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    Duet 3 6HC with Openbuilds XYZ Probe

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    • Yveskeundefined
      Yveske @dc42
      last edited by

      @dc42 Sorry couldn't get it to install.
      Uploaded the zip and during install complains about some missing SDiap.bin file
      I uploaded all 3 files from "Updating Duet 3 from RRF3.0 Beta 12 to 3.0 Final via DWC" and tried again to no avail...
      Content of sys directory see below

      Please advise...

      bed.g
      config.g
      Duet3Firmware_MB6HC.bin
      homeall.g
      homex.g
      homey.g
      homez.g
      pause.g
      resume.g
      sleep.g
      stop.g
      tfree0.g
      Touch probe.g
      tpost0.g
      tpre0.g
      config.g.bak
      dwc-settings.json
      Duet3iap_spi_MB6HC.bin
      Duet3_SDiap_MB6HC.bin
      Duet3iap_sd_MB6HC.bin
      
      dc42undefined 1 Reply Last reply Reply Quote 0
      • Phaedruxundefined
        Phaedrux Moderator
        last edited by Phaedrux

        If you're running in SBC mode you might not be able to use the beta versions that way.

        https://duet3d.dozuki.com/Wiki/Getting_Started_With_Duet_3#Section_Software_Installation

        If you wish to use the latest unstable DSF components, you can run the following commands instead:

        wget -q https://pkg.duet3d.com/duet3d.gpg
        wget -q https://pkg.duet3d.com/duet3d-unstable.list
        sudo mv duet3d.gpg /etc/apt/trusted.gpg.d/
        sudo mv duet3d-unstable.list /etc/apt/sources.list.d/duet3d-unstable.list
        sudo chown root:root /etc/apt/trusted.gpg.d/duet3d.gpg
        sudo chown root:root /etc/apt/sources.list.d/duet3d-unstable.list
        Please be aware that the unstable repository is meant for beta testers and that it can contain experimental code. For production use, the stable repository is strongly recommended.

        Then update with sudo apt update && sudo apt upgrade

        Z-Bot CoreXY Build | Thingiverse Profile

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

          @Yveske said in Duet 3 6HC with Openbuilds XYZ Probe:

          Uploaded the zip and during install complains about some missing SDiap.bin file

          You will find that file in the official 3.3beta1 and 3.3beta2 releases on Github (it's the same file in both releases). Upload that file first, then uploading and installing the new Duet3Firmware_MB6HC.bin file should work.

          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

          Yveskeundefined 1 Reply Last reply Reply Quote 0
          • Yveskeundefined
            Yveske @dc42
            last edited by

            @dc42 Installation went ok this time.
            The probe doesn't move while executing M675 (not from macro and not from DWC) and displays a red popup "Probe was not triggered during probing move"

            ; Touch probe.g
            ; called to find workpiece bottom left corner via G38.2
            ;
            
            ; Display message without time-out and allow to position the bit
            M291 T-1 S3 X1 Y1 Z1 P"Make sure the bit is positioned in the hole of the touch probe well beneath the top surface" R"Touch probe"
            
            ; Find center of cavity
            M675 X R8 F100 P0                 ; Find center in X axis
            M675 Y R8 F100 P0                 ; Find center in Y axis
            
            ; Set bit above center of probe
            G0 Z15                            ; rapid move Z axis 15 mm
            G0 X27 Y27                        ; rapid move X and Y axis to middle of probe
            
            ; Probe Z component
            G38.2 Z-15 F100                   ; seek until the probe circuit is closed Z-axis -15 mm
            
            ; Return bit to center of hole
            G0 Z15                            ; rapid move Z axis 15 mm
            G0 X-27 Y-27                      ; rapid move X and Y axis to center of cavity
            G0 Z-15                           ; rapid move Z axis -15 mm
            
            G10 P0 L20 X0 Y0 Z10              ; store relative probe offset for coordinates system 0
            
            1 Reply Last reply Reply Quote 0
            • dc42undefined
              dc42 administrators
              last edited by

              Odd, it's working for me. Have you checked that the Z probe reading in DWC reads 0 when the probe is not triggered, and 1000 when it is triggered?

              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

              Yveskeundefined 3 Replies Last reply Reply Quote 0
              • Yveskeundefined
                Yveske @dc42
                last edited by

                @dc42 Sorry, will have to check further this afternoon, have to run now...

                1 Reply Last reply Reply Quote 0
                • Yveskeundefined
                  Yveske @dc42
                  last edited by

                  @dc42 I don't see the probe on screen with the new (beta) CNC UI.
                  Is there a way to revert to the old CNC UI?

                  b63f173c-d00c-4aa3-96d8-c426e3fcc1e4-image.png

                  Sindariusundefined 1 Reply Last reply Reply Quote 0
                  • Sindariusundefined
                    Sindarius @Yveske
                    last edited by

                    @Yveske you’ll just need to install the current dwc to replace the dwc-cnc version

                    Yveskeundefined 1 Reply Last reply Reply Quote 0
                    • Yveskeundefined
                      Yveske @Sindarius
                      last edited by

                      @Sindarius Thanks !!!

                      1 Reply Last reply Reply Quote 0
                      • Yveskeundefined
                        Yveske @dc42
                        last edited by

                        @dc42 Success !!!
                        It works but only after homing.

                        Thanks a lot !!!

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

                          Thanks, I'll add an error message if you use M675 before the axis is flagged as having been homed.

                          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

                          1 Reply Last reply Reply Quote 0
                          • Yveskeundefined
                            Yveske
                            last edited by

                            Tested 3.3RC2 and the touch probe is still working 👍 👍 👍

                            Just wanted to share my final version of my touch probe macro

                            ; Touch probe.g
                            ; called to find workpiece bottom left corner via G38.2 and M675
                            ;
                            ; If the printer hasn't been homed, home it
                            if !move.axes[0].homed || !move.axes[1].homed || !move.axes[2].homed
                              G28
                            
                            ; Display message without time-out and allow to position the bit
                            M291 T-1 S3 X1 Y1 Z1 P"Make sure the bit is positioned in the hole of the touch probe well beneath the top surface" R"Touch probe"
                            
                            ; Find center of cavity
                            M675 X R8 F100 K0                 ; Find center in X axis
                            M675 Y R8 F100 K0                 ; Find center in Y axis
                            
                            ; Set bit above center of probe
                            G91                               ; relative positioning
                            G0 Z15                            ; rapid move Z axis 15 mm
                            G0 X27 Y27                        ; rapid move X and Y axis to middle of probe
                            
                            ; Probe Z component
                            G38.2 Z-25                        ; seek until the probe circuit is closed Z-axis 25 mm
                            
                            ; Return bit to center of hole
                            G0 Z15                            ; rapid move Z axis 15 mm
                            G0 X-27 Y-27                      ; rapid move X and Y axis to center of cavity
                            G0 Z-10                           ; rapid move Z axis -10 mm
                            
                            G10 P1 L20 X0 Y0 Z15              ; store relative probe offset for coordinates system 1
                            
                            
                            CthulhuLabsundefined 1 Reply Last reply Reply Quote 2
                            • CthulhuLabsundefined
                              CthulhuLabs @Yveske
                              last edited by CthulhuLabs

                              @yveske In 3.3rc3 G38.2 moves towards an absolute machine position. So:

                              G38.2 Z-25
                              

                              Is trying to move to absolute position -25 Z. It is not move down 25 millimeters. As such if you are at a position below -25 Z your G38.2 will actually move up and away from the probe not down. The way I fixed this is to set it to:

                              G38.2 Z-500
                              

                              which is greater than my Z travel down. Only problem would be that if my probe does not trigger for some reason my spindle is going to crash into the work piece and try to keep going. Here is my version:

                              var ProbeThickness = 13;
                              var ProbeXWidth = 58;
                              var ProbeYWidth = 58;
                              var CoordSystem	= 20;
                              
                              ; If the printer hasn't been homed, home it
                              if !move.axes[0].homed || !move.axes[1].homed || !move.axes[2].homed
                              	G28
                              
                              M291 P"Insert a Dowel Pin into your spindle and center it in the probes hole" R"Probing" S3 X1 Y1 Z1
                              
                              ; Find center of cavity
                              M675 X R2 F300 K0						; Find center in X axis
                              M675 Y R2 F300 K0						; Find center in Y axis
                              
                              G10 P1 L{var.CoordSystem} X0 Y0					; Store X and Y as zero in CoordSystem
                               
                              ; Set bit above center of probe
                              G91								; relative positioning
                              G0 Z{var.ProbeThickness + 2}					; rapid move Z axis over the surface of the probe
                              G0 X{var.ProbeXWidth / 2} Y{var.ProbeYWidth / 2}		; rapid move X and Y axis to middle of probe
                               
                              ; Probe Z component
                              G38.2 Z-500							; seek down till you hit the probe
                              G0 Z5								; rapid move Z axis 5 mm
                              
                              G10 P1 L{var.CoordSystem} Z{var.ProbeThickness + 5}             ; store relative probe offset for coordinates system 1
                              G0 X{(var.ProbeXWidth / 2) * -1} Y{(var.ProbeYWidth / 2) * -1}	; go back over the hole
                              
                              G90								; Absolute positioning
                              

                              @dc42 Is this intended behavior? If so would it be possible to add an option to do relative moves or for G38.2 to recognize whether you have the machine in relative positioning mode or absolute positioning mode. I would like G38.2 to only probe down by the thickness of the probe plus 2mm which should ensure it makes contact assuming everything is setup correctly. If not it should not really collide with anything.

                              Yveskeundefined dc42undefined 2 Replies Last reply Reply Quote 0
                              • Yveskeundefined
                                Yveske @CthulhuLabs
                                last edited by

                                @cthulhulabs Thanks, wouldn't have caught that !

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

                                  @cthulhulabs said in Duet 3 6HC with Openbuilds XYZ Probe:

                                  @dc42 Is this intended behavior? If so would it be possible to add an option to do relative moves or for G38.2 to recognize whether you have the machine in relative positioning mode or absolute positioning mode. I would like G38.2 to only probe down by the thickness of the probe plus 2mm which should ensure it makes contact assuming everything is setup correctly.

                                  G38.2 uses absolute coordinates as defined by the NIST GCode standard, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=823374. If you want to use relative coordinates in G38.2 then you can calculate the positions, something like this:

                                  G38.2 Z{move.axes[2].userPosition-25}
                                  

                                  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

                                  Yveskeundefined CthulhuLabsundefined 2 Replies Last reply Reply Quote 1
                                  • Yveskeundefined
                                    Yveske @dc42
                                    last edited by

                                    @dc42 & @cthulhulabs Tested old (just for fun) and new and of course the old was plain wrong and the new worked like a charm !

                                    Thanks guys !

                                    1 Reply Last reply Reply Quote 0
                                    • CthulhuLabsundefined
                                      CthulhuLabs @dc42
                                      last edited by CthulhuLabs

                                      @dc42 Thanks! I am really loving the flexibility that the object model and meta commands allow for.

                                      @Yveske here is my final version:

                                      var ProbeThickness = 13;
                                      var ProbeXWidth = 58;
                                      var ProbeYWidth = 58;
                                      var CoordSystem	= 20;
                                      
                                      ; If the printer hasn't been homed, home it
                                      if !move.axes[0].homed || !move.axes[1].homed || !move.axes[2].homed
                                      	G28
                                      
                                      M291 P"Insert a Dowel Pin into your spindle and center it in the probes hole" R"Probing" S3 X1 Y1 Z1
                                      
                                      ; Find center of cavity
                                      M675 X R2 F300 K0							; Find center in X axis
                                      M675 Y R2 F300 K0							; Find center in Y axis
                                      
                                      G10 P1 L{var.CoordSystem} X0 Y0						; Store X and Y as zero in CoordSystem
                                       
                                      ; Set bit above center of probe
                                      G91									; relative positioning
                                      G0 Z{var.ProbeThickness + 2}						; rapid move Z axis over the surface of the probe
                                      G0 X{var.ProbeXWidth / 2} Y{var.ProbeYWidth / 2}			; rapid move X and Y axis to middle of probe
                                       
                                      ; Probe Z component
                                      G38.2 Z{move.axes[2].userPosition - (var.ProbeThickness + 2.25)}	; seek until the probe circuit is closed Z-axis 25 mm
                                      G0 Z5									; rapid move Z axis 5 mm
                                      
                                      G10 P1 L{var.CoordSystem} Z{var.ProbeThickness + 5}			; store relative probe offset for coordinates system 1
                                      G0 X{(var.ProbeXWidth / 2) * -1} Y{(var.ProbeYWidth / 2) * -1}		; go back over the hole
                                      
                                      G90									; Absolute positioning
                                      
                                      Yveskeundefined 1 Reply Last reply Reply Quote 1
                                      • Yveskeundefined
                                        Yveske @CthulhuLabs
                                        last edited by

                                        @cthulhulabs Love your use of variables, didn't know they were operational already, will definitely start using them also ! Thanks and have a nice one !

                                        1 Reply Last reply Reply Quote 0
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