Need Help! Feedrate do not change before 5-10 sec after i slide it....


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Thread: Feedrate do not change before 5-10 sec after i slide it....

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    Member Vegabond's Avatar
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    Red face Feedrate do not change before 5-10 sec after i slide it....

    Hello.

    I have a problem.
    When i adjust the feedrate override, the cnc does not adjust the feedrate immediately, but it wait to the g-code line is finish, and sometimes longer then that.

    Can i change that?


    Greetings from Robert.

    Similar Threads:
    My second homebuilt cnc machine cnczone.com/forums/norwegian_club_house/123977-ombygget_cnc_-_gecko_540_a.html


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    Member ger21's Avatar
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    That's because MAch3 is a buffered system, and some of the movements have already been sent to the buffer.

    Two things you can try.

    In General Config, check "No FRO on Queue"

    You might also try reducing the lookahead, but I'm not sure if it will help or not.

    Gerry

    UCCNC 2017 Screenset
    [URL]http://www.thecncwoodworker.com/2017.html[/URL]

    Mach3 2010 Screenset
    [URL]http://www.thecncwoodworker.com/2010.html[/URL]

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

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


  3. #3
    Member Vegabond's Avatar
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    "No FRO on Queue" was on...

    What is lookahead?

    Thanks.


    Robert.

    My second homebuilt cnc machine cnczone.com/forums/norwegian_club_house/123977-ombygget_cnc_-_gecko_540_a.html


  4. #4
    Member ger21's Avatar
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    Then try unchecking "No FRO on Queue"

    Lookahead is also in general config. Default is 200.

    Gerry

    UCCNC 2017 Screenset
    [URL]http://www.thecncwoodworker.com/2017.html[/URL]

    Mach3 2010 Screenset
    [URL]http://www.thecncwoodworker.com/2010.html[/URL]

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

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


  5. #5
    Member Vegabond's Avatar
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    Lookahead is 20 lines...


    Robert.

    My second homebuilt cnc machine cnczone.com/forums/norwegian_club_house/123977-ombygget_cnc_-_gecko_540_a.html


  6. #6
    Member Vegabond's Avatar
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    Hello again.

    I have now started to use my cnc... Do all the people out there have this "problem" ?

    I now when i run EMC2, it stops immediately when i press "feed hold" button... But now it can use 1 second or two...


    Greetings from Robert.

    My second homebuilt cnc machine cnczone.com/forums/norwegian_club_house/123977-ombygget_cnc_-_gecko_540_a.html


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Feedrate do not change before 5-10 sec after i slide it....

Feedrate do not change before 5-10 sec after i slide it....