Need Help! Robodrill slowing down in the wierdest places


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Thread: Robodrill slowing down in the wierdest places

  1. #1
    Member wylecyte's Avatar
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    Question Robodrill slowing down in the wierdest places

    New to forums so bear with me of the forum phaux pax's.

    Running a 2002 Robodrill A -T14 iC Fanuc 16i -M Control using HSM works SW add in to post the following. She slows way down (odd 11.81 in/min) on a straight line x travel then resumes at the G03 arc and remains on a straight line. Doesn't always happen very arbitrary as were it selects to do this. 2d and 3d geometry are both affected. Tool size nor path seems to dictate the occurrence.

    Anyone see something in this code or have experience with a similar issue on this machine/controller? Any additional info will gladly be supplied as I'm sure I missed something.

    O0001 (0)
    (T1 D=0.375 CR=0.03 - ZMIN=-0.1 - BULLNOSE END MILL)
    G90 G94 G17 G49 G40 G80
    G20
    G28 G91 Z0.
    G90

    (SAMPLE)
    T1 M06
    S7655 M03
    G54
    M08
    G05 P10000
    G00 X-0.1475 Y-1.705
    G43 Z0.6 H01
    G00 Z0.2
    G01 Z-0.1 F30.6
    X1.03 F122.5 (THIS WHERE IT SLOWS)
    G03 Y-1.545 J0.08 (SPEEDS UP HERE)
    G01 X0.04
    X-0.1475
    G00 Z0.6
    G05 P0

    M09
    G28 G91 Z0.
    G49
    G28 X0. Y0.
    M30
    %

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    Default Re: Robodrill slowing down in the wierdest places

    Are you sure G05 P10000 is the proper way to turn on the look ahead? Maybe G05P1

    Try it without the Look Ahead (or whatever they call it) and just for fun put a G1 in front of that slow down line. But really nothing seems wrong. Maybe you have a mechanical or electrical issue.



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    Default Re: Robodrill slowing down in the wierdest places

    Thanks, GentleGiant. I'll try to add the G1 and no HPCC. The machine and post were from previous owner who said the P10000 was required to turn on the old gen HPCC. Does P1 perform the same function? Not needed in this case so will try not using to see if changes.



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    Default Re: Robodrill slowing down in the wierdest places

    The Robodrill control is one of the most advanced things I've ever seen
    There is a "Power and Consumption Monitoring" function that may be on on the Quick side that will limit motor current to maintain a certain Kw on the machine that will slow it down.
    Also check what "Machining Level" you are at as it's modal. M31 Lxx is the code. L1 - L6.
    These are explained in the Robodrill manual B-85224EN.



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    Default Re: Robodrill slowing down in the wierdest places

    You have smoothing turned on by using P1000

    Attached Files Attached Files


  6. #6

    Default Re: Robodrill slowing down in the wierdest places

    G05 P10000 is HPCC (High-precision contour control) and that comes with a massive amount of parameters. Your machine may be tuned a certain way to slow down before reaching an arc/curve of a certain size or below or a parameter may be set incorrectly causing it to look ahead to the next curve too far in advance. parameters start around 8400 and up for HPCC with RISC.



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Robodrill slowing down in the wierdest places

Robodrill slowing down in the wierdest places

Robodrill slowing down in the wierdest places