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    G30 S-1 is giving me heart stitches [SOLVED]

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    • o_lampeundefined
      o_lampe @Veti
      last edited by

      @Veti said in G30 S-1 is giving me heart stitches:

      @o_lampe said in G30 S-1 is giving me heart stitches:

      I use the console, but also tried to setup a probe grid and use the menu run mesh bed levelling

      i see no M557 definition in your config for the mesh bed leveling

      Right,
      It's defined through the autoleveling menu in DWC.
      That's why I tried to update DWC to 2.07...

      I can try to put it in the config.g and then simply send G29 from the console?

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

        @o_lampe said in G30 S-1 is giving me heart stitches:

        It's defined through the autoleveling menu in DWC.

        again the configtool will generate a config for you that has all the relevant parameters set.
        even M557

        i suggest that you put your existing values in there.
        this will also make the migration to version 3 a lot easier as you can just import he json

        1 Reply Last reply Reply Quote 0
        • o_lampeundefined
          o_lampe
          last edited by

          OK, thanks to both of you @Veti and @chrishamm
          for the qiuck responses.
          I now have the confidence to solve it.
          Will report later

          1 Reply Last reply Reply Quote 0
          • o_lampeundefined
            o_lampe
            last edited by

            Ok, no changes in behaviour so far...
            I changed the maxima setting to 208 ...S0
            I added M557 X10:250 Y10:170 S40:40 to specify the mesh grid
            I copied DWC 2.07 to the SD card. ( What a relieve)

            But still it does these funny moves and crashes into the leadscrew.

            Any other suggestions?

            1 Reply Last reply Reply Quote 0
            • o_lampeundefined
              o_lampe
              last edited by

              Oh, there's one thing I want to ask:
              I have a negative number for Zmin in the M208 S1.
              Now, when I home Z, the homed height is set to -2 or whatever I set in M208.
              I haven't found the right way to compensate that other than overwriting it with G92 Z0.

              Does it matter if my G31 Z-probe definition is before or after M208?

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

                @o_lampe said in G30 S-1 is giving me heart stitches:

                Now, when I home Z, the homed height is set to -2 or whatever I set in M208.

                post you home script

                o_lampeundefined 1 Reply Last reply Reply Quote 0
                • fcwiltundefined
                  fcwilt
                  last edited by

                  M574 X Y S3 - where are the values for X and Y specify the location of the end stop?

                  You have specified the Z trigger height in G31 as 0. Usually a capacitive probe triggers a few mm off the surface.

                  Also capacitive probes can be slow to respond so you might need to change the F value in M558.

                  When you home any axis the position is set to the axis min/max based on the axis parameter in M574.

                  You have specified that the end stop of Z is at the low end so it gets set to Z min which you have as -2.

                  Why do you have Z min as -2?

                  Frederick

                  Printers: a small Utilmaker style, a small CoreXY and a E3D MS/TC setup. Various hotends. Using Duet 3 hardware running 3.4.6

                  1 Reply Last reply Reply Quote 0
                  • o_lampeundefined
                    o_lampe @Veti
                    last edited by o_lampe

                    @Veti said in G30 S-1 is giving me heart stitches:

                    @o_lampe said in G30 S-1 is giving me heart stitches:

                    Now, when I home Z, the homed height is set to -2 or whatever I set in M208.

                    post you home script

                    G91
                    G29 S2
                    G1 S1 Z-300 F800
                    G1  Z5 F800
                    G1 S1 Z-10
                    ;G92  Z0.0
                    G90
                    ;G29 S1
                    
                    
                    
                    

                    What does it mean, when DWC is giving me a warning about Z=0 datum isn't set everytime i load the heightmap?
                    Is it trying to do that, when it crashes against the leadscrew?
                    I've made two short videos to show what happens, but I'm not sure when I find the nerve to upload them to u-tube.

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

                      that is not a home script. as it disregards any endstop

                      nevermind. it used the old S syntax.

                      that is the reason why its set to S-1
                      when the endstop is triggered the axis is set to the endstop position.
                      with a G30 this will not happen as this sets the current positon to z=0

                      that would also get rid of the Z=0 datum message.

                      o_lampeundefined 2 Replies Last reply Reply Quote 0
                      • o_lampeundefined
                        o_lampe @Veti
                        last edited by

                        @Veti
                        To be clear, it uses the Z-probe as endstop.

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

                          that is wrong.

                          try a default homez.

                          ; homez.g
                          ; called to home the Z axis
                          ;
                          ; generated by RepRapFirmware Configuration Tool v3.2.2 on Wed Jan 20 2021 13:31:39 GMT+0100 (Central European Standard Time)
                          G91 ; relative positioning
                          G1 H2 Z5 F6000 ; lift Z relative to current position
                          G90 ; absolute positioning
                          G1 X15 Y15 F6000 ; go to first probe point
                          G30 ; home Z by probing the bed

                          ; Uncomment the following lines to lift Z after probing
                          ;G91 ; relative positioning
                          ;G1 Z5 F100 ; lift Z relative to current position
                          ;G90 ; absolute positioning

                          1 Reply Last reply Reply Quote 0
                          • o_lampeundefined
                            o_lampe @Veti
                            last edited by

                            @Veti said in G30 S-1 is giving me heart stitches:

                            with a G30 this will not happen as this sets the current positon to z=0
                            that would also get rid of the Z=0 datum message.

                            So, I should use G30 instead of G1 S1?

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

                              @o_lampe

                              yes

                              you REALLY need to use a standard config that is generated by the config tool.

                              o_lampeundefined 1 Reply Last reply Reply Quote 0
                              • o_lampeundefined
                                o_lampe @Veti
                                last edited by

                                @Veti said in G30 S-1 is giving me heart stitches:

                                @o_lampe

                                yes

                                you REALLY need to use a standard config that is generated by the config tool.

                                I started filling out the config wizard, but then got stuck with the stepper settings. I would have to copy my existing config settings into the wizard, so what is it good for?
                                I'd just copy any possible mistake into the new file, if there's any...

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

                                  @o_lampe
                                  well it would have generated a correct homing script for once.
                                  and as i said it will make the migration to version 3 easier

                                  1 Reply Last reply Reply Quote 0
                                  • o_lampeundefined
                                    o_lampe
                                    last edited by o_lampe

                                    @Veti said in G30 S-1 is giving me heart stitches:

                                    G1 X15 Y15 F6000 ; go to first probe point

                                    The head moves to that first probe point and then throws an error insufficient axes homed
                                    As always I homed X/Y before homeZ with G92 X0 Y0.

                                    Do I really have to install endstops for X/Y axis?
                                    I never needed them for my CNC. I just parked the toolhead at 0,0 before I switched off and went the G92 way to start...
                                    I checked the homeX/Y files. They all look similar to the one I originally posted. (I had this SD-card backup from my CNC machine)

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

                                      the G30 command give you insufficient axis homed?

                                      o_lampeundefined 1 Reply Last reply Reply Quote 0
                                      • fcwiltundefined
                                        fcwilt @o_lampe
                                        last edited by

                                        @o_lampe said in G30 S-1 is giving me heart stitches:

                                        As always I homed X/Y before homeZ with G92 X0 Y0.

                                        The would work IF the actual positions of X and Y were zero. How do you know they are?

                                        Do I really have to install endstops for X/Y axis?

                                        No - you can use sensor-less homing.

                                        I don't care for that myself. To me using physical end stop sensors for homing is like stopping your car using the brakes. Sensor-less homing seems like stopping your car by running into the car in front of you. 😉


                                        As to using G30: did you read the docs on what each variant of G30 does?

                                        Frederick

                                        Printers: a small Utilmaker style, a small CoreXY and a E3D MS/TC setup. Various hotends. Using Duet 3 hardware running 3.4.6

                                        o_lampeundefined 1 Reply Last reply Reply Quote 1
                                        • o_lampeundefined
                                          o_lampe @Veti
                                          last edited by

                                          @Veti said in G30 S-1 is giving me heart stitches:

                                          the G30 command give you insufficient axis homed?

                                          No, the macro doesn't run G30 because of the error message.

                                          I used jumpers on X/Y endstops and defined them as active high
                                          When I ask M119 it reports X/Y at min endstops. Now I should be able to use the homeall macro. But it stops after the same line as above mentioned.

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                                          • Vetiundefined
                                            Veti
                                            last edited by

                                            post your homeall then

                                            o_lampeundefined 1 Reply Last reply Reply Quote 0
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