Variable Section Body FS Help

Ian_Taylor
Ian_Taylor Member Posts: 1 EDU
in Community Support
Hi, I am working with the Variable Section Body FS to try and create a serpentine flexure hinge that has a variable width. I am currently running into issues with keeping the section centered around the path line. Does anyone have experience utilizing this feature script and can tell me what I am doing wrong or whether this is possible? Any help would be greatly appreciated.


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Answers

  • steve_shubin
    steve_shubin Member Posts: 1,118 ✭✭✭✭
    @Ian_Taylor

    I don’t know if Variable Section Body is the correct tool for the job

    It is possible to get at least fairly close using the below method

    https://cad.onshape.com/documents/9f54510aebe2cbc5769faf1c/w/8cc55fa152e4857592706d78/e/b5c67b080383d108641a6702




  • steve_shubin
    steve_shubin Member Posts: 1,118 ✭✭✭✭
    edited June 2022
    @Ian_Taylor

    The method that I’m using to taper this shape is based upon the principle of projecting a helix onto a plane to create a sine wave.

    In this case, a portion of the elongated helix, that comes off as part of a very low amplitude sine, when viewed in profile, is extruded to create a tapered surface upon splitting the swept part

    Being as I am only using a portion of one cycle of the sine, well that results in giving a full length single slope taper from one end of the part to the other

    I repeat the same process to create the other tapered side of the part as mirroring or offsetting will not work in this case


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