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IndustryArena Forum > CAM Software > GibbsCAM > helical milling
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  1. #1
    Join Date
    Apr 2005
    Posts
    6

    helical milling

    Hi everybody, Im new to cnc zone.com so be gentle.
    Has anybody noticed that when using the helix option when milling a bore. That when you process the code it puts the cutter comp at the end of the operation. We have a HAAS VF6 and an ancient mazak with mazatrol and the software does the same thing with both of them. So if your milling a 2.25" bore and your using a 2" cutter and you have a .5" line move or the last move before the operation is greater than the difference between cutter and finished hole youu will have one hell of a wreck at the end of the op.


    P.S Im too lazy to manually put the code in the right place.

  2. #2
    Join Date
    Nov 2004
    Posts
    11
    Hi !
    The Helix option is just for entering the pocket you are about to mill thats wy
    gibbs put the cutter comp at the "bottom" of the contour.

    //Otto

  3. #3
    Join Date
    Nov 2004
    Posts
    11
    You can also use the plugin "tapperd thred"
    Select a point in the center and create a tappered thred with zero angle and the pitch is used to set how much you will ramp each rev.
    Try it out, the r-comp works with this.
    Drawback you dont get a full rev at the bottom without som mod.
    //Otto

  4. #4
    Join Date
    Jul 2005
    Posts
    12177
    Quote Originally Posted by hogman
    Hi everybody, Im new to cnc zone.com so be gentle.
    Has anybody noticed that when using the helix option when milling a bore. That when you process the code it puts the cutter comp at the end of the operation. We have a HAAS VF6 and an ancient mazak with mazatrol and the software does the same thing with both of them. So if your milling a 2.25" bore and your using a 2" cutter and you have a .5" line move or the last move before the operation is greater than the difference between cutter and finished hole youu will have one hell of a wreck at the end of the op.


    P.S Im too lazy to manually put the code in the right place.
    I have found it dead easy to get one hell of a wreck if you are too lazy to put the code in the correct place.

  5. #5
    Join Date
    Mar 2005
    Posts
    60
    My experience is with yasnac and fanuc controls and as far as I know you can't have cutter comp. called on a G2 or G3 line which is probably why the cutter comp. is being put at the end of the operation.

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