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Flexible animated parts in assemblies (actually working!) (well, really more of a workaround...)

alnisalnis Member, Developers Posts: 442 EDU
in Using Onshape
Sneak peek for a tutorial I'll be making soon, just had to share when I figured this out :smiley:


Note that the trick used here is not suitable for production models or anything like that. Rather, this is just to make things look good where assembly structure and performance are not priorities.

This is all using existing built-in functionality that's been available for years, with no extensions, add-ins, or anything else!
Student at University of Washington | Get in touch: [email protected] | My personal site: https://alnis.dev
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Comments

  • NeilCookeNeilCooke Moderator, Onshape Employees Posts: 4,791
    Spill the beans!
    Director, Technical Services, EMEA 
  • alnisalnis Member, Developers Posts: 442 EDU
    @NeilCooke will do! Just need to find the time to clean up the strategy and record the video

    It involves linear relations and creative use of patterns to generate a bunch of 3D "frames"/snapshots of the flexible model, then swapping out the model for each step of the animation by using a carefully chosen number of animation steps and slider relation ratio
    Student at University of Washington | Get in touch: [email protected] | My personal site: https://alnis.dev
  • MichaelPascoeMichaelPascoe Member Posts: 1,275 PRO
     :o 

    Learn more about the Gospel of Christ   (Click here)
  • Evan_ReeseEvan_Reese Member Posts: 1,769 PRO
    Yeah, spill the beans, Alnis!
    Evan Reese / Principal and Industrial Designer with Ovyl
    Website: ovyl.io
  • john_mcclaryjohn_mcclary Member, Developers Posts: 3,781 PRO

  • john_mcclaryjohn_mcclary Member, Developers Posts: 3,781 PRO
    alnis said:
    @NeilCooke will do! Just need to find the time to clean up the strategy and record the video

    It involves linear relations and creative use of patterns to generate a bunch of 3D "frames"/snapshots of the flexible model, then swapping out the model for each step of the animation by using a carefully chosen number of animation steps and slider relation ratio
    I don't know what you mean by 'swaping out the model' are you just taking a bunch of (pre-rendered) models that are sitting somewhere offscreen or obstructed and using the linear relation to scroll juggle them in sequence???

  • alnisalnis Member, Developers Posts: 442 EDU
    edited January 2022
    @john_mcclary yes, exactly like that! They are spaced far apart and the linear relation moves from one to the next by the exact amount needed to "replace" it in the model. Of course, this produces a lot of extra junk in the model, but I'm working on figuring out a workflow to keep things as clean & simple as possible using configurations
    Student at University of Washington | Get in touch: [email protected] | My personal site: https://alnis.dev
  • john_mcclaryjohn_mcclary Member, Developers Posts: 3,781 PRO
    Yea, that's cool

    here's my guess at what you did in 5 frames (so it's choppy, but I'm too lazy to mate up a bunch of frames right now..)


  • S1monS1mon Member Posts: 1,697 PRO
    @alnis
    Any updates on this technique? Will we see anything about it at Onshape live?
  • alnisalnis Member, Developers Posts: 442 EDU
    @S1mon not at Onshape live, sorry :disappointed: maybe earlier?? Coursework really caught up with me but maybe I can procrastinate on some homework this weekend by making the tutorial...
    Student at University of Washington | Get in touch: [email protected] | My personal site: https://alnis.dev
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