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    Hinges on a trebuchet

    Scheduled Pinned Locked Moved SketchyPhysics
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    • S Offline
      seanheadrick
      last edited by

      i'm having a problem getting the hinges that are part of the weight group to attach to the arm group.Every time I connect the joint, I get a ghost image of the joint at the same place on the model. Also can I make the mass of the weight vary? I'm kind of a new sketchy physics user so I may be doing something dumb. Thanks

      So I figured out that the hinges were too deep in the group. thanks to CPhillips. But the weight of the counter balance is still an issue. I know all the boxes are essentially shells, so how do I increase the mass of the weight so it will work like it should? Do I need to use a spring or something you think?


      trebuchet.skp

      DO OR DO NOT, THERE IS NO TRY.

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      • S Offline
        seanheadrick
        last edited by

        I should have kept trying before i submitted a question. I reduced the size of the arm section above the fulcrum(launching end) and increased the amount of material below the fulcrum (on the weighted end. I,m still interested to know how weight is determined in models in sp


        trebuchet.skp

        DO OR DO NOT, THERE IS NO TRY.

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        • C Offline
          CPhillips
          last edited by

          No way to adjust weight of a specific object yet.

          I cant try it right now but you might be able to do it by making say 5 copies of the object, place them at the same place and then group. That MIGHT make it 5 times heavier.

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          • S Offline
            seanheadrick
            last edited by

            piling additional copies of the counter balance worked great.I removed the hinges before i started copying so they didn't get buried too deep.Then added new hinges after I regrouped all the copies.Thanks again. I LOVE SP


            trebuchet.skp

            DO OR DO NOT, THERE IS NO TRY.

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            • pilouP Offline
              pilou
              last edited by

              Middle age at the 21 century! 😎

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

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