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Thread: Coordinate System Rotation And Planes problem!

  1. #21
    Member christinandavid's Avatar
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    Default Re: Coordinate System Rotation And Planes problem!

    Quote Originally Posted by amir_nop View Post
    Isn't this moving on all 3 axes????
    The machine does it easily!
    What's the difference?
    Attachment 330474
    Hi Amir,

    Just to clarify, the drawing you attached looks like it is showing a part of a helical slot. The circular component is true to the xy plane. The z motion is a separate linear motion.

    So in the three standard working planes, an arc, even as part of a helix, is only handled by two axes. Arcing in a non-standard working plane is a feature more commonly used on 5-axis machines I suppose. It could be an optional extra on your control but probably not worth paying for.

    So how are you going to program it?

    DP



  2. #22
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    Default Re: Coordinate System Rotation And Planes problem!

    Quote Originally Posted by christinandavid View Post
    Hi Amir,

    Just to clarify, the drawing you attached looks like it is showing a part of a helical slot. The circular component is true to the xy plane. The z motion is a separate linear motion.

    So in the three standard working planes, an arc, even as part of a helix, is only handled by two axes. Arcing in a non-standard working plane is a feature more commonly used on 5-axis machines I suppose. It could be an optional extra on your control but probably not worth paying for.

    So how are you going to program it?

    DP
    Thank you for the information, actually I kinda gave up, it really annoyed me! I was working on it for a whole week standing up to machine and change every line more than 10 times.
    And I'm not convinced yet.. how can our controls be that weak..??
    Anyway there is a way to get it to work and it is dividing arcs to polylines, a little macro could do that easily, maybe someday I wrote it. not on the mood and so busy at the moment :/



  3. #23
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    Default Re: Coordinate System Rotation And Planes problem!

    It looks like a simple helical interpolation. Option on some machines.



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    Default Re: Coordinate System Rotation And Planes problem!

    I've tried your sample with my CNC and I've got this result:

    Coordinate System Rotation And Planes problem!-001-jpg

    something wrong in program ?

    Attached Thumbnails Attached Thumbnails Coordinate System Rotation And Planes problem!-001-jpg  
    Last edited by shineworld; 09-20-2018 at 04:42 AM.


  5. #25
    *Registered User* Sythe179's Avatar
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    Quote Originally Posted by shineworld View Post
    I've tried your sample with my CNC and I've got this result:

    Coordinate System Rotation And Planes problem!-001-jpg

    something wrong in program ?

    I'd suggest looking into g17-g18-g19 commands for your specific use.

    CNC lathes by default typically arc with the X axis.
    So changing the selection might do the trick.
    Either that, or just code it manually



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Coordinate System Rotation And Planes problem!

Coordinate System Rotation And Planes problem!