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    Help drawing an off-center funnel

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    • I Offline
      Involute
      last edited by

      I'd like to draw something like this: http://tinyurl.com/h9rqwau. I can do what I show in the attachment, but the blue inner surface you see is just the back of the outer surface. I can't figure out how to create a true inner surface to give the funnel some thickness. Any tips? Thanks.


      Funnel.jpg

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      • HornOxxH Offline
        HornOxx
        last edited by

        Hi - One possibility would be to use CurviLoft to connect the outer circles and the inner circles to one outer and one inner surface first...
        http://sketchucation.com/forums/viewtopic.php?p=248195#p248195


        curviloft.jpg


        Funnel hx.skp

        never trust a skinny cook

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        • pbacotP Offline
          pbacot
          last edited by

          One Idea is use a funnel that is scaled copy of the outer funnel. Scale by scaling the top and bottom aperture (circle) and the sides should end up even thickness between.

          Another idea is draw a symmetrical funnel (Draw a full thickness profile and lathe it with follow me). Then offset it-- I mean move one end or the other horizontally. this might not be as accurate but may serve your needs. it would be easy to add that lip in the profile as well.

          MacOSX MojaveSketchUp Pro v19 Twilight v2 Thea v3 PowerCADD

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          • I Offline
            Involute
            last edited by

            Thanks for the tips.

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            • A Offline
              autarchos
              last edited by

              The Joint push pull extension is also a great way to add thickness.

              Sent from my iPhone using Tapatalk

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              • V Offline
                ValmontR
                last edited by

                You can also draw the whole thing quickly with the Spirix plugin.

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