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IndustryArena Forum > CAM Software > SheetCam > Exact stop vs cv mode in Mach 3 from sheetcam

Thread: Exact stop vs cv mode in Mach 3 from sheetcam

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  1. 06-29-2012, 03:30 PM #1
    drieslaas
    drieslaas is offline Registered
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    Exact stop vs cv mode in Mach 3 from sheetcam

    I have a problem with the jerky motion of my router.
    I can only find Mach 3post processors in Sheetcam that outputs arcs in I and J commands.
    I have previously, using other CAM software, always done arcs with coordinate points instead of I and J,and had no problems.
    I have tried to force CV mode on using a G64 line in the beginning of the Gcode file, and the CV mode is showing green on the Mach 3 screen?

    Can anyone help?

    Regards and thanks
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  2. 06-29-2012, 04:48 PM #2
    ger21
    ger21 is offline Community Moderator
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    If you mean the CV LED is green, then that means it's on?
    I don't really know what else you're asking?
    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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  3. 06-30-2012, 09:37 AM #3
    drieslaas
    drieslaas is offline Registered
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    Hi

    The CV LED is green. Even so the motion seems jerky through the endpoints ofhe arcs.
    What I am really after is a post processor which does not write out I and J commands to cut arc segments, but rather breaks an arc up into lots of small straight lines and then cuts it.
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