n side profile cutter macro for VMC


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Thread: n side profile cutter macro for VMC

  1. #1
    Member kurmay's Avatar
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    Default n side profile cutter macro for VMC

    I write a excel macro for cutting n side for one revolution. Can be improved.



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  2. #2
    Member deadlykitten's Avatar
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    Default Re: n side profile cutter macro for VMC

    hey kurmay, how are you ? that file looks nice

    a vmc does not has the C axis, but only orientation ...

    code shared in this post won't rotate the spindle during the linear movement, but only after; as a result, the spindle rotation and linear movement are not syncronized ( simultaneous ), but occuring one after the other ... this leads to discontinuity, that may break the cutting edge of the tool ? i don't know

    maybe is possible to deliver the part only by moving + orientantion + moving + orientation, if the segments are short, and this may require a precision for the orientation of at least 0.1, if not 0.01 etc ... so far i have never tested the accuracy for the orientation

    however, movement from the video is smooth ... it may be something else ? i thought that a special tool-holder or head-attachement is used, but no, tool is inside an er collet

    maybe is a good idea to contact the one who posted that video / kindly

    Code:
     
        M510 ( cas off )
        M130 ( ignore S : ON  )
    
        G0 X0 Y0
    
            M19 RS =   0
        X10 M19 RS = 180.00001 ( spindle rotates 180* after moving to X10 )
        X20 M19 RS = 180.00002
        X30 M19 RS = 180.00003
        X40 M19 RS = 180.00004
    
        M131 ( ignore S : OFF )
        M511 ( cas on  )
     


    we are merely at the start of " Internet of Things / Industrial Revolution 4.0 " era : a mix of AI, plastics, human estrangement, powerful non-state actors ...


  3. #3
    Member deadlykitten's Avatar
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    Default Re: n side profile cutter macro for VMC

    hi kurmay, that type of machining requires a direct link between " linear axis position " and " spindle phase "

    the closest okuma function to that, available only for lathes, is :
    ... cam function : https://www.okuma.com/cam-options-for-cnc-lathes
    ... custom use of " G88 / G34 " ? mr Wizard seems to have experience with such stuff

    so far i have no clue about such a function also for Okuma mills, and i believe that the machine from the video is "tuned", because a standard machine can not deliver such a sync movement, because the spindle won't turn during axis movement ( thus "spindle orientation" and "axis positioning" can not be executed simultaneously )



    try to split each line of your code in 2 separate lines; as a result, "spindle orientation" and "axis positioning" will be executed one after the other; however, nothing changes if you don't split the line, but at least you are certain about their execution order

    if you wish, pls check attached file : is your xls + 3 more columns / kindly

    we are merely at the start of " Internet of Things / Industrial Revolution 4.0 " era : a mix of AI, plastics, human estrangement, powerful non-state actors ...


  4. #4
    Member kurmay's Avatar
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    Default Re: n side profile cutter macro for VMC

    Hi deadlykitten

    Thank you for development.

    added Zend point and select rotating code
    maximum 10000lines post

    https://www14.zippyshare.com/v/TpRtt8nn/file.html

    https://www.facebook.com/okuma.tuning


  5. #5
    Member deadlykitten's Avatar
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    Default Re: n side profile cutter macro for VMC

    cool, try to make some cookie shapes

    thus divide a complex geometry into simpler entities ?!?!



    each code generated in xls has a huge chance to :
    ... succumb the machine if the resolution is not ok
    ... lead to variable surface rugosity, if the resolution varies

    in image 01 can be seen how much the resolution varies : this means that the toolpath is not uniformly segmented; as a result, tool cutting edge will be subject to more uneven stress, etc

    if you wish, i'll show you how to fix this / kindly

    we are merely at the start of " Internet of Things / Industrial Revolution 4.0 " era : a mix of AI, plastics, human estrangement, powerful non-state actors ...


  6. #6
    Member deadlykitten's Avatar
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    Default Re: n side profile cutter macro for VMC

    we are merely at the start of " Internet of Things / Industrial Revolution 4.0 " era : a mix of AI, plastics, human estrangement, powerful non-state actors ...


  7. #7
    Member kurmay's Avatar
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    Default Re: n side profile cutter macro for VMC

    Hi deadlykitten

    I haven't started studying the infrastructure of Linuxcnc systems yet.



    https://www.facebook.com/okuma.tuning


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n side profile cutter macro for VMC

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