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    HELP WITH HEIGHT MAP HAS SUBSTANTIAL Z OFFSET WARNING

    Scheduled Pinned Locked Moved
    Tuning and tweaking
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    • Jaw8850undefined
      Jaw8850
      last edited by

      @Veti
      homeall.g
      homez.g
      Mesh Bed Leveling update.txt

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      • Vetiundefined
        Veti
        last edited by

        i would recommend you remove G29 S1 ; load heightmap
        from the homing.

        Jaw8850undefined 1 Reply Last reply Reply Quote 0
        • Jaw8850undefined
          Jaw8850 @Veti
          last edited by

          @Veti

          I'm still confused on the Thermistor settings

          here is my Bed Thermistor (E3D mains powered heat bed with E3D thermistor (B4725 from E3D documentation)

          M308 S0 P"bedtemp" Y"thermistor" T100000 B4725 ; configure sensor 0 as thermistor on pin bedtemp

          M950 H0 C"bedheat" Q10 T0 ; create bed heater output on bedheat and map it to sensor 0

          M307 H0 R1.115 C329.1 D4.73 S1.00 V24.2 ; disable bang-bang mode for the bed heater and set PWM limit

          and my E3D Hotend
          M308 S1 P"e0temp" Y"thermistor" T100000 B4725 ; configure sensor 1 as thermistor on pin e0temp
          M950 H1 C"e0heat" T1 ; create nozzle heater output on e0heat and map it to sensor 1
          M307 H1 R1.415 C284.6 D6.03 S1.00 V24.2 ; disable bang-bang mode for heater and set PWM limit

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          • Vetiundefined
            Veti
            last edited by

            @Jaw8850 said in HELP WITH HEIGHT MAP HAS SUBSTANTIAL Z OFFSET WARNING:

            here is my Bed Thermistor (E3D mains powered heat bed with E3D thermistor (B4725 from E3D documentation)

            can you link that, because its wrong. its missing the C parameter

            see
            https://duet3d.dozuki.com/Wiki/Connecting_thermistors_or_PT1000_temperature_sensors#Section_Thermistor_parameters

            Jaw8850undefined 1 Reply Last reply Reply Quote 0
            • Jaw8850undefined
              Jaw8850 @Veti
              last edited by

              @Veti here is link to Wiki for Duet (I'm running Duet 2 Ethernet board) says Duet 3 needs C but Duet 2 doesnt?

              https://duet3d.dozuki.com/Wiki/Connecting_thermistors_or_PT1000_temperature_sensors
              ![edbe464d-5f3b-4a9f-a04d-de6bcec8ed4c-image.png]

              (/assets/uploads/files/1610138829376-edbe464d-5f3b-4a9f-a04d-de6bcec8ed4c-image.png)
              Thermistor Settings.PNG

              Vetiundefined 1 Reply Last reply Reply Quote 0
              • Vetiundefined
                Veti @Jaw8850
                last edited by

                @Jaw8850 said in HELP WITH HEIGHT MAP HAS SUBSTANTIAL Z OFFSET WARNING:

                here is link to Wiki for Duet (I'm running Duet 2 Ethernet board) says Duet 3 needs C but Duet 2 doesnt?

                it doesnt say that at all.
                the duet 2 example is for a completely different thermistor.

                Jaw8850undefined 1 Reply Last reply Reply Quote 0
                • Jaw8850undefined
                  Jaw8850 @Veti
                  last edited by

                  @Veti
                  I see it now. I used the configurator then did PID and thought I was good. How does this look?

                  ; Heaters
                  M308 S0 P"bedtemp" Y"thermistor" T100000 B4725 C7.060000e-8 ; configure sensor 0 as thermistor on pin bedtemp
                  M950 H0 C"bedheat" Q10 T0 ; create bed heater output on bedheat and map it to sensor 0
                  M307 H0 R1.115 C329.1 D4.73 S1.00 V24.2 ; disable bang-bang mode for the bed heater and set PWM limit
                  M140 H0 ; map heated bed to heater 0
                  M143 H0 S200 ; set temperature limit for heater 0 to 200C
                  M308 S1 P"e0temp" Y"thermistor" T100000 B4725 C7.060000e-8 ; configure sensor 1 as thermistor on pin e0temp
                  M950 H1 C"e0heat" T1 ; create nozzle heater output on e0heat and map it to sensor 1
                  M307 H1 R1.415 C284.6 D6.03 S1.00 V24.2 ; disable bang-bang mode for heater and set PWM limit
                  M143 H1 S300 ; set temperature limit for heater 1 to 300C

                  M570 S360 ; Heater fault detections allow 1 minute

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                  • Vetiundefined
                    Veti
                    last edited by

                    dont forget to pid tune again. because you were operating at the wrong temperature

                    Jaw8850undefined 1 Reply Last reply Reply Quote 0
                    • Jaw8850undefined
                      Jaw8850 @Veti
                      last edited by

                      @Veti
                      I will definitely do that. I'm just fighting this homing mess. G28 Z throws an error and says insufficient axes homed. this is after I did G28 Y and G28 X it won't let me use G28 Z

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                      • Vetiundefined
                        Veti
                        last edited by

                        thats because you modified the homez and removed the H2 part

                        Jaw8850undefined 1 Reply Last reply Reply Quote 0
                        • Jaw8850undefined
                          Jaw8850 @Veti
                          last edited by

                          @Veti
                          Thank You!!!!!!!!! I truly appreciate your help. Now I have a baseline I can build from. PID tune in progress

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                          • Jaw8850undefined
                            Jaw8850
                            last edited by

                            @Veti
                            OK, I have re-run PID tuning on bed 1st then hotend. I have trimmed down my config files I believe. I am running G32 which homes all then probes center then probes each side lead screws. I then run G1 X137 Y156 Z5 to move the print head to the center of the bed. I then run G30 to get a zero value followed by G29. When done my mesh is a mess and the original z in the center of the bed is WAY BELOW 0, like -.962. any ideas what may cause this? I am running a mini IR probe and probing each spot 5 times with an S value of 0. I am probing a black textured pei sheet.

                            BedLevel.PNG

                            config.g
                            bed.g
                            homeall.g
                            homez.g

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                            • Phaedruxundefined
                              Phaedrux Moderator
                              last edited by

                              Can you show a photo of your bed surface?

                              Was it working at all before you updated from 2.05?

                              Taking a look at your latest files now.

                              Z-Bot CoreXY Build | Thingiverse Profile

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                              • Phaedruxundefined
                                Phaedrux Moderator
                                last edited by

                                I notice you have S0 in your M558. Delete that. The default is 0.03 and I don't think 0 is a valid way to use it.

                                Can you also post the results of M122 and M98 P"config.g"?

                                Z-Bot CoreXY Build | Thingiverse Profile

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                                • Phaedruxundefined
                                  Phaedrux Moderator
                                  last edited by

                                  By the way, if you're using stall detection for X and Y you really only need to make a single pass. A slower second pass makes no sense in this context since a good stall needs a short sharp shock.

                                  M913 X50 Y50 Z50	    ; drop motor currents to 50%
                                  M915 X Y S3 R0	    	; set sensitivity to +3 unfiltered
                                  G1 H1 X-305  F4800    	; move X all the way left and stop at end
                                  G4 P250                 ; wait 250msec
                                  G1 X10 F12000	        ; go back a few mm
                                  G4 P250                 ; wait 250msec
                                  G1 H1 X-305  F4800    	; move slowly to X axis endstop once more (second pass)
                                  G1 X10 F12000	        ; go back a few mm
                                  G4 P500                 ; wait 500msec
                                  G1 H1 Y-305  F4800	    ; move Y all the way forward and stop at end
                                  G1 Y10 F12000	        ; go back a few mm
                                  G1 H1 Y-305  F4800    	; move slowly to Y axis endstop once more (second pass)
                                  G4 P500                 ; wait 500msec
                                  G0 X127 Y142	F12000  ; go to back center of bed for measurement
                                  G4 P500                 ; wait 500msec
                                  

                                  Z-Bot CoreXY Build | Thingiverse Profile

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                                  • Jaw8850undefined
                                    Jaw8850 @Phaedrux
                                    last edited by Phaedrux

                                    @Phaedrux
                                    Thank you, I've taken out the S, and changed up Home All and HomeY and HomeX

                                    Here is M122

                                    1/8/2021, 8:06:43 PM	M122
                                    === Diagnostics ===
                                    RepRapFirmware for Duet 2 WiFi/Ethernet version 3.2 running on Duet Ethernet 1.02 or later
                                    Board ID: 08DGM-9T6BU-FG3S0-7JTD8-3S06N-KB4BD
                                    Used output buffers: 3 of 24 (16 max)
                                    === RTOS ===
                                    Static ram: 23460
                                    Dynamic ram: 68864 of which 100 recycled
                                    Never used RAM 19656, free system stack 104 words
                                    Tasks: NETWORK(ready,185) HEAT(blocked,309) MAIN(running,400) IDLE(ready,19)
                                    Owned mutexes:
                                    === Platform ===
                                    Last reset 00:30:06 ago, cause: software
                                    Last software reset at 2021-01-08 19:36, reason: User, GCodes spinning, available RAM 19864, slot 2
                                    Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0041f000 BFAR 0xe000ed38 SP 0x00000000 Task MAIN Freestk 0 n/a
                                    Error status: 0x00
                                    Aux0 errors 0,0,0
                                    MCU temperature: min 33.8, current 34.6, max 35.5
                                    Supply voltage: min 24.1, current 24.2, max 24.3, under voltage events: 0, over voltage events: 0, power good: yes
                                    Driver 0: position 81011, standstill, SG min/max 0/352
                                    Driver 1: position 5994, standstill, SG min/max 0/348
                                    Driver 2: position 16295, standstill, SG min/max 0/1023
                                    Driver 3: position 0, standstill, SG min/max not available
                                    Driver 4: position 0, standstill, SG min/max 0/1023
                                    Driver 5: position 0
                                    Driver 6: position 0
                                    Driver 7: position 0
                                    Driver 8: position 0
                                    Driver 9: position 0
                                    Driver 10: position 0
                                    Driver 11: position 0
                                    Date/time: 2021-01-08 20:06:40
                                    Cache data hit count 2734090471
                                    Slowest loop: 295.16ms; fastest: 0.17ms
                                    I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
                                    === Storage ===
                                    Free file entries: 10
                                    SD card 0 detected, interface speed: 20.0MBytes/sec
                                    SD card longest read time 2.0ms, write time 18.7ms, max retries 0
                                    === Move ===
                                    DMs created 83, maxWait 392107ms, bed compensation in use: mesh, comp offset 0.000
                                    === MainDDARing ===
                                    Scheduled moves 492, completed moves 492, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 6], CDDA state -1
                                    === AuxDDARing ===
                                    Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
                                    === Heat ===
                                    Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1 -1 -1
                                    === GCodes ===
                                    Segments left: 0
                                    Movement lock held by null
                                    HTTP is idle in state(s) 0
                                    Telnet is idle in state(s) 0
                                    File is idle in state(s) 0
                                    USB is idle in state(s) 0
                                    Aux is idle in state(s) 0
                                    Trigger is idle in state(s) 0
                                    Queue is idle in state(s) 0
                                    LCD is idle in state(s) 0
                                    Daemon is idle in state(s) 0
                                    Autopause is idle in state(s) 0
                                    Code queue is empty.
                                    === Network ===
                                    Slowest loop: 295.42ms; fastest: 0.02ms
                                    Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0), 0 sessions
                                    HTTP sessions: 1 of 8
                                    Interface state active, link 100Mbps full duplex
                                    

                                    homeall (1).g
                                    homex.g
                                    homey.g

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                                    • Jaw8850undefined
                                      Jaw8850 @Phaedrux
                                      last edited by

                                      @Phaedrux

                                      Here is result of M98"config.g"

                                      1/8/2021, 8:08:09 PM m98 P"config.g"
                                      HTTP is enabled on port 80
                                      FTP is disabled
                                      TELNET is disabled
                                      Error: Pin 'fan1' is not free
                                      Error: Fan number 2 not found

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                                      • Phaedruxundefined
                                        Phaedrux Moderator
                                        last edited by

                                        G30 Z ; home z by probing the bed
                                        G1 H1 Z3 ; lower bed for clearance

                                        In your homeall there are two things that aren't right.

                                        First G30 doesn't need Z. G30 by itself just means probe z at the current location.

                                        and you definitely don't want G1 H1 Z3 there. The H1 is a homing move. In your case both these things don't really have any effect, but figured you should know.

                                        If you want to raise the Z axis to a certain height at that point just use G1 Z

                                        Z-Bot CoreXY Build | Thingiverse Profile

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                                        • Phaedruxundefined
                                          Phaedrux Moderator @Jaw8850
                                          last edited by Phaedrux

                                          @Jaw8850 said in HELP WITH HEIGHT MAP HAS SUBSTANTIAL Z OFFSET WARNING:

                                          Error: Pin 'fan1' is not free
                                          Error: Fan number 2 not found

                                          Looks like you've got some fan problems too.

                                          M950 F1 C"fan1" Q500                               ; create fan 1 on pin fan1 and set its frequency
                                          M106 P1 S1 H1 T70                                  ; set fan 1 value. Thermostatic control is turned on
                                          M950 F2 C"fan1" Q500                               ; create fan 2 on pin fan1 and set its frequency
                                          M106 P2 S0.5 H1 T60                                ; set fan 2 value. Thermostatic control is turned on
                                          

                                          You're using fan1 twice. One of them is probably supposed to be fan2.

                                          Z-Bot CoreXY Build | Thingiverse Profile

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                                          • Phaedruxundefined
                                            Phaedrux Moderator
                                            last edited by Phaedrux

                                            The position that you use to probe the Z axis should be the same between homeall and homez. It should also be the same point you use for the G30 before running G29.

                                            G1 X137 Y156 F2000 ; put head over the centre of the bed, or wherever you want to probe

                                            G0 X127 Y142 F12000 ; go to back center of bed for measurement

                                            Z-Bot CoreXY Build | Thingiverse Profile

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