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    How to test the Homing function ?

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    • nicosaltoundefined
      nicosalto
      last edited by

      Hi,
      this is a very beginner question iam sure.
      Iam trying to configure the homing action on my delta printer. I have configured the files following the wiki, now i want to trigger the homing action and see if it works, but how ?
      In the Machine control tab, i click the "home all" button, but then nothing happens. I can hear the motors turning ON, but nothing move…

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      • nicosaltoundefined
        nicosalto
        last edited by

        I tried to put the code into a macro:

        ; Homing file for RepRapFirmware on Mini Kossel
        G91 ; use relative positioning
        ;******* Change F250 in the following line to F2500 when you are finished commissioning
        ;******* Change 320 in the following to a higher value if your Kossel has taller towers
        G1 S1 X320 Y320 Z320 F1000 ; move all carriages up 320mm, stopping at the endstops
        G1 S2 X-3 Y-3 Z-3 ; move all carriages down 3mm
        G1 S1 X6 Y6 Z6 F250 ; move carriages slowly up 6mm, stopping at the endstops
        G1 Z-5 F2000 ; down a few mm so that we can centre the head
        G90 ; back to absolute positioning
        G1 X0 Y0 F2000 ; centre the head and set a reasonable feed rate

        But it doesnt work either…

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        • nicosaltoundefined
          nicosalto
          last edited by

          Actually testing a bit further. When i click "home all" a first time, the motors truns on, then i click a second time, the 3 motors are moving down a little.
          The "home all" doesnt execute all the g-code from the homedelta file ?
          it doesnt seem to execute: G1 S1 X320 Y320 Z320 F1000
          Going all the way up.

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          • nicosaltoundefined
            nicosalto
            last edited by

            In config.g, when i change this line M574 X2 Y2 Z2 S1 to M574 X2 Y2 Z2 S0 and click "home all" the 3 axis are going all the way up, but they dont stop when they touch my end stop …

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            • nicosaltoundefined
              nicosalto
              last edited by

              I figured it out!
              my end switches where wired the wrong way! now my homing function works!
              Next step, auto- calibration!

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              • nicosaltoundefined
                nicosalto
                last edited by

                This is what happen when i execute the auto-calibration : https://youtu.be/g-fBQl13hDI

                The first calibration point works fine, but then the head twist … Any idea why the head twist like this ?

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                • nicosaltoundefined
                  nicosalto
                  last edited by

                  Ha i fixed it!, mechanical issue 😉

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                  • Dougal1957undefined
                    Dougal1957
                    last edited by

                    Yep your effector was 60 degrees out Rods need to be parallel

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