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Constrain a Linear Pattern within another object

Discussion in 'Using Alibre Design' started by WillAdams, Nov 23, 2019.

  1. WillAdams

    WillAdams Member

    How do you constrain a Linear Pattern so that it is centered within another object?

    Capture.PNG

    Alternately, how do you set the offset at which an object (say a Linear Pattern) appears from the origin point?
     
  2. idslk

    idslk Alibre Super User

  3. DavidJ

    DavidJ Alibre Super User Staff Member

    Dimension or constrain the seed feature to position it relative to origin (or anything else) - the pattern settings take care of spacing and direction.
     
  4. WillAdams

    WillAdams Member

    Unfortunately, I'm using Atom3D, so scripting is not an option.

    I can't get the Linear pattern centered in the other object, nor can I instantiate how distant it is from the corner of the object it is being cut out of --- how do I do this? Or what is it in the help file which I should (re)read so as to understand how to do this?
     
  5. idslk

    idslk Alibre Super User

    Hello WillAdams,

    i don't know if you can open the file (i do not have Atom)...
    In the file i've made one posssible way (maybe not the best) to center a pattern.
    If you change the dimensions don't forget to choose regenerate all after that...

    Regards
    Stefan
     

    Attached Files:

  6. bigseb

    bigseb Alibre Super User

    What David said. You may need a calculator. Or pencil and paper.
     
  7. WillAdams

    WillAdams Member

    Decided to do an end run around things --- instead of modeling the stock, and removing the pockets only, I drew in the edges/dividers --- it's a bit more awkward and involved in parameterizing, but it does work:

    Capture.PNG
     
  8. oldfox

    oldfox Alibre Super User

    Simple arithmetic to calculate where to place the primary pocket. Draw pocket. Linear Pattern to required numbers and extrude cut.
     

    Attached Files:

    bigseb likes this.
  9. idslk

    idslk Alibre Super User

    Hello colleagues,
    there is nothing else than alibre neccessary to solve this!
    Take a look into the File
    It could be made more elegant if wanted...
    Regards
    Stefan
     
    WillAdams likes this.
  10. oldfox

    oldfox Alibre Super User

    Good morning (afternoon) Stefan.

    Granted.

    Everyone generally uses the methods with which they are most comfortable. So long as the end product is the same.
    I guess that just goes to show that great minds don't necessarily always think alike. :D
     
    WillAdams likes this.
  11. idslk

    idslk Alibre Super User

    Hello Chris,
    ;):D:cool:
    Regards
    Stefan
     
  12. WillAdams

    WillAdams Member

    Last edited: Nov 24, 2019
  13. idslk

    idslk Alibre Super User

    Hello WillAdams,
    What have you changed?

    Have you done a upload_2019-11-24_17-24-53.png ?

    Regards
    Stefan
     
    WillAdams likes this.
  14. WillAdams

    WillAdams Member

    That worked --- that button was hidden under "Generate to Last Feature" --- I'll try to wrap my mind around how the file is put together --- looks like you're doubling the array? So only even numbers of items are possible?
     
  15. idslk

    idslk Alibre Super User

    Hello WillAdams,
    Yes. (If you use a -patterndistance which is the half of the whole you can "fake" odd numbers, but that's not a clean way...)
    It is possible to setup the parametric/part template with the EquationEditor to be able to get odd numbers.
    Also you can calculate the number of possible holes or change the "outer rectangle" in order to the number of holes and so on and on...
    If you ask with a detailed description of your wish, you might get a better fitting answer if needed.
    Regards
    Stefan
     
    WillAdams likes this.
  16. WillAdams

    WillAdams Member

    Eddy So likes this.
  17. NateLiqGrav

    NateLiqGrav Alibre Super User

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  18. Lew_Merrick

    Lew_Merrick Alibre Super User

    I guess my approach is different in that I either (A) "bore" (with Forstner bites hole that are a nominal 1/64 inch larger than the shanks for each size of endmill or (B) make a plastic pipe "case for "sets" of endmills (etc.) that can be closed up with a "pipe cap" bored out for the "set" I may need to carry with me. -- Lew
     

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