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    Manual Grid Mesh Levelling

    Duet Hardware and wiring
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    • Adamfilip
      Adamfilip last edited by Adamfilip

      I am having an issue with my Z pobe for auto leveling. so I want to generate a Mesh Grid Manually with just feeling paper tension on a 4x4 grid on my bed.

      Is there any function to make this easy to do that will go to each probe point and I can just babystep up or down as needed. and then it will record the point into the hightmap.csv file.

      Similar to how the Marlin function available.

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      • fcwilt
        fcwilt last edited by

        Hi,

        Please post your config.g file and your homing files using the </> tag.

        I'd rather get your z probe working but you can do what you ask by changing your M558 command.

        From the docs regarding the P parameter:

        P0 indicates that no Z probe is present. Whenever Z probing is commanded, you will be prompted to jog the Z axis until the nozzle is just touching the bed and then signal completion.

        Frederick

        Printers: A FT-5 with the 713 upgrade bits. A custom MarkForged style. A small Utilmaker style and a CoreXY from kits. Various hotends. Using Duets (2 and 3) running 3.4.1

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

          @Adamfilip said in Manual Grid Mesh Levelling:

          I am having an issue with my Z pobe for auto leveling. s

          what issue do you have?

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          • Adamfilip
            Adamfilip last edited by

            using 3x Piezo sensors under my bed. and its less sensitive towards the back of the bed, and often doesnt pickup probe points on all areas..

            but really I'm hoping to get manual mesh setup figured out

            fcwilt Veti 2 Replies Last reply Reply Quote 0
            • fcwilt
              fcwilt @Adamfilip last edited by

              @Adamfilip said in Manual Grid Mesh Levelling:

              using 3x Piezo sensors under my bed. and its less sensitive towards the back of the bed, and often doesnt pickup probe points on all areas..

              but really I'm hoping to get manual mesh setup figured out

              Getting those to work an be a pain - I guess you have a delta?

              In any case read my other post which tells you about what you want to do.

              Frederick

              Printers: A FT-5 with the 713 upgrade bits. A custom MarkForged style. A small Utilmaker style and a CoreXY from kits. Various hotends. Using Duets (2 and 3) running 3.4.1

              1 Reply Last reply Reply Quote 0
              • Adamfilip
                Adamfilip last edited by

                No delta, I have a Fixed Bed CoreXY machine

                fcwilt 1 Reply Last reply Reply Quote 0
                • fcwilt
                  fcwilt @Adamfilip last edited by

                  @Adamfilip said in Manual Grid Mesh Levelling:

                  No delta, I have a Fixed Bed CoreXY machine

                  And you are trying to use sensors under the bed? Curious.

                  Have you considered using a add-on z probe that connects to the extruder assembly?

                  Those are going to be much easier to get working well - particularly when probing a grid.

                  Frederick

                  Printers: A FT-5 with the 713 upgrade bits. A custom MarkForged style. A small Utilmaker style and a CoreXY from kits. Various hotends. Using Duets (2 and 3) running 3.4.1

                  1 Reply Last reply Reply Quote 0
                  • Adamfilip
                    Adamfilip last edited by

                    Yes I have previously had BLtouch that got ripped off from a loose print.. then replaced it and it it died from a head crash, I had a Duet IR Sensor, same fate. so I tried Piezo and it worked for a while but isn't reliable.

                    https://www.youtube.com/watch?v=JniUZn85Sb8

                    So now I'm going back to just a optical homing switch, and manual mesh levelling

                    fcwilt 1 Reply Last reply Reply Quote 0
                    • Veti
                      Veti @Adamfilip last edited by

                      @Adamfilip said in Manual Grid Mesh Levelling:

                      using 3x Piezo sensors under my bed. and its less sensitive towards the back of the bed, and often doesnt pickup probe points on all areas..

                      that sounds like its not working well

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

                        @Veti exactly why im going back to a simple setup with manual mesh levelling

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

                          Probe type P0 will work in a pinch.

                          Even stall detection on Z may work for you if you meet a few requirements.

                          Z-Bot CoreXY Build | Thingiverse Profile

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                          • fcwilt
                            fcwilt @Adamfilip last edited by fcwilt

                            @Adamfilip said in Manual Grid Mesh Levelling:

                            Yes I have previously had BLtouch that got ripped off from a loose print.. then replaced it and it it died from a head crash, I had a Duet IR Sensor, same fate. so I tried Piezo and it worked for a while but isn't reliable.

                            Wow. That is a one streak of bad luck.

                            How about an inductive sensor - they are quite sturdy - and if you don't use a bed with any sort of magnets they work very well.

                            Frederick

                            Printers: A FT-5 with the 713 upgrade bits. A custom MarkForged style. A small Utilmaker style and a CoreXY from kits. Various hotends. Using Duets (2 and 3) running 3.4.1

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                            • Adamfilip
                              Adamfilip last edited by Adamfilip

                              I am using Spring Steel spring bed with magnets underneath

                              fcwilt 1 Reply Last reply Reply Quote 0
                              • fcwilt
                                fcwilt @Adamfilip last edited by

                                @Adamfilip said in Manual Grid Mesh Levelling:

                                I am using Spring Steel spring bed with magnets underneath

                                Yeah - so am I - really like it but it means no more inductive sensor - back to the noisy BLTouch.

                                Frederick

                                Printers: A FT-5 with the 713 upgrade bits. A custom MarkForged style. A small Utilmaker style and a CoreXY from kits. Various hotends. Using Duets (2 and 3) running 3.4.1

                                1 Reply Last reply Reply Quote 0
                                • Adamfilip
                                  Adamfilip last edited by

                                  I didnt realize the magnets interfered with inductive sensors, how does prusa get away with it?

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

                                    @Adamfilip said in Manual Grid Mesh Levelling:

                                    I didnt realize the magnets interfered with inductive sensors, how does prusa get away with it?

                                    Perhaps they arrange the probe points to be away from the magnets?

                                    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

                                    Phaedrux 1 Reply Last reply Reply Quote 1
                                    • Phaedrux
                                      Phaedrux Moderator @dc42 last edited by

                                      @dc42 said in Manual Grid Mesh Levelling:

                                      Perhaps they arrange the probe points to be away from the magnets?

                                      Precisely this.

                                      Z-Bot CoreXY Build | Thingiverse Profile

                                      1 Reply Last reply Reply Quote 1
                                      • Adamfilip
                                        Adamfilip last edited by

                                        So going back to my original ask.

                                        to setup Grid Mesh leveling Manually. is there an easy way to do this?

                                        fcwilt 1 Reply Last reply Reply Quote 0
                                        • fcwilt
                                          fcwilt @Adamfilip last edited by

                                          @Adamfilip said in Manual Grid Mesh Levelling:

                                          So going back to my original ask.

                                          to setup Grid Mesh leveling Manually. is there an easy way to do this?

                                          Easy? That depends on what you consider easy.

                                          My first reply to you covered how to set the Z probe configuration to allow bed probing when there is no Z probe.

                                          Frederick

                                          Printers: A FT-5 with the 713 upgrade bits. A custom MarkForged style. A small Utilmaker style and a CoreXY from kits. Various hotends. Using Duets (2 and 3) running 3.4.1

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

                                            Setting m558 P0 and then using g29 as normal will ask you to manually jog the nozzle to touch the bed at each point.

                                            Z-Bot CoreXY Build | Thingiverse Profile

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                                            • Adamfilip
                                              Adamfilip last edited by

                                              Thank you @fcwilt & @Phaedrux I will give that a try

                                              fcwilt 1 Reply Last reply Reply Quote 0
                                              • fcwilt
                                                fcwilt @Adamfilip last edited by

                                                @Adamfilip said in Manual Grid Mesh Levelling:

                                                Thank you @fcwilt & @Phaedrux I will give that a try

                                                It works - I used to do it before I went ahead and installed a Z probe.

                                                Have you considered a removable Z probe - then it cannot get damaged during normal operations.

                                                Frederick

                                                Printers: A FT-5 with the 713 upgrade bits. A custom MarkForged style. A small Utilmaker style and a CoreXY from kits. Various hotends. Using Duets (2 and 3) running 3.4.1

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

                                                  this one is very cheap and works well on my delta
                                                  https://de.aliexpress.com/item/32838312776.html

                                                  1 Reply Last reply Reply Quote 1
                                                  • Adamfilip
                                                    Adamfilip last edited by

                                                    with this, look like you need to run the hotend, cold I assume.
                                                    an interesting idea

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                                                    • Adamfilip
                                                      Adamfilip @fcwilt last edited by

                                                      @fcwilt havent really but definately something to consider
                                                      but so gar the G29 manual is working for me.

                                                      Thank you for your help with this.

                                                      fcwilt 1 Reply Last reply Reply Quote 1
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