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HARSHVARDHANPAN1-Visitor
1-Visitor
July 24, 2014
Question

make spiral hexagon

  • July 24, 2014
  • 2 replies
  • 10817 views

do any one help me to make hexagonal spiral profile with use of equation or any other method.

      2 replies

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      BrianMartin13-Aquamarine
      13-Aquamarine
      July 24, 2014

      Do you mean something like this?

      hex_spiral.png

      I used a curve driven by a cylindrical equation and a swept blend. There are other ways... for instance you could use the trajpar variable to perform a variable section sweep while rotating the hex shape.

      In fact, I like that second way better (it's more flexible and robust)... but no one ever uses a Swept Blend so I figured I'd dust it off for this example. I've attached a file to play with (Creo 2 format).

      Thanks..

      -Brian

      PS: Edit the curve equation. By changing the value in red in the line that says: theta = t * 360 * 1 you can add more turns. For example, change the line to theta = t * 360 *5 to add 5 turns.

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      HARSHVARDHANPAN1-VisitorAuthor
      1-Visitor
      July 25, 2014

      brian I need to make a spring like given belowhexagonal+spring.png

      M
      MartinHanak24-Ruby III
      24-Ruby III
      July 25, 2014

      Hi,

      I guess you have to generate the hexagonal trajectory outside of Creo into so called IBL file. Then you will be able to create a curve in Creo using this IBL file.

      Inside attached TXT file you will find a link to web page containing info about IBL.

      Martin Hanak

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      HARSHVARDHANPAN1-VisitorAuthor
      1-Visitor
      July 25, 2014

      martin I am first time heard about IBL do u tell me how do i create profile using IBL

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      BrianMartin13-Aquamarine
      13-Aquamarine
      July 25, 2014

      I would not go with an IBL, this entire thing can be done in Creo. John's suggestion is good. Amy of Vladimir Palffy's work with trajpar and variable section sweeps is also applicable. I'm on the road at the moment but I will link to some pertinent threads when I get to my computer.

      Thanks,

      Brian

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      BrianMartin13-Aquamarine
      13-Aquamarine
      July 25, 2014

      Ah... like I said... go to Vladimir Palffy's blog. You can pretty much make anything into a spring using his technique. It's a bit of what John Pryal suggested with the addition of a straight curve. The technique uses a variable section sweep and the trajpar variable to create a complex curve...

      http://communities.ptc.com/blogs/vpalffy/2011/02/09/user-defined-springs

      All the credit goes to Vladimir... he's quite the Creo genius.

      Thanks...

      -Brian

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