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    Bending a Helix

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    sketchup
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    • O Offline
      omie
      last edited by

      Hi all,

      Basically what I need to do is apply a "vine" or helix to a curved cylinder. Almost like a vine wrapping around a bending branch. I can manage to make the curving cylinder fine, but creating the helix or vine that wraps around it seems to be an issue.

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      • GaieusG Offline
        Gaieus
        last edited by

        Hi Omie and welcome!

        Would it be a kin of "double helix" (like in the picture; separating the cylined into two stripes) or just simply a single helix wrapped around the bent cylinder?

        What tool did you use to "bend" that cylinder?


        bent helix.jpg


        bent helix.skp

        Gai...

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        • O Offline
          omie
          last edited by

          Hi Gaieus, thanks πŸ˜„

          It would have to be a single helix wrapped around the bent cylinder, so basically the geometric curve radius of the initial cylinder and the helix would be different (if you know what i mean). I simply just drew an arc and used the follow me tool to create the bend in the cylinder

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          • GaieusG Offline
            Gaieus
            last edited by

            Well, this was done differently. I used two plugins:

            • Drawhelix - with which I drew a helix and then added a cylinder along
            • and FredoScale - with which I bent the cylinder afterwards (other plugins like ShapeBender could also be used)
              I would generally not start suggesting plugins in this section of the forums but in this case, drawing a helix around an already curved cylinder would be a pain in the butt.

            Have you used any plugins yet?

            Gai...

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            • O Offline
              omie
              last edited by

              Ahh okay, well draw helix comes in handy, and i tried to use shape bender but for some reason i keep ending up with deformed shapes.. ill give fredoscale a go and let you know how it turns out. thanks πŸ˜„

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              • O Offline
                omie
                last edited by

                I always seem to get something like this when using shape bender, any idea what i'm doing wrong?

                http://img35.imageshack.us/img35/5177/shapebender.jpg

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                • GaieusG Offline
                  Gaieus
                  last edited by

                  I am not exactly sure what's going on there but from the screenshot it seems that you are not bending your shape along the red axis. Please, watch Chris's video and make sure that initially you place the tube along the red axis. The plugin only works this way.

                  Gai...

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                  • O Offline
                    omie
                    last edited by

                    Ahh thank you so much!! I didn't realize it had to be done on the red axis. Works perfectly!! Saved me hours of pain!


                    http://img821.imageshack.us/img821/7835/bended.jpg

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                    • GaieusG Offline
                      Gaieus
                      last edited by

                      πŸ‘

                      I would reverse the back face of that bluish tube however.

                      Gai...

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                      • pilouP Offline
                        pilou
                        last edited by

                        About intricated helix by this crazzy guy Kito Raupp

                        [flash=560,349:3182fow3]http://www.youtube.com/v/pNTetL3Udkc?fs=1[/flash:3182fow3]

                        Frenchy Pilou
                        Is beautiful that please without concept!
                        My Little site :)

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