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    Voted "No" to Home XYZ on Startup

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    • Nightowlundefined
      Nightowl
      last edited by Nightowl

      I'm not sure if I want to do this (it was set by default on my previous machine - a Shapeoko 3), but is this an acceptable way to home my machine when it starts up, please?

      Adding a line like this at the end of the config.g file:

      ; Home machine on startup
      M98 P"homeall.g"
      

      The reason I'm not sure if this is a good idea is I occasionally start up the machine remotely, when I'm reviewing config files, for example, so it would probably be better if there was a prompt with an option to home, or not, with maybe a timeout not to home, if I ignore the prompt.

      This delay would also help where the machine is turned on but the browser takes a few seconds to connect to the machine, which begs the question: Does turning on the machine run the config.g file, or connecting to the machine via the browser?

      The more I think about it, the more pointless this sounds, especially as I could just run the
      homeall.g file as and when I need to, but I'm curious what others CNC users think.

      Thanks

      Few things are more dangerous than taking the advice of someone who thinks he knows what he's doing.
      I'm still on my learning curve, so take everything I say with caution!

      RatRig 1075, Duet3 MB6HC, Sorotec SFM 1000 PV-ER milling motor, Hobbyist

      jay_s_ukundefined 1 Reply Last reply Reply Quote 0
      • jay_s_ukundefined
        jay_s_uk @Nightowl
        last edited by jay_s_uk

        @Nightowl I would advise against homing on startup. I often leave things on the bed of my CNC that would get damaged or knocked off if I didn't move them

        Edit: also, the motors are degenergised if not homed. If you home them and then don't use the machine for a while, it's consuming energy for no gain

        Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

        Nightowlundefined 1 Reply Last reply Reply Quote 0
        • Nightowlundefined
          Nightowl @jay_s_uk
          last edited by

          @jay_s_uk
          Yeah, I kind of get that. I had a bit of an issue with the manufacturer of my previous machine on this subject, but they believed it was perfectly acceptable to do this. What made matters worse was their machine barrelled forward to the front edge after homing, to prompt for a tool. I thought that was more dangerous.

          I probably wonโ€™t do this ๐Ÿ‘๐Ÿค”

          Few things are more dangerous than taking the advice of someone who thinks he knows what he's doing.
          I'm still on my learning curve, so take everything I say with caution!

          RatRig 1075, Duet3 MB6HC, Sorotec SFM 1000 PV-ER milling motor, Hobbyist

          1 Reply Last reply Reply Quote 1
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