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    How to get from 3D model to 2D construction plans?

    Scheduled Pinned Locked Moved Woodworking
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    • M Offline
      MichelC
      last edited by

      Dave, nice lake, from this distance it looks a bit like the lakes in Northern Italy, but with a larger marina.

      You made me aware of the benefit of using components in stead of groups, if I need to alter the model, the panels on the grid change with it. I hadn't seen that as a benefit, more as a disadvantage.

      Another problem I have is the fuselage sides. In the model they have texture, but zero thickness. In real life they will be 15 mm of 20 mm thick. The connection between decks and sides is not constructable in the way it is in the model now. In reality the sides need to be tapered down to receive the deck edge and the shape of the bulkheads changed perhaps but I don't see a way to model that without thickening up the sides. The sides are single curved, if you look from above, they have a shallow S-curve. I can't push/pull them to a thickness because of this curve. Do you see a way to thicken the sides to real life proportions?

      Michel

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      • Dave RD Offline
        Dave R
        last edited by

        It is a pretty nice lake. Techincally it's a wide area in the Mississippi River.

        So to thicken the skin to represent it's real thickness, you could use Joint Push/Pull. Hit Tab before starting the push/pull operation and choose Thickening. That ought to get you what you need for the skins.

        There are many benefits to using components in your model but the editing thing is huge.

        TTFN

        Dave

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        • M Offline
          MichelC
          last edited by

          Dave, another great tip, the joint push/pull plugin! Many thanks! I should have known this weeks earlier.

          Michel

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          • Dave RD Offline
            Dave R
            last edited by

            At least it exists now for you. A number of years ago, before it was around I drew the hull of the little boat I designed and built as a cradle for my son. I created the thickness by hand. Lots of work.


            http://farm6.staticflickr.com/5218/5383695337_554183f1ac_z.jpg

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            • Rich O BrienR Offline
              Rich O Brien Moderator
              last edited by

              Wow πŸ‘

              That's superb Dave

              Download the free D'oh Book for SketchUp πŸ“–

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              • Dave RD Offline
                Dave R
                last edited by

                What? The lake? I didn't make it.

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                • Rich O BrienR Offline
                  Rich O Brien Moderator
                  last edited by

                  The crib. It's really nice.

                  Download the free D'oh Book for SketchUp πŸ“–

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                  • Dave RD Offline
                    Dave R
                    last edited by

                    Thank you. It was fun to build, too. The planks are clear pine that I resawed and planed to 1/8" thick. It's amazing how strong it is considering how thin the planks are. The worst part was planing the rolling bevels on the planks and the gains at the ends. The planks are so thin, it only took a couple of swipes with the plane to cut them. It was easy to get too much off.

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                    • M Offline
                      MichelC
                      last edited by

                      That's a sweet little swinging bunk!

                      Michel

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                      • Dave RD Offline
                        Dave R
                        last edited by

                        Thank you Michel.

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                        • M Offline
                          MattC
                          last edited by

                          Hi MichelC
                          I think I could help.
                          I am busy with creating tools to make paper scale models in Sketchup.
                          You can see examples how my scripts work here: http://www.screenr.com/user/SketchupPP
                          In fact it covers quite a lot of what you are asking for.

                          One thing that is missing is a nesting algorithm, but it is very complex story.
                          Greets
                          Matt

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                          • C Offline
                            chad3006
                            last edited by

                            I have a related question. Is there a way to export a picture from SU that would eliminate perspective distortions (parts of a model that are further away look smaller), so all visible surfaces of the model in the exported picture keep their β€œtrue” size? For my purposes the model doesn’t have to be unfolded into its various parts, just a flat picture. Does that make sense?

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                            • Dave RD Offline
                              Dave R
                              last edited by

                              Chad, you can set the camera to Parallel Projection. Look in the camera menu. Perhaps that will do what you want? another thing you can do is reduce the "wide angle" distortion by adjusting the field of view. Select the Zoom tool from the Camera toolbar. The measurements box will indicate either an angle of view or a focal length (degrees or mm). You can enter a low angle of view or a higher focal length to reduce the appearance of things receding into the distance.

                              Here's an example:


                              http://farm3.staticflickr.com/2427/5850582777_c4c61b6e7d_z.jpg

                              28mm focal length


                              http://farm3.staticflickr.com/2646/5851134266_e751b1dfff_z.jpg

                              85mm focal length

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                              • C Offline
                                chad3006
                                last edited by

                                Yes! Switching to parallel projection did the trick. Thanks!

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                                • Dave RD Offline
                                  Dave R
                                  last edited by

                                  Cool! πŸ‘

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