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  1. #1
    Join Date
    Jan 2018
    Posts
    3

    as soon as i load g-code in mach3 my scale is out

    I have a zenbot 48 x 48 with a g540 controller. As long as I don't have G-Code loaded into mach3 it runs to scale, but as soon as I load in G-Code that I have made from Aspire or artcam the scale is out almost a quarter inch. I have tried to get in touch with Sean at zenbot for a couple months now with no response. I have checked to make sure that all of my programs are set too inch units. I'm at a complete loss. If I load a wizard in mach3 it will actually cut to scale. I have attached the setup file that was sent with my CNC for mach3 and G-Code file from Aspire.

  2. #2
    Join Date
    Dec 2014
    Posts
    103

    Re: as soon as i load g-code in mach3 my scale is out

    Is your Cut set to the outside of the line? If your using a 1/4 bit and cut on center your part will be 1/4 inch small.

  3. #3
    Join Date
    Mar 2003
    Posts
    35538

    Re: as soon as i load g-code in mach3 my scale is out

    Are your native Units in Mach3 set to inch or metric?
    Is the g-code in inches or mm's?
    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)

  4. #4
    Join Date
    Jan 2018
    Posts
    3

    Re: as soon as i load g-code in mach3 my scale is out

    that was the first thing that crossed my mind when I realized it wasn't cutting too scale. I have redone the tool paths so many times it's not even funny. LOL
    Weather I have it cut on the line or offset it's still the same.

  5. #5
    Join Date
    Jan 2018
    Posts
    3

    Re: as soon as i load g-code in mach3 my scale is out

    my native units in mach3 are set too inch.

  6. #6
    Join Date
    Jan 2005
    Posts
    15362

    Re: as soon as i load g-code in mach3 my scale is out

    Quote Originally Posted by jowood69 View Post
    my native units in mach3 are set too inch.
    Remove these codes one at a time, this may not fix the problem, they are codes that are not needed to run this program

    G70
    G91.1
    G94
    Mactec54

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