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BIM Troublemaker: Noah's Loaf - Curtain Panel Goodness

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    BIM Troublemaker: Noah's Loaf - Curtain Panel Goodness

    This step took some tenacity...But tenacity starts with "T" which stands for Trouble!

    First step is to do this with a curtain panel by pattern:

    If you don't know what it is, shame on you! Go read here:

    Au Bon Panel

    Thank you Bob-Man and Shaggy

    So with that panel pattern in my back pocket, i could go ahead and start screwing around with my base model from last time:

    For what became my first attempt (thought this would be easy), I started by picking the edges between each rib and hitting the CREATE FORM button.

    I did this several times to fill the whole boat

    And then divided the surface and applied the appropriate Curtain Panel Pattern:

    It looked okay at first blush, but upon closer inspection, the shell edges weren't squaring up right. Actually, they looked downright sloppy:

    I'd rather be accused of fastidiousness than having too much time on my hands...Semantic argument for sure....nonetheless i tried again.

    This time I took the "Tedious Brute Strength" approach. First off, i hosted a bunch of reference points along the shell profile:

    And repeated this process for all 3 profiles and it worked exactly as i wanted:

    Then I hosted a parameter driven rectangle on each reference point. CREATE FORM again and voila!

    It worked as expected,

    but 2 problems remained:
    1) All my lengths were now curved and i wanted straight segments, broken at each joint for scheduling and measurement
    2) It was a damn lot of work and i got bored

    Okay...Trial #3!

    Because I set up the original Curtain Panel Pattern using the correct point orientation, I realized i could do the whole shell in one shot. The trick was going to be to use DIVIDE BY INTERSECTION in order to control the break points:

    My segments divide out properly. If i did some work with reporting parameters, I could get some cool data out of this. Implanting MODEL LINES in the curtain panel would give me a structural stick model too!

    The joints go straight through which i am not overly keen on, but i suppose if i wanted it perfect, i could take it into Rhino or ACAD and perform some additional boolean operations...

    yikes....what a day....

    Click here to view the entire blog post.

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