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    A Chair for Escher

    Scheduled Pinned Locked Moved Woodworking
    23 Posts 8 Posters 1 Views 8 Watching
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    • Dave RD Offline
      Dave R
      last edited by

      I did this at the request of someone on one of the woodworking fora I look at.


      https://live.staticflickr.com/65535/53008136320_a39c8922bf.jpg

      Etaoin Shrdlu

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

        Looks like an ikea chair you put together without instructions. its hurts my eyes if i look too long

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

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        • ntxdaveN Offline
          ntxdave
          last edited by

          One of the bottom rails and rear leg (the one on the left side) needs to be behind the other rails and legs. Dave, that is not like you. You are usually ver accurate/precise with your models. 😍

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          • Dave RD Offline
            Dave R
            last edited by

            @ntxdave said:

            Dave, that is not like you. You are usually ver accurate/precise with your models. 😍

            What? This one is very precisely modeled as intended. I believe M. C. Escher would approve even if it makes Rich's eyes hurt. πŸ˜„

            Etaoin Shrdlu

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            • ntxdaveN Offline
              ntxdave
              last edited by

              Maybe I am having eyesight problems. Look at the front right leg and the top right rail. Am I see things in fron of them that should be behind them?

              Oh well, I have an appointment with my cataract surgeon in August for my annual checkup. Maybe she can resolve the issue. DUH!

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              • BoxB Online
                Box
                last edited by

                Oh dear, I really hope you are making a joke I'm missing.

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                • Dave RD Offline
                  Dave R
                  last edited by

                  @ntxdave said:

                  Oh well, I have an appointment with my cataract surgeon in August for my annual checkup. Maybe she can resolve the issue. DUH!

                  I hope so. You might want to have a look at the work of M. C. Escher. For example this:

                  Screenshot - 6_28_2023 , 10_24_43 AM.png

                  Etaoin Shrdlu

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                  • ntxdaveN Offline
                    ntxdave
                    last edited by

                    OK guys, here is what I see!

                    SketchUcation Chair Model.jpg

                    Maybe I have gone whacko!

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                    • BoxB Online
                      Box
                      last edited by

                      OMG Seriously, have you never heard of Escher!

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                      • Dave RD Offline
                        Dave R
                        last edited by

                        @ntxdave said:

                        OK guys, here is what I see!

                        I worked really hard to make that. Well, not really hard. It isn't hard to do at all but it is intentional.

                        Etaoin Shrdlu

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                        • ntxdaveN Offline
                          ntxdave
                          last edited by

                          @box said:

                          OMG Seriously, have you never heard of Escher!

                          @dave r said:

                          I worked really hard to make that. Well, not really hard. It isn't hard to do at all but it is intentional.

                          Sorry guys. No I have never heard of Escher. I was trying to be honest. If I need to apologize, then that is what I am doing. 😳

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                          • BoxB Online
                            Box
                            last edited by

                            No need to apologise, just google search escher and look.
                            I can't imagine working in any sort of imaged based industry and not be aware of M.C.Escher.
                            Do the search and click the images button, then do the reading.

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                            • ntxdaveN Offline
                              ntxdave
                              last edited by

                              I looked at some of the stuff on the website but did not read at the bottom.

                              Got started in all of this stuff by drawing 3D car wash equipment and layouts. I am pretty naive to some of the stuff you guys share.

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                              • BoxB Online
                                Box
                                last edited by

                                Scroll back up to the image Dave posted, look at the waterfall and how it drops into a 'canal' now follow the canal to see where the water goes.
                                Now model that path.

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                                • ntxdaveN Offline
                                  ntxdave
                                  last edited by

                                  @box said:

                                  Scroll back up to the image Dave posted, look at the waterfall and how it drops into a 'canal' now follow the canal to see where the water goes.
                                  Now model that path.

                                  OK I get it now......... πŸ‘

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                                  • P Offline
                                    pcmoor
                                    last edited by

                                    @dave r said:

                                    @ntxdave said:

                                    Dave, that is not like you. You are usually ver accurate/precise with your models. 😍

                                    What? This one is very precisely modeled as intended. I believe M. C. Escher would approve even if it makes Rich's eyes hurt. πŸ˜„

                                    mine too! so want the correction

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                                    • L Offline
                                      L i am
                                      last edited by

                                      Really nice work Dave. As far as Escher I dont know, he had his ups AND downs though πŸ˜‰

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                                      • P Offline
                                        psylo
                                        last edited by

                                        Hi! Nice work!
                                        Can we see an orbiting animation of the model starting from the right viewpoint? It might help some to understand the trick! πŸ˜‰

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                                        • Dave RD Offline
                                          Dave R
                                          last edited by

                                          It's modeled in the same way it would need to be made in reality. Here's something to show that. Click on the image if the GIF doesn't run.

                                          MCE.gif

                                          I wonder how you might achieve this. I found a quick and easy way. I've been thinking about possible ways to apply the method in a more practical sense.

                                          Etaoin Shrdlu

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                                          • P Offline
                                            psylo
                                            last edited by

                                            Thanks !
                                            It's great to see the method you used. I was actually thinking of a different approach, more along the lines of a perspective trick like this (not mine, found on giphy):

                                            https://media.giphy.com/media/l41YhNbe5to95ghmU/giphy.gif

                                            I think it might be challenging to achieve accurate shadows though...

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