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IndustryArena Forum > MetalWorking Machines > Haas Machines > Haas Mills > Mill stops feeding, but spindle is still spinning
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  1. #1

    Join Date
    Jun 2021
    Posts
    2

    Mill stops feeding, but spindle is still spinning

    I have a 10 year old VF-2, and I'm using Fusion 360 for my CAM. When I went to run a simple Facing operation, my mill runs the program until line N120. Then it stops feeding. The spindle spins, the mill is not feeding, and there are no error messages. This recently started happening on new programs, but I haven't seen it on old programs. (I haven't run many old programs since this started though.)

    Here is my code:

    %
    O01001 (StrBH SU2 R615d)
    (Using high feed G1 F500. instead of G0.)
    (T7 D=0.375 CR=0. - ZMIN=-0.485 - flat end mill)
    N10 G90 G94 G17
    N15 G20
    N20 G53 G0 Z0.

    (Face1)
    N25 T7 M6
    N30 S10000 M3
    N35 G54
    N40 M8
    N45 G1 X0.9937 Y-0.6335 F500.
    N50 G0 G43 Z0.6 H7
    N55 G0 Z0.2
    N60 G1 Z-0.0475 F30.
    N65 G18 G3 X0.9562 Z-0.085 I-0.0375 K0.
    N70 G1 X0.75
    N75 X-0.75
    N80 G17 G2 Y-0.333 I0. J0.1502
    N85 G1 X0.75
    N90 G3 Y-0.0326 I0. J0.1502
    N95 G1 X-0.75
    N100 G2 Y0.2679 I0. J0.1502
    N105 G1 X0.75
    N110 G3 Y0.5683 I0. J0.1502
    N115 G1 X-0.75
    N120 G18 G3 X-0.7875 Z-0.0475 I0. K0.0375
    N125 G0 Z0.2

    N425 G0 Z0.6

    N430 M5
    N435 M9
    N440 G53 G0 Z0.
    N445 X0.
    N450 G53 G0 Y0.
    N455 M30
    %

    Any help is appreciated.

  2. #2
    Registered
    Join Date
    May 2011
    Posts
    298

    Re: Mill stops feeding, but spindle is still spinning

    Which post processor are you using in Fusion?


    Sent from my iPhone using Tapatalk

  3. #3

    Join Date
    Jun 2021
    Posts
    2

    Re: Mill stops feeding, but spindle is still spinning

    Quote Originally Posted by Turbo442 View Post
    Which post processor are you using in Fusion?


    Sent from my iPhone using Tapatalk
    I'm using the generic HAAS pre-ngc post processor.

  4. #4
    Community Moderator Jim Dawson's Avatar
    Join Date
    Dec 2013
    Posts
    4922

    Re: Mill stops feeding, but spindle is still spinning

    Try adding another M5 before the M30 and see what happens. From what you describe, it sounds like the controller is ignoring the M5 command, I've never seen that before.
    Jim Dawson
    Sandy, Oregon, USA

  5. #5
    Member
    Join Date
    Jan 2005
    Posts
    12527

    Re: Mill stops feeding, but spindle is still spinning

    Quote Originally Posted by KJMill View Post
    I have a 10 year old VF-2, and I'm using Fusion 360 for my CAM. When I went to run a simple Facing operation, my mill runs the program until line N120. Then it stops feeding. The spindle spins, the mill is not feeding, and there are no error messages. This recently started happening on new programs, but I haven't seen it on old programs. (I haven't run many old programs since this started though.)

    Here is my code:

    %
    O01001 (StrBH SU2 R615d)
    (Using high feed G1 F500. instead of G0.)
    (T7 D=0.375 CR=0. - ZMIN=-0.485 - flat end mill)
    N10 G90 G94 G17
    N15 G20
    N20 G53 G0 Z0. ( This line should not be there for a Haas control )
    (Face1)
    N25 T7 M6
    N30 S10000 M3
    N35 G54
    N40 M8
    N45 G1 X0.9937 Y-0.6335 F500.
    N50 G0 G43 Z0.6 H7
    N55 G0 Z0.2
    N60 G1 Z-0.0475 F30.
    N65 G18 G3 X0.9562 Z-0.085 I-0.0375 K0. ( ????? )
    N70 G1 X0.75
    N75 X-0.75
    N80 G17 G2 Y-0.333 I0. J0.1502
    N85 G1 X0.75
    N90 G3 Y-0.0326 I0. J0.1502
    N95 G1 X-0.75
    N100 G2 Y0.2679 I0. J0.1502
    N105 G1 X0.75
    N110 G3 Y0.5683 I0. J0.1502
    N115 G1 X-0.75
    N120 G18 G3 X-0.7875 Z-0.0475 I0. K0.0375 ( ?????? )
    N125 G0 Z0.2

    N425 G0 Z0.6

    N430 M5
    N435 M9
    N440 G53 G0 Z0.
    N445 X0.
    N450 G53 G0 Y0.
    N455 M30
    %

    Any help is appreciated.
    You have more than ( 1 ) G18 call what is this being used for, what are you facing

    What's the G18 there for if you where facing that should not be in the line N120 that whole line would be in correct for facing something , the whole program is no very well formatted
    Mactec54

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