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    Hang printer - Print stops with mesh leveling

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    • 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

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      • 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

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              • 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

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                • 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?

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                  • 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

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                              • 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

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                                  • 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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                                    • Phaedruxundefined
                                      Phaedrux Moderator @Shinomori
                                      last edited by

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

                                      I've run into the limit of my knowledge.

                                      Mine too.

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

                                      Interesting test Tobben suggested on discord.

                                      Does anyone else on the discord server have a hand printer on Duet 3 running 3.3 that can confirm whether G29 works for them or not?

                                      Z-Bot CoreXY Build | Thingiverse Profile

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                                      • Shinomoriundefined
                                        Shinomori @Phaedrux
                                        last edited by

                                        @phaedrux I copied the basic delta config for motors and set home and tried G29 and it worked unless the M557 was too big then it threw the same errors. Converted back to HP config. Tried G1 movement commands in absolute mode well past the M557 limits and it was allowed and the printer moved to those locations. The G29 still threw errors for all points.

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

                                          @phaedrux I haven't seen another duet3 HP other than the V4 Tobben is working on but I asked to see if someone responds. Looking forward to what DC42 thinks. Hopefully the book above gives the clues needed. hehe Thanks for your help.

                                          dc42undefined 1 Reply Last reply Reply Quote 0
                                          • dc42undefined
                                            dc42 administrators @Shinomori
                                            last edited by

                                            @shinomori I've looked at the code and the limits that apply are those set by M208. So make sure that your limits are sufficient, for example M208 X-300:300 Y-300:300.

                                            I also notice that in your config.g file you do not hide the U axis. This may be because you need to move U (aka D in Hangprinter terminology) manually sometimes. However, it means that RRF will check that D is within limits too. So I suggest you hide the U axis using M584 P3 when you don't need to move it manually, in particular when running G29.

                                            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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