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    Sensorless Homing on a CoreXY

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    • oliofundefined
      oliof @djstephenson1
      last edited by

      @djstephenson1 sensorless homing on corexy works just fine. Look for the railcore blog where they have a sample homex.g/homey.g for sensorless homing. I used that as a basis for my vcore pro. My machine is off at the moment or I'd have linked to my files.

      <>RatRig V-Minion Fly Super5Pro RRF<> V-Core 3.1 IDEX k*****r <> RatRig V-Minion SKR 2 Marlin<>

      zaptaundefined djstephenson1undefined 2 Replies Last reply Reply Quote 1
      • zaptaundefined
        zapta @oliof
        last edited by

        @oliof said in Sensorless Homing on a CoreXY:

        ... sensorless homing on corexy works just fine ...

        What kind of stops do you get at the ends, soft quiet ones or more bumpy that sounds like a minor car crash?

        I get a soft one on the X and a louder one on the Y, maybe because there is more mass moving (?).

        My M915 is in line 54 here https://github.com/zapta/misc/blob/master/hevo/duet3/sys/config.g and the homing procedure is here https://github.com/zapta/misc/blob/master/hevo/duet3/sys/homeall.g .

        oliofundefined 1 Reply Last reply Reply Quote 0
        • macguyverundefined
          macguyver
          last edited by

          I use sensorless homing on my machine for now. The homing macros turn down the speeds and sensitivity so that it does not slam into the side. Usually it is nice and soft. That said I am going to install a homing switch eventually as they can be more accurate when using stall detection.

          1 Reply Last reply Reply Quote 1
          • oliofundefined
            oliof @zapta
            last edited by

            @zapta soft bumps on both.

            <>RatRig V-Minion Fly Super5Pro RRF<> V-Core 3.1 IDEX k*****r <> RatRig V-Minion SKR 2 Marlin<>

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            • djstephenson1undefined
              djstephenson1 @oliof
              last edited by

              @oliof I am getting the full on car crash sound movement...

              macguyverundefined Phaedruxundefined 2 Replies Last reply Reply Quote 0
              • macguyverundefined
                macguyver @djstephenson1
                last edited by

                @djstephenson1 Do you have an M913 in your homing file to reduce the voltage?

                https://duet3d.dozuki.com/Wiki/Gcode#Section_M913_Set_motor_percentage_of_normal_current

                djstephenson1undefined 2 Replies Last reply Reply Quote 0
                • Phaedruxundefined
                  Phaedrux Moderator @djstephenson1
                  last edited by

                  @djstephenson1 said in Sensorless Homing on a CoreXY:

                  @oliof I am getting the full on car crash sound movement...

                  Share your configs.

                  Z-Bot CoreXY Build | Thingiverse Profile

                  djstephenson1undefined 1 Reply Last reply Reply Quote 0
                  • oliofundefined
                    oliof
                    last edited by

                    Here are mine

                    https://gist.github.com/oliof/53817f9214af0721b61722d8ea6c392c

                    X and Y are equipped with .9° 46Ncm 2A Nema17 steppers by OMC.

                    <>RatRig V-Minion Fly Super5Pro RRF<> V-Core 3.1 IDEX k*****r <> RatRig V-Minion SKR 2 Marlin<>

                    zaptaundefined 1 Reply Last reply Reply Quote 1
                    • djstephenson1undefined
                      djstephenson1 @macguyver
                      last edited by

                      @Phaedrux I will share shortly.

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                      • djstephenson1undefined
                        djstephenson1 @macguyver
                        last edited by

                        @macguyver yes, I do

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                        • djstephenson1undefined
                          djstephenson1 @Phaedrux
                          last edited by

                          This post is deleted!
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                          • zaptaundefined
                            zapta @oliof
                            last edited by

                            @oliof, thanks for the config. I think I have same steppers. I increased the x/y homing speed from F2000 to F4000 and it seems to be gentler touch.

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