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    Need help to config 2-Z Motors and Mesh bed compensation

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    • lui2004undefined
      lui2004
      last edited by lui2004

      Hi

      i hope you can help me i trying to work 2-Z Motors and Mesh bed compensation. I got strange results from 2-Z Motors and Mesh bed compensation.

      I use the Piezo Orion on my E3D V6
      Cartesian 220x220

      my config.g

      ; Configuration file for Duet WiFi (firmware version 1.21)
      ; executed by the firmware on start-up
      ;
      ; generated by RepRapFirmware Configuration Tool v2 on Thu Apr 11 2019 17:51:12 GMT+0200 (Mitteleuropäische Sommerzeit)

      ; General preferences
      G90 ; Send absolute coordinates...
      M83 ; ...but relative extruder moves

      ; Network
      M550 P"AM8" ; Set machine name
      M552 S1 ; Enable network
      M587 S"WLAN-" P"519647189" ; Configure access point. You can delete this line once connected
      M586 P0 S1 ; Enable HTTP
      M586 P1 S0 ; Disable FTP
      M586 P2 S0 ; Disable Telnet

      ; Drives
      M569 P0 S1 ; Drive 0 goes forwards X
      M569 P1 S0 ; Drive 1 goes forwards Y
      M569 P2 S1 ; Drive 2 goes backwards Z
      M569 P3 S1 ; Drive 3 goes forwards Extruder
      M569 P4 S1 ; Drive 4 2nd Z-motor - Normally used as Extruder 1

      ; Motor Remapping
      M584 X0 Y1 Z2:4 E3 ; two Z motors connected to driver outputs Z and E1

      M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
      ;M92 X100.00 Y100.00 Z400.00 E101.01 ; Set steps per mm
      M92 X100.00 Y100.00 Z400.00 E100.00 ; Set steps per mm
      M566 X600.00 Y600.00 Z18.00 E300.00 ; Set maximum instantaneous speed changes (mm/min)
      M203 X6000.00 Y6000.00 Z180.00 E6000.00 ; Set maximum speeds (mm/min)
      M201 X1500.00 Y1500.00 Z100.00 E10000.00 ; Set accelerations (mm/s^2)
      M906 X500.00 Y500.00 Z500.00 E800.00 I30 ; Set motor currents (mA) and motor idle factor in per cent
      M906 X1400.00 Y1400.00 Z1400.00 E800.00 I30 ; Set motor currents (mA) and motor idle factor in per cent
      M84 S30 ; Set idle timeout

      ; Axis Limits
      ;M671 X-15:205:205 Y105:205:15 P2.5 ; für manual bed levelling
      M671 X-20:220 Y0:0 S5.5 ; leadscrews at left and right of X axis für 2 motoren
      M208 X-33 Y-10 Z0 S1 ; Set axis minima
      M208 X220 Y210 Z200 S0 ; Set axis maxima
      ;M208 X-33:220 Y-10:210 ; X carriage moves from -5 to 205, Y bed goes from 0 to 200

      ; Endstops
      M574 X1 Y1 S0 ; Set active low and disabled endstops

      ; Z-Probe
      M574 Z1 S2 ; Set endstops controlled by probe
      M558 P5 I1 R0.5 H5 F350 ; Set Z probe type to effector and the dive height + speeds
      G31 P500 X0 Y0 Z-0.1 ; Set Z probe trigger value, offset and trigger height
      M557 X10:210 Y10:210 S40 ; Define mesh grid

      ; Heaters
      M307 H0 B0 S1.00 ; Disable bang-bang mode for the bed heater and set PWM limit
      M305 P0 T100000 B4725 C7.060000e-8 R4700 ; Set thermistor + ADC parameters for heater 0
      M143 H0 S130 ; Set temperature limit for heater 0 to 130C
      M305 P1 T100000 B4725 C7.060000e-8 R4700 ; Set thermistor + ADC parameters for heater 1
      M143 H1 S275 ; Set temperature limit for heater 1 to 275C

      ; Fans
      M106 P0 S0 I0 F500 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
      M106 P1 S1 I0 F500 H1 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on

      ; Tools
      M563 P0 D0 H1 ; 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

      ; Automatic saving after power loss is not enabled

      ; Custom settings are not configured

      ; Miscellaneous
      T0 ; Select first tool

      and my bed.g

      ; bed.g
      ; called to perform automatic bed compensation via G32
      ;
      ; generated by RepRapFirmware Configuration Tool v2 on Mon Apr 29 2019 10:01:00 GMT+0200 (Mitteleuropäische Sommerzeit)
      M561 ; clear any bed transform
      ;G29 ; probe the bed and enable compensation

      G28 ; home
      M401 ; deploy Z probe (omit if using bltouch)
      G30 P0 X10 Y110 Z-99999 ; probe near a leadscrew, half way along Y axis
      G30 P1 X210 Y110 Z-99999 S2 ; probe near a leadscrew and calibrate 2 motors
      M402 ; retract probe (omit if using bltouch)
      G29 ; probe the bed and enable compensation

      0_1557300166001_Mesh bed compensation.jpg

      I hope i got some advise whats going wrong

      Thanks a lot

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

        have you ruled out a mechanical issue?

        after you have done the leveling when you move the head to that position is the head far of the bed?

        1 Reply Last reply Reply Quote 0
        • lui2004undefined
          lui2004
          last edited by lui2004

          @veti said in Need help to config 2-Z Motors and Mesh bed compensation:

          have you ruled out a mechanical issue?
          after you have done the leveling when you move the head to that position is the head far of the bed?

          yes i ruled out the mechanical issues
          i changed the stepper motors the and the Bed and the lead-screws
          after this changes i have made Manual Bed Levelling to make Bed Flat.

          after Mesh the head stays on the last probe point

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

            You've definitely got some bad probe points in that mesh. Is the bed less stable on that side? Does it bend down more?

            Z-Bot CoreXY Build | Thingiverse Profile

            1 Reply Last reply Reply Quote 0
            • lui2004undefined
              lui2004
              last edited by lui2004

              Hi

              No it does not bend more.
              The nozzle with piezo orion touch the bed and go up.

              But you see The bed is not flat
              Is the config.g and bed.g ok ?

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

                I think you have your Z max speed set too low. The piezo probe needs a higher speed in order to register a solid contact.

                In your M558 for probe setup you have it set to F350, but in your M203 for Z max speed you are limiting it to Z180.

                So change M203 Z400 and try again.

                Z-Bot CoreXY Build | Thingiverse Profile

                1 Reply Last reply Reply Quote 0
                • lui2004undefined
                  lui2004
                  last edited by lui2004

                  thanks Phaedrus

                  it seems a lot better but not perfect right ?
                  what i can do to make it perfect ?

                  sorry my english is bad 😉
                  0_1557773167067_Mesh.jpg

                  RepRapFirmware height map file v2 generated at 2019-05-13 20:44, mean error 0.018, deviation 0.057
                  xmin,xmax,ymin,ymax,radius,xspacing,yspacing,xnum,ynum
                  10.00,210.00,10.00,210.00,-1.00,40.00,40.00,6,6
                  -0.002, -0.057, -0.090, -0.090, -0.077, -0.023
                  0.028, -0.002, -0.047, -0.015, -0.053, -0.023
                  0.010, -0.015, -0.038, -0.027, -0.002, 0.005
                  0.060, 0.055, 0.045, 0.032, 0.048, 0.050
                  0.135, 0.087, 0.068, 0.055, 0.065, 0.110
                  0.142, 0.058, 0.045, 0.010, 0.028, 0.065

                  this is my config.g what i have now

                  ; Configuration file for Duet WiFi (firmware version 1.21)
                  ; executed by the firmware on start-up
                  ;
                  ; generated by RepRapFirmware Configuration Tool v2 on Thu Apr 11 2019 17:51:12 GMT+0200 (Mitteleuropäische Sommerzeit)

                  ; General preferences
                  G90 ; Send absolute coordinates...
                  M83 ; ...but relative extruder moves

                  ; Network
                  M550 P"AM8" ; Set machine name
                  M552 S1 ; Enable network
                  M587 S"WLAN-" P"390696406*****" ; Configure access point. You can delete this line once connected
                  M586 P0 S1 ; Enable HTTP
                  M586 P1 S0 ; Disable FTP
                  M586 P2 S0 ; Disable Telnet

                  ; Drives
                  M569 P0 S0 ; Drive 0 goes forwards X
                  M569 P1 S0 ; Drive 1 goes forwards Y
                  M569 P2 S1 ; Drive 2 goes backwards Z
                  M569 P3 S1 ; Drive 3 goes forwards Extruder
                  M569 P4 S1 ; Drive 4 2nd Z-motor - Normally used as Extruder 1

                  ; Motor Remapping
                  M584 X0 Y1 Z2:4 E3 ; two Z motors connected to driver outputs Z and E1

                  M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
                  ;M92 X100.00 Y100.00 Z400.00 E101.01 ; Set steps per mm
                  M92 X100.00 Y100.00 Z400.00 E100.00 ; Set steps per mm
                  M566 X600.00 Y600.00 Z18.00 E300.00 ; Set maximum instantaneous speed changes (mm/min)
                  M203 X6000.00 Y6000.00 Z400.00 E6000.00 ; Set maximum speeds (mm/min)
                  M201 X1500.00 Y1500.00 Z100.00 E10000.00 ; Set accelerations (mm/s^2)
                  M906 X1400.00 Y1400.00 Z1400.00 E800.00 I30 ; Set motor currents (mA) and motor idle factor in per cent
                  M84 S30 ; Set idle timeout

                  ; Axis Limits
                  ;M671 X-15:205:205 Y105:205:15 P0.5 ; für manual bed levelling
                  M671 X-33:220 Y0:0 S5.5 ; leadscrews at left and right of X axis für 2 motoren
                  ;M208 X-33 Y-10 Z0 S1 ; Set axis minima
                  M208 X220 Y210 Z200 S0 ; Set axis maxima
                  M208 X-33:210 Y-10:210 ; X carriage moves from -5 to 205, Y bed goes from 0 to 200

                  ; Endstops
                  M574 X1 Y1 S0 ; Set active low and disabled endstops

                  ; Z-Probe
                  M574 Z1 S2 ; Set endstops controlled by probe
                  ;M558 P5 I1 R0.4 F300 ; Set Z probe type to effector and the dive height + speeds
                  ;M558 P5 I1 R0.4 F300 X0 Y0 Z0
                  M558 P5 I1 R0.4 F300 X0 Y0 Z0
                  ;M558 P8 I1 R0.6 F300 Z1
                  G31 X0 Y0 Z-0.1 P100 ; Set Z probe trigger value, offset and trigger height
                  M557 X10:210 Y10:210 S40 ; Define mesh grid

                  ; Heaters
                  M307 H0 B0 S1.00 ; Disable bang-bang mode for the bed heater and set PWM limit
                  M305 P0 T100000 B4725 C7.060000e-8 R4700 ; Set thermistor + ADC parameters for heater 0
                  M143 H0 S130 ; Set temperature limit for heater 0 to 130C
                  M305 P1 T100000 B4725 C7.060000e-8 R4700 ; Set thermistor + ADC parameters for heater 1
                  M143 H1 S275 ; Set temperature limit for heater 1 to 275C

                  ; Fans
                  M106 P0 S0 I0 F500 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
                  M106 P1 S1 I0 F500 H1 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on

                  ; Tools
                  M563 P0 D0 H1 ; 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

                  ; Automatic saving after power loss is not enabled

                  ; Custom settings are not configured

                  ; Miscellaneous
                  T0 ; Select first tool

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

                    I think it is probing perfectly. The heightmap doesn't look too bad. It does look like it's tilted a little lower in the front and higher in the back. You could try mechanically leveling it again to address that, or you could just let mesh compensation do it's thing and correct for the tilt.

                    You can use am STL like this to test if things are working correctly.

                    0_1557775133875_bedlevel_nozzle_0.4_200x200-0.3-0.8.stl

                    If you print it twice, once with mesh enabled, and once with mesh disabled, you can see if it's working as intended.

                    Z-Bot CoreXY Build | Thingiverse Profile

                    1 Reply Last reply Reply Quote 0
                    • lui2004undefined
                      lui2004
                      last edited by

                      Perfect i will Print tommorow

                      And let you know

                      Thanks

                      1 Reply Last reply Reply Quote 0
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