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Thread: My Axis is lagging

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  1. 07-02-2007, 02:05 AM #1
    laheyth
    laheyth is offline Registered
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    Jun 2006
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    My Axis is lagging

    I am using Mach 3, and when coming up out of a pocket with the Z axis, it seems that the next block begins to execute before the z motion is finshed.
    Is this an indication of too high of feed rate?.
    I am using steppers.
    I wind up with a curved interface, instead of a 90 degree corner
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  2. 07-02-2007, 02:14 AM #2
    ger21
    ger21 is offline Community Moderator
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    You're in Constant Velocity mode, G64. You can set Mach to Exact Stop mode (G61) in the general config screen, and you'll get sharp corners. The down side to exact stop mode is that mach3 will come to a complete stop at the end of every move. Higher acceleration settings can minimize the corner rounding in CV mode.
    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. 07-02-2007, 02:26 AM #3
    laheyth
    laheyth is offline Registered
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    thanks, I am only cutting wood, I can live with the lost time.
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