                    T0 ; select first tool

                    Shinomoriundefined Phaedruxundefined 2 Replies Last reply Reply Quote 0
                    • Shinomoriundefined
                      Shinomori @Shinomori
                      last edited by

                      @shinomori
                      Here is the height map from the old config.

                      heightmap.csv

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

                        @shinomori said in Hang printer - Print stops with mesh leveling:

                        M558 P0 H15 F120 T6000
                        M208 Z-5 S1

                        This would be preferable.

                        @shinomori said in Hang printer - Print stops with mesh leveling:

                        then G30. The manual probing screen came up but the print head didn't move after setting height it moved up the dive height in M558.

                        So when G30 is sent with M558 P0 set, there should be a prompt pop up to allow you to jog the Z axis up and down. Did that happen? Are you saying the movement buttons did not respond?

                        Z-Bot CoreXY Build | Thingiverse Profile

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

                          @phaedrux
                          When sending the G30 command the the print head doesn't move and the ui for moving the axis comes up. The buttons work to move the print head. I use those buttons to set the height and hit ok. Then the head moves up to the dive height.

                          When sending G29 there is no motion only errors.

                          When it was working it would move to the location for each probe at z=H parameter in M558.

                          I wonder if the lack of motion at the start of G30 is an indication of what is causing the G29 to fail?

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

                            @shinomori said in Hang printer - Print stops with mesh leveling:

                            When sending the G30 command the the print head doesn't move and the ui for moving the axis comes up. The buttons work to move the print head. I use those buttons to set the height and hit ok. Then the head moves up to the dive height.

                            That's exactly how M558 P0 and manual probing works. You have to manually move the nozzle to touch the bed. So G30 sounds like it's working.

                            Once you've done that G30 and set the Z0 position are you able to jog the print head around manually?

                            With M558 P0 set, using G29 should indeed prompt you to jog down at each point.

                            And just to confirm, that's with this set?

                            M558 P0 H15 F120 T6000
                            M208 Z-5 S1

                            Z-Bot CoreXY Build | Thingiverse Profile

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                            • Shinomoriundefined
                              Shinomori @Phaedrux
                              last edited by

                              @phaedrux

                              It moves around fine after g30. I can move it in a very large space and when I send it back to home it is right to the correct spot.

                              The behavior was the same with:
                              M558 P0 H15 F120 T6000
                              M208 Z-5 S1
                              and:
                              M558 P0 H5 F120 T6000
                              M208 Z-15 S1

                              Tried both.

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                              • Phaedruxundefined
                                Phaedrux Moderator
                                last edited by

                                Ok, so G30 is working, but G29 still complains that it can't reach all the points.

                                At this point we don't know if it's a problem with the hang printer kinematic, the SBC DSF implementation, or a firmware problem, or some combination.

                                Far as I know, you're the first one trying this.

                                Things to test to narrow it down would be to try testing in standalone mode without the Pi as we discussed before. Though this would require running an ethernet cable up to the Duet.

                                Z-Bot CoreXY Build | Thingiverse Profile

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                                • Shinomoriundefined
                                  Shinomori @Phaedrux
                                  last edited by

                                  @phaedrux Was in the area and stopped by real quick. Tried running a G90 or G91 right after establishing the home. Tried this with dive bigger than minima and smaller and with the Z minima set to 0. All cases the G30 worked but the G29 still did not.

                                  Next step is to connect direct to duet with cable.

                                  The dive is currently set slightly larger than the Z minima. Here is the current config.

                                  ; General preferences
                                  G91 ; send relative coordinates...
                                  M83 ; ...but relative extruder moves
                                  M550 P"duet3" ; set printer name

                                  ; Drives
                                  M569 P0.0 S0 ; physical drive 0.0 goes forwards
                                  M569 P0.1 S1 ; physical drive 0.1 goes forwards
                                  M569 P0.2 S0 ; physical drive 0.2 goes forwards
                                  M569 P0.3 S1 ; physical drive 0.3 goes forwards
                                  M569 P0.4 S0 ; physical drive 0.4 goes forwards
                                  M584 X0.0 Y0.1 Z0.2 E0.3 U0.4 ; set drive mapping
                                  M669 K6 A0.0:-2265.0:0.0 B1725.0:1100.0:0.0 C-1740.0:1120.0:0.0 D0.0:0.0:2666.0 P1500.0
                                  M350 X16 Y16 Z16 E16 U16 I1 ; configure microstepping with interpolation
                                  M92 X92.90 Y92.90 Z92.90 E396.00 U93.00 ; set steps per mm
                                  M566 X900.00 Y900.00 Z900.00 E120.00 U900.00 ; set maximum instantaneous speed changes (mm/min)
                                  M203 X6000.00 Y6000.00 Z6000.00 E1200.00 U6000.00 ; set maximum speeds (mm/min)
                                  M201 X500.00 Y500.00 Z500.00 E250.00 U500.00 ; set accelerations (mm/s^2)
                                  M906 X1000 Y1000 Z1000 E800 U1000 I60 ; set motor currents (mA) and motor idle factor in per cent
                                  M84 S30 ; Set idle timeout

                                  ; Axis Limits
                                  M208 Z-5 S1 ; set axis minima
                                  M208 Z1500 S0 ; set axis maxima

                                  ; Endstops
                                  ; WARNING: No endstops configured

                                  ; Z-Probe
                                  M558 P0 H6 F120 T6000; disable Z probe but set dive height, probe speed and travel speed
                                  G31 P500 X0 Y0 Z0
                                  M557 R400 S200
                                  ;M557 X-100:100 Y-100:100 S100 ; define mesh grid

                                  ; Heaters
                                  M308 S0 P"temp1" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin temp1
                                  M950 H0 C"out1" T0 ; create nozzle heater output on out1 and map it to sensor 0
                                  M143 H0 S270 ; set temperature limit for heater 0 to 270C
                                  M307 H0 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
                                  M140 H-1

                                  ; Fans
                                  M950 F0 C"out7" Q500 ; create fan 0 on pin out7 and set its frequency
                                  M106 P0 S0 H0 ; set fan 0 value. Thermostatic control is turned off
                                  M950 F1 C"out8" Q500 ; create fan 1 on pin out8 and set its frequency
                                  M106 P1 S0 H0 ; set fan 1 value. Thermostatic control is turned off

                                  ; Tools
                                  M563 P0 S"Extruder" D0.3 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
                                  M564 S0 H0 ;allow move without homing
                                  ; Miscellaneous
                                  M501 ; load saved parameters from non-volatile memory
                                  T0 ; select first tool

                                  Shinomoriundefined 1 Reply Last reply Reply Quote 1
                                  • Shinomoriundefined
                                    Shinomori @Shinomori
                                    last edited by

                                    @shinomori
                                    Ok connected direct to duet. Pi is unplugged from it.

                                    Connected to it.
                                    Used G1 S2 commands to tighten individual axis to get to home location.
                                    Sent
                                    G92 X0 Y0 Z0 E0
                                    G90
                                    G30

                                    Manual probe worked.
                                    Moved head back to 0,0,0 with ui buttons.
                                    Sent G29

                                    This error:
                                    g29
                                    Warning: Skipping grid point X=-200.0, Y=-200.0 because Z probe cannot reach it
                                    Warning: Skipping grid point X=0.0, Y=-200.0 because Z probe cannot reach it
                                    Warning: Skipping grid point X=200.0, Y=-200.0 because Z probe cannot reach it
                                    Warning: Skipping grid point X=200.0, Y=0.0 because Z probe cannot reach it
                                    Warning: Skipping grid point X=0.0, Y=0.0 because Z probe cannot reach it
                                    Warning: Skipping grid point X=-200.0, Y=0.0 because Z probe cannot reach it
                                    Warning: Skipping grid point X=-200.0, Y=200.0 because Z probe cannot reach it
                                    Warning: Skipping grid point X=0.0, Y=200.0 because Z probe cannot reach it
                                    Warning: Skipping grid point X=200.0, Y=200.0 because Z probe cannot reach it
                                    Error: Too few points probed

                                    M98 P"config.g"
                                    HTTP is enabled on port 80
                                    FTP is disabled
                                    TELNET is disabled

                                    M115
                                    FIRMWARE_NAME: RepRapFirmware for Duet 3 MB6HC FIRMWARE_VERSION: 3.3 ELECTRONICS: Duet 3 MB6HC v0.6 or 1.0 FIRMWARE_DATE: 2021-06-15 21:45:56

                                    Config.g:
                                    ; General preferences
                                    G91 ; send relative coordinates...
                                    M83 ; ...but relative extruder moves
                                    M550 P"Hangprinter" ; set printer name

                                    ; Network
                                    M552 P192.168.2.1 S1 ; enable network and acquire dynamic address via DHCP
                                    M553 P255.255.255.0
                                    M586 P0 S1 ; enable HTTP
                                    M586 P1 S0 ; disable FTP
                                    M586 P2 S0 ; disable Telnet

                                    ; Drives
                                    M569 P0.0 S0 ; physical drive 0.0 goes forwards
                                    M569 P0.1 S1 ; physical drive 0.1 goes forwards
                                    M569 P0.2 S0 ; physical drive 0.2 goes forwards
                                    M569 P0.3 S1 ; physical drive 0.3 goes forwards
                                    M569 P0.4 S0 ; physical drive 0.4 goes forwards
                                    M584 X0.0 Y0.1 Z0.2 E0.3 U0.4 ; set drive mapping
                                    M669 K6 A0.0:-2265.0:0.0 B1725.0:1100.0:0.0 C-1740.0:1120.0:0.0 D0.0:0.0:2666.0 P1500.0
                                    M350 X16 Y16 Z16 E16 U16 I1 ; configure microstepping with interpolation
                                    M92 X92.90 Y92.90 Z92.90 E396.00 U93.00 ; set steps per mm
                                    M566 X900.00 Y900.00 Z900.00 E120.00 U900.00 ; set maximum instantaneous speed changes (mm/min)
                                    M203 X6000.00 Y6000.00 Z6000.00 E1200.00 U6000.00 ; set maximum speeds (mm/min)
                                    M201 X500.00 Y500.00 Z500.00 E250.00 U500.00 ; set accelerations (mm/s^2)
                                    M906 X1000 Y1000 Z1000 E800 U1000 I60 ; set motor currents (mA) and motor idle factor in per cent
                                    M84 S30 ; Set idle timeout

                                    ; Axis Limits
                                    M208 Z-5 S1 ; set axis minima
                                    M208 Z1500 S0 ; set axis maxima

                                    ; Endstops
                                    ; WARNING: No endstops configured

                                    ; Z-Probe
                                    M558 P0 H6 F120 T6000; disable Z probe but set dive height, probe speed and travel speed
                                    G31 P500 X0 Y0 Z0
                                    M557 R400 S200
                                    ;M557 X-100:100 Y-100:100 S100 ; define mesh grid

                                    ; Heaters
                                    M308 S0 P"temp1" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin temp1
                                    M950 H0 C"out1" T0 ; create nozzle heater output on out1 and map it to sensor 0
                                    M143 H0 S270 ; set temperature limit for heater 0 to 270C
                                    M307 H0 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
                                    M140 H-1

                                    ; Fans
                                    M950 F0 C"out7" Q500 ; create fan 0 on pin out7 and set its frequency
                                    M106 P0 S0 H0 ; set fan 0 value. Thermostatic control is turned off
                                    M950 F1 C"out8" Q500 ; create fan 1 on pin out8 and set its frequency
                                    M106 P1 S0 H0 ; set fan 1 value. Thermostatic control is turned off

                                    ; Tools
                                    M563 P0 S"Extruder" D0.3 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
                                    M564 S0 H0 ;allow move without homing
                                    ; Miscellaneous
                                    M501 ; load saved parameters from non-volatile memory
                                    T0 ; select first tool

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                                    • Phaedruxundefined
                                      Phaedrux Moderator
                                      last edited by

                                      Can you try with a different M557 command?

                                      Try M557 R200 S50

                                      Z-Bot CoreXY Build | Thingiverse Profile

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

                                        @phaedrux
                                        That one still says it can't reach the points with same procedure as before. Just many more points.

                                        g29
                                        Warning: Skipping grid point X=-100.0, Y=-150.0 because Z probe cannot reach it
                                        ...
                                        and so on.

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                                        • Phaedruxundefined
                                          Phaedrux Moderator
                                          last edited by

                                          Thanks for testing. At this point we will have to wait for DC42 to return from vacation to be able to investigate further.

                                          Z-Bot CoreXY Build | Thingiverse Profile

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

                                            @phaedrux Thanks for feedback. Sorry for being a pain with this. I've run into the limit of my knowledge.

                                            Interesting test Tobben suggested on discord. I set the home position around z150 and sent a g1 z-100 command in absolute mode. It allowed it. The lines didn't maintain tension which is not too surprising asking for something so far out of norm. But there was no error. Hopefully that helps with diagnosis.

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