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Sensorless Homing on a CoreXY

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    oliof @djstephenson1
    last edited by 1 Aug 2020, 20:53

    @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<>

    undefined undefined 2 Replies Last reply 1 Aug 2020, 21:02 Reply Quote 1
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      zapta @oliof
      last edited by 1 Aug 2020, 21:02

      @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 .

      undefined 1 Reply Last reply 2 Aug 2020, 09:40 Reply Quote 0
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        macguyver
        last edited by 2 Aug 2020, 07:32

        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
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          oliof @zapta
          last edited by 2 Aug 2020, 09:40

          @zapta soft bumps on both.

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

          1 Reply Last reply Reply Quote 0
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            djstephenson1 @oliof
            last edited by 2 Aug 2020, 12:17

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

            undefined undefined 2 Replies Last reply 2 Aug 2020, 21:28 Reply Quote 0
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              macguyver @djstephenson1
              last edited by 2 Aug 2020, 21:28

              @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

              undefined 2 Replies Last reply 4 Aug 2020, 11:46 Reply Quote 0
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                Phaedrux Moderator @djstephenson1
                last edited by 2 Aug 2020, 22:22

                @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

                undefined 1 Reply Last reply 4 Aug 2020, 12:35 Reply Quote 0
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                  oliof
                  last edited by 4 Aug 2020, 10:49

                  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<>

                  undefined 1 Reply Last reply 10 Aug 2020, 23:07 Reply Quote 1
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                    djstephenson1 @macguyver
                    last edited by 4 Aug 2020, 11:46

                    @Phaedrux I will share shortly.

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                      djstephenson1 @macguyver
                      last edited by 4 Aug 2020, 11:46

                      @macguyver yes, I do

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                        djstephenson1 @Phaedrux
                        last edited by 4 Aug 2020, 12:35

                        This post is deleted!
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                          zapta @oliof
                          last edited by 10 Aug 2020, 23:07

                          @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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