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    levelling and mesh

    Scheduled Pinned Locked Moved Solved
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    • MikeDCundefined
      MikeDC @MikeDC
      last edited by

      Today the bed wont even level.
      I have pages and pages of this where I have been trying.

      588288fa-e08d-47ee-96dc-fb8e25451ccf-image.png

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

        It telling you that the deviation is greater than you have it configured to try and fix.

        M671 X-16.698:172.011:360.72 Y2.021:355.231:2.021 s2.0

        The S2 at the end tells it how much it can try and correct.

        Z-Bot CoreXY Build | Thingiverse Profile

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        • MikeDCundefined
          MikeDC @MikeDC
          last edited by

          S2 is huge, ive always ran S0.02 previously

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

            Are you repeating the process or is it auto repeating with conditional gcode?

            Can you upload your actual config.g, homeall.g, bed.g etc?

            Z-Bot CoreXY Build | Thingiverse Profile

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

              @Phaedrux here they are 🙂
              config.g

              ; Configuration file for Duet 3 (firmware version 3)
              ; executed by the firmware on start-up
              ;
              ; generated by RepRapFirmware Configuration Tool v3.1.10 on Wed Dec 16 2020 20:30:34 GMT+0000 (Greenwich Mean Time)
              
              ; General preferences
              G90                                                                  ; send absolute coordinates...
              M83                                                                  ; ...but relative extruder moves
              M550 P"Bustamove"                                     ; set printer name
              M669 K1                                                          ; select CoreXY mode
              
              G4 S5                                                               ;  Wait for CAN Bus
              
              ; Drives
              M569 P0.0 S0                                           		; Drive 0 Left Motor goes backwards
              M569 P0.1 S0                                           		; Drive 1 Right Motor goes backwards
              M569 P0.2 S0                                           		; Drive 2 Extruder motor goes forwards
              ;M569 P0.3 S1					     							; Drive 3 Not Used
              M569 P0.4 S0					     							; Drive 4 Y2 motor goes backward
              M569 P0.5 S0					    							; Drive 5 X2 motor goes backward
              M569 P1.0 S1					     							; Drive 3 Zleft motor goes forward
              M569 P1.1 S1					     							; Drive 4 Zrear motor goes forward
              M569 P1.2 S1					    							; Drive 5 Zright motor goes forward
              
              ; Drive Selection 
              M584 X0.0:0.5 Y0.1:0.4 Z1.0:1.1:1.2 E2				     ; Three Z motors connected to driver outputs 1.0, 1.1 and 1.2 (Needs to be posted before M350 microstepping)
              M671 X-16.698:172.011:360.72 Y2.021:355.231:2.021 s2.0   ; Z LIFT POINT POSITIONS
              M350 X16 Y16 Z16 E8 I0                                   ; configure microstepping without interpolation
              M92 X160.00 Y160.00 Z800.00 E359.90                 ; set steps per mm
              M566 X800.00 Y800.00 Z60 E1400                  	     ; Set maximum instantaneous speed changes (mm/min)
              M203 X50000.00 Y50000.00 Z1000.00 E10000.00              ; Set maximum speeds (mm/min) / feedrate
              M201 X8000.00 Y8000.00 Z90.00 E800 				         ; Set accelerations (mm/s^2)
              M906 X1800.00 Y1800.00 Z1100.00 E600 I30         	     ; Set motor currents (mA) and motor idle factor in per cent
              
              M84 S30                                                  ; Set idle timeout
              M593 F38.1                                               ; cancel ringing at 65.5Hz -  print speed / distance between peaks of ringing
              
              ; Axis Limits
              M208 X-2 Y-12 Z-0.3 S1                                   ; set axis minimum
              M208 X315 Y325 Z320 S0                                   ; set axis maximum
              
              ; Endstops
              M574 X1 S1 P"io1.in"                                  ; configure active-high endstop for low end on X via pin io0.in
              M574 Y1 S1 P"io2.in"                                  ; configure active-high endstop for low end on Y via pin io1.in
              
              ; Z-Probe
              M574 Z1 S2                                            ; configure Z-probe endstop for low end on Z
              M950 S0 C"io7.out"                                    ; create servo pin 0 for BLTouch
              M558 P9 C"^io7.in" H6.0 A3 S0.02 F300 T10000          ; set Z probe type to bltouch and the dive height + speeds
              ;M558 H30                                             ;*** Remove this line after delta calibration has been done and new delta parameters have been saved
              G31 P500 X25 Y-10 Z2.058                              ; set Z probe trigger value, offset and trigger height
              M557 X25:330 Y-10:305 P8                              ; define mesh grid
              
              ; Heaters
              M308 S0 P"temp0" Y"thermistor" T100000 B4138         ; configure sensor 0 as thermistor on pin temp0
              M950 H0 C"out0" T0                                   ; create bed heater output on out0 and map it to sensor 0
              M307 H0 B1 S1.00                                     ; enable bang-bang mode for the bed heater and set PWM limit
              M140 H0                                              ; map heated bed to heater 0
              M143 H0 S120                                         ; set temperature limit for heater 0 to 120C
              
              ;M308 S1 P"temp1" Y"thermistor" T4606017 B5848 C5.548428e-8 ; DYZE HIGH TEMP 500C Thermister
              M308 S1 P"temp1" Y"pt1000" A"nozzle_temp"            ; configure sensor 1 as PT1000 on pin temp1
              M950 H1 C"out1" T1                                   ; create nozzle heater output on out1 and map it to sensor 1
              ; old M307 H1 R2.822 C405.600:226.700 D6.90 S1.00 V24.7 B0 ; PT1000 Autotuned
              M307 H1 R2.339 C413.3 D7.08 S1.00 V23.6 B0
              ;M307 H1 B0 S1.00                                    ; disable bang-bang mode for heater  and set PWM limit
              M143 H1 S350                                         ; set temperature limit for heater 1 to 350C 
              
              ; Fans
              M950 F0 C"out7" Q500                                 ; create fan 0 on pin out7 and set its frequency
              M106 P0 S0 H-1                                       ; set fan 0 value. Thermostatic control is turned off
              
              ;M308 S3 Y"drivers" A"DRIVERS"                        ; setup a virtual temperature sensor for the Drivers:
              M308 S4 Y"mcu-temp" A"MCU"                           ; setup a virtual temperature sensor for the MCU:
              M950 F1 C"!out4+out4.tach" A"MCU" Q25000             ; create fan 1 on pin out4 - figure out frequency rqd
              M106 P1 S1 X1 B0.3 T35:50 H3:4 L0.3                  ; set fan 1 value. Thermostatic control is turned on
              
              ; Tools
              M563 P0 S"Volcano" 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
              
              ; Miscellaneous
              M575 P1 S1 B57600                                    ; enable support for PanelDue
              M501                                                 ; load saved parameters from non-volatile memory
              M911 S22 R23.5 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss
              M912 P0 S-4.5                                        ; MCU Calibration
              
              ; Safety Contactor For Heatbed
              ; Use Gcodes in start print and end print and macros for pre-heating bed levelling etc
              ; M42 P2 S1                                          ; to turn contactor on
              ; M42 P2 S0                                          ; to turn contactor off
              M950 P2 C"out3"                                      ; set out3 to heatbed safety contactor
              M42 P2 S0                                            ; set heatbed contactor off
              T0
              
              

              bed.g , I have played with this a little tonight

              ; bed.g
              ; called to perform automatic bed compensation via G32
              ;
              ; generated by RepRapFirmware Configuration Tool v3.1.10 on Wed Dec 16 2020 20:30:34 GMT+0000 (Greenwich Mean Time)
              M561 ; clear any bed transform
              ; If the printer hasn't been homed, home it
              if !move.axes[0].homed || !move.axes[1].homed || !move.axes[2].homed
                G28
              ; Probe the bed and do auto calibration
              G1 X25 Y-20 Z10 F9000        ; go to just above the first probe point
              while true
                if iterations = 5
                  M291 P"Bed Leveling Aborted" R"Pass Limit Reached"
                  abort "Bed Leveling Aborted - Pass Limit Reached"
              ; run leveling pass
                G30 P0 X25 Y-20 Z-99999     ; LF
                if result != 0
                  continue
                G30 P1 X25 Y300 Z-99999     ; LR
                if result != 0
                  continue
                G30 P2 X330 Y300 Z-99999    ; RR
                if result != 0
                  continue
                G30 P3 X330 Y-20 Z-99999 S3 ; RF
                if result != 0
                  continue
                ; check results - exit loop if results are good
                if move.calibration.initial.deviation <= 0.024
                  break
                echo "Repeating calibration because deviation is too high (" ^ move.calibration.initial.deviation ^ "mm)"
              ; end loop
               
              echo "Auto calibration successful, deviation", move.calibration.final.deviation ^ "mm"
              G1 X0 Y0 Z10                ; move front left	
              
              

              homeall.g

              ; homeall.g
              ; called to home all axes
              ;
              M98 P"homex.g" ; Home X
              M98 P"homey.g" ; Home Y
              M98 P"homez.g" ; Home Z
              

              homex.g and homey.g are basically the same as each other

              ; homex.g
              ; called to home the X axis
              ;
              ; generated by RepRapFirmware Configuration Tool v3.1.10 on Wed Dec 16 2020 20:30:34 GMT+0000 (Greenwich Mean Time)
              G91               ; relative positioning
              G1 H2 Z5 F9000   ; lift Z relative to current position
              G1 H1 X-345 F9000 ; move quickly to X axis endstop and stop there (first pass)
              G1 X5 F9000       ; go back a few mm
              G1 H1 X-345 F300  ; move slowly to X axis endstop once more (second pass)
              G1 H2 Z-5 F9000  ; lower Z again
              G90               ; absolute positioning
              
              

              homez.g

              ; homez.g
              ; called to home the Z axis
              ;
              ; generated by RepRapFirmware Configuration Tool v3.1.10 on Wed Dec 16 2020 20:30:34 GMT+0000 (Greenwich Mean Time)
              G91                                   ; relative positioning
              G1 H2 Z5 F9000                        ; lift Z relative to current position
              G90                                   ; absolute positioning
              G1 X145 Y155 F9000                    ; move probe to centre of the bed
              G30                                   ; home Z by probing the bed
              
              ; Uncomment the following lines to lift Z after probing
              G91                                  ; relative positioning
              G1 Z5 F9000                          ; lift Z relative to current position
              G90                                  ; absolute positioning
              
              Phaedruxundefined 1 Reply Last reply Reply Quote 0
              • Phaedruxundefined
                Phaedrux Moderator @MikeDC
                last edited by

                @mikedc said in levelling and mesh:

                if move.calibration.initial.deviation <= 0.024

                It looks like your conditional is doing what you're asking.

                Did you mean to use 0.24 instead?

                Z-Bot CoreXY Build | Thingiverse Profile

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

                  @phaedrux

                  No i was using 0.02 I increased it to 0.024 where i was playing.

                  it used to always be around 0.016 so 0.02 was enough
                  now the lowest i can get it is 0.049 but more often it is anywhere between 0.071 and 0.11

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

                    If you do a repeated G30 S-1 test at your probe points are the results consistent?

                    Is it possible to move the Z motors to the mainboard?

                    Z-Bot CoreXY Build | Thingiverse Profile

                    Marcossfundefined MikeDCundefined 2 Replies Last reply Reply Quote 0
                    • Marcossfundefined
                      Marcossf @Phaedrux
                      last edited by

                      @MikeDC @Phaedrux Have a look at the David's answer in our thread about CAN delays with external boards:

                      @dc42 said:

                      I have put preliminary firmware that resolves this issue at https://www.dropbox.com/sh/cx760ysonlzzkjd/AACfsVfX4olHipuqmbWut5EKa?dl=0. Please test this firmware with care because I have only tested it using Duet 3 MB6HC + EXP3HC (the Z motor was connected to the EXP3HC).

                      If you are running your Duet with an attached Raspberry Pi then you must upgrade to RRF 3.4.0beta7 from the package server BEFORE you use these files.

                      Unfortunately we couldn't test it yet, so it's a good start point to see if this issue is addresed.

                      Best,

                      rjenkinsgbundefined MikeDCundefined 3 Replies Last reply Reply Quote 1
                      • rjenkinsgbundefined
                        rjenkinsgb @Marcossf
                        last edited by

                        @marcossf

                        One simple change that may help is just reduce the probing speed a lot, so any delays result in smaller errors.

                        In the config you posted earlier it is 300; try 50 or even less and see how that works?

                        I only use 60 even with a directly wired BLTouch!

                        As long as the clearance height is not excessive, it should not make all that much difference in speed but could increase accuracy a lot.

                        Robert J.

                        Printers: Overlord pro, Kossel XL+ with Duet 6HC and "Frankentron", TronXY X5SA Pro converted to E3D toolchange with Duet 6HC and 1LC toolboards.

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

                          @phaedrux

                          Ok with Z on the 3HC they was definately not consistent

                          I have now moved the 2 Y motors temporarily to the 3HC and moved the 3 Z motors back to the mainboard

                          74ba2dfb-c183-4711-8b30-eeb8f8ed7e52-image.png

                          d2ce8b67-e06d-479b-b113-21882caebb55-image.png

                          I think this is clearly showing it a 3HC can issue
                          consistent probing even if its not the 0.016 i was getting previously
                          but at least its not going as high as 0.71-0.11 now and look at the difference in the mesh, the 0.2mm difference front to back is gone.

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                          • MikeDCundefined
                            MikeDC @Marcossf
                            last edited by

                            This post is deleted!
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                            • MikeDCundefined
                              MikeDC @Marcossf
                              last edited by

                              @marcossf said in levelling and mesh:

                              @MikeDC @Phaedrux Have a look at the David's answer in our thread about CAN delays with external boards:

                              @dc42 said:

                              I have put preliminary firmware that resolves this issue at https://www.dropbox.com/sh/cx760ysonlzzkjd/AACfsVfX4olHipuqmbWut5EKa?dl=0. Please test this firmware with care because I have only tested it using Duet 3 MB6HC + EXP3HC (the Z motor was connected to the EXP3HC).

                              If you are running your Duet with an attached Raspberry Pi then you must upgrade to RRF 3.4.0beta7 from the package server BEFORE you use these files.

                              Unfortunately we couldn't test it yet, so it's a good start point to see if this issue is addresed.

                              Best,

                              I will definately test these files next thankyou

                              1 Reply Last reply Reply Quote 1
                              • MikeDCundefined
                                MikeDC @rjenkinsgb
                                last edited by

                                @rjenkinsgb said in levelling and mesh:

                                @marcossf

                                One simple change that may help is just reduce the probing speed a lot, so any delays result in smaller errors.

                                In the config you posted earlier it is 300; try 50 or even less and see how that works?

                                I only use 60 even with a directly wired BLTouch!

                                As long as the clearance height is not excessive, it should not make all that much difference in speed but could increase accuracy a lot.

                                I have already tried this, It doesnt help the inconsistancy,
                                Thankyou for the suggestion tho

                                1 Reply Last reply Reply Quote 1
                                • engikeneerundefined
                                  engikeneer @MikeDC
                                  last edited by

                                  @mikedc said in levelling and mesh:

                                  If the motors are delaying then i cannot put x or y or e here either as they will all have differing issues.

                                  I believe the firmware limitation is purely limited to probing moves as the motors will keep moving until the probe triggers and register their position (I.e. an unplanned event), whereas normal xy moves are all preplanned so can be synchronised between the boards. This seems to match what you are seeing

                                  E3D TC with D3Mini and Toolboards.
                                  Home-built CoreXY, Duet Wifi, Chimera direct drive, 2x BMG, 300x300x300 build volume
                                  i3 clone with a bunch of mods

                                  MikeDCundefined 1 Reply Last reply Reply Quote -1
                                  • MikeDCundefined
                                    MikeDC @engikeneer
                                    last edited by

                                    @engikeneer I agree,

                                    I started a print around an hour ago, first one since i added the 3hc board.

                                    with Z on the 3hc and the levels and mesh i dare not try printing,
                                    but with the 2 Y motors on the board it seemed more stable so have started a print and so far its looking ok.

                                    maybe one small alignment issue at the start of the print, between the brim and the part but i need to wait for it to finish to check it properly.

                                    1 Reply Last reply Reply Quote 0
                                    • MikeDCundefined
                                      MikeDC
                                      last edited by

                                      It is fixed in B7+2 🙂
                                      see my post here 🙂

                                      https://forum.duet3d.com/topic/25720/g30-stop-values-increasing-each-time/26?_=1641577026578

                                      to confirm, Z is back on 3HC and multiprobing each point is giving good results again.

                                      1ff898ec-e00f-498a-85ec-5bfe6c70528d-image.png

                                      5fdb28ba-84da-43a8-8c68-edcaa5b31450-image.png

                                      Thankyou @Phaedrux and @dc42

                                      1 Reply Last reply Reply Quote 1
                                      • Phaedruxundefined Phaedrux marked this topic as a question
                                      • Phaedruxundefined Phaedrux has marked this topic as solved
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