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  1. #1
    LetterCAM.com
    Join Date
    Oct 2005
    Posts
    186

    Does Mach3 tool diameter override gcode setting?

    If I set the tool diameter in Mach 3 and then load a gcode file, will the setting I added for the tool diameter override and stay the same and be used instead of whatever the gcode file has in it?

    Does Mach 3 compensate for the diameter of the tool with the toolpath? Meaning if I set the tool diameter to something very wide, will Mach 3 Cut outward from the toolpath to compansate for the width?

    Thanks!
    LetterCAM CNC Software
    http://www.LetterCAM.com

  2. #2
    Community Moderator ger21's Avatar
    Join Date
    Mar 2003
    Posts
    33862
    Quote Originally Posted by WarrenW

    Does Mach 3 compensate for the diameter of the tool with the toolpath? Meaning if I set the tool diameter to something very wide, will Mach 3 Cut outward from the toolpath to compansate for the width?

    Thanks!
    Only if you use G41/G42 code, and specify the tool # from the tool table.

    It should look like this for tool #1:

    G42 D1

    For this to work correctly, you'll need to use a lead in move for the compensation to take place. It can be a bit tricky to figure out.
    Gerry

    UCCNC 2017 Screenset
    http://www.thecncwoodworker.com/2017.html

    Mach3 2010 Screenset
    http://www.thecncwoodworker.com/2010.html

    JointCAM - CNC Dovetails & Box Joints
    http://www.g-forcecnc.com/jointcam.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)

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