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    Confusion regarding Tool Length Offset / M585

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    • tealfixieundefined
      tealfixie
      last edited by

      I am working on writing a macro to automate a tool change, tool length probe, and return to a safe Z above origin of the the last operation.

      I am a little confused about the functionality of the M585 command with regard to tool number. Specifically the confusion revolves around the spindle tool number versus the endmill tool number.

      In the config.g, the spindle is defined with M563 as P0. Does the M585 use this tool number for offsets?

      Or does it require a Tnnnn command before a M585 and offsets are saved to this endmill tool number?

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      • HebigTundefined
        HebigT
        last edited by HebigT

        @tealfixie

        Hey, did you ever find an answer to this?

        I'm trying to understand your distinction between "spindle" tool number and "endmill" tool number.

        Do you have separate tools for each endmill, or does your machine automatically toolchange into the same spindle?

        If it's the second one, I imagine you could just redefine the tool number in the tool change macros for each endmill/cutter, so that each one has it's own offsets, referenced by G10 P...

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        • dc42undefined
          dc42 administrators @tealfixie
          last edited by

          @tealfixie the M585 command is normally used to probe in the X or Y direction, not Z.

          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

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