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Spring with one tapered section

Discussion in 'Using Alibre Design' started by idslk, Jun 30, 2020 at 4:07 PM.

  1. idslk

    idslk Alibre Super User

    Hello Colleagues,
    i've been asked some days ago by somebody how to make a spring with a tapered section on one end.
    The dimensions are regardsless. It should have an outer diameter from 6 mm, a wire of 1mm and a height of the cylindrical part of 25,5 mm for 14 revolutions. Starting at the one end it should widen up to somewhat about 11mm within a height of 6,5mm.
    So my solution looks like the following.
    First i made a sketch for the wire:
    upload_2020-6-30_22-39-52.png

    after this i made an hexid with the following values
    upload_2020-6-30_22-41-25.png

    For the next step i had to get a value for the angle of the taper. As i'm sitting in front of a CAD program a help sketch should do the job:
    upload_2020-6-30_22-51-35.png

    As i needed the angle of the taper for the next step, i defined it as a parameter:
    upload_2020-6-30_22-53-12.png
    to get an entry in the EquationEditor:

    upload_2020-6-30_22-54-23.png

    The next step was to make a sketch for the tapered section. For this i've selected the upper end face of the springwire and aktivated a new sketch. Here i projected the face as a sketch figure.
    upload_2020-6-30_22-56-22.png

    Now the helix for the taper

    upload_2020-6-30_22-57-51.png

    and here is the use of the taper angle created in the DimHelp_Sketch:

    upload_2020-6-30_22-59-43.png

    and this is the result:

    upload_2020-6-30_23-2-8.png


    Comments are welcome;)

    Regards
    Stefan
     

    Attached Files:

    oldfox, NateLiqGrav and HaroldL like this.
  2. HaroldL

    HaroldL Alibre Super User

    I just saw an old tutorial on the Cadalyst web site that is similar to this.
    You should post this in the Tips and Tricks section.
     
  3. NateLiqGrav

    NateLiqGrav Alibre Super User

    I can hear the sound it makes when I kick it with my foot.
     
    OTE_TheMissile likes this.
  4. oldfox

    oldfox Alibre Super User

    @Stefan
    Nice job. Like most other things in life, it's really simple when you know how. Thanks.;)

    @NateLiqGrav
    I had that same issue. Very annoying, so I installed a noise suppressor on the springs. Now all I hear is a poof..f..f..f..f..f:cool:
     

    Attached Files:

  5. OTE_TheMissile

    OTE_TheMissile Alibre Super User

    Like an old Volkswagen revving up? :D
     

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