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    [plugins]SP3 alpha2. Win & Mac

    Scheduled Pinned Locked Moved SketchyPhysics
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    • C Offline
      CPhillips
      last edited by

      @platypus5 said:

      I found a glitch

      You can no longer type formulas into the controller for a motor

      Can anyone confirm this? It seems to work fine for me.

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      • P Offline
        Platypus5
        last edited by

        @cphillips said:

        @platypus5 said:

        I found a glitch

        You can no longer type formulas into the controller for a motor

        Can anyone confirm this? It seems to work fine for me.

        mabye I wasn't doing it right. Oh well.

        Another question: In sketchyphysics2, we could increase the mass of an object by grouping it with a bigger version of itself, setting the bigger copy to "ignore" and then hiding it. Now, SP3 sometimes fails to register this hidden mass. I noticed this when I tried to steer a tank using a flywheel; while the bullets (which have this "hidden mass" technique in them) are the same, the cylander in the flywheel group (motor and the cylander) which is set to ignore, spins but doesn't turn the vehicle. What is this inconsistancy? and finally, did what i said make any sense?

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        • C Offline
          CPhillips
          last edited by

          I think I understand but I don't know why. As far as I know that stuff should work the same. Post the model and I will take a look.

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          • MALAISEM Offline
            MALAISE
            last edited by

            Hi Cphillips
            Does still exist a manual even short ?
            I try to make copies from simple models ( 2 box linked with a motor-joint ) but it seems not to be available. Is there a trick ?

            Thanks a lot

            MALAISE

            La Connaissance n'a de valeur que partagée

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            • W Offline
              Wacov
              last edited by

              MALAISE, until SPIV is out copying anything with joints in, or that is connected to a joint, is a bad idea. The simulation will go crazy, and there is no workaround.

              http://sketchup.google.com/3dwarehouse/cldetails?mid=3096a836877fb9af6cd8ad826e9017b8&prevstart=0

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              • MALAISEM Offline
                MALAISE
                last edited by

                Hi Cphillips
                Thanks for that early answer. I'm really fond of this program. ☀
                Cheers
                MALAISE

                La Connaissance n'a de valeur que partagée

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                • ton baetenT Offline
                  ton baeten
                  last edited by

                  Thank you very, very much for making your great utility available for Mac too.
                  Time to get started to learn and use, but........
                  I seem to have a problem, I get an error message restarting SU after download and installation:
                  Error Loading File SketchyPhysics.rb
                  Failed to load /Library/Application Support/Google SketchUp 7/SketchUp/plugins/SketchyPhysics3/dl.bundle

                  SketchyPhysics shows in SU, aswell in the Tool Pallettes, as in the plugins and the icons are available/visible.

                  Any ideas to solve this problem?

                  greetings,
                  Ton

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                  • X Offline
                    xrok1
                    last edited by

                    any thoughts on adding some type of joint strength? for example a table (legs attached with joints)when dropped from 10' for example, would cause the joints to break thus allowing the legs to go their seperate ways. 😄

                    “There are three classes of people: those who see. Those who see when they are shown. Those who do not see.”

                    http://www.Twilightrender.com try it!

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                    • P Offline
                      Platypus5
                      last edited by

                      @cphillips said:

                      I think I understand but I don't know why. As far as I know that stuff should work the same. Post the model and I will take a look.

                      Sorry I did not get back to you earlier. Here is a good example of what I am talking about. The flywheel that is on "ignore" will not influence the cube it is attacthed too. It should because of the mass, but it doesn't. However, the flywheel that is NOT ignored has a significant effect on its cube.


                      a glitch I found

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                      • W Offline
                        willeykj
                        last edited by

                        @unknownuser said:

                        Thank you very, very much for making your great utility available for Mac too.
                        Time to get started to learn and use, but........
                        I seem to have a problem, I get an error message restarting SU after download and installation:
                        Error Loading File SketchyPhysics.rb
                        Failed to load /Library/Application Support/Google SketchUp 7/SketchUp/plugins/SketchyPhysics3/dl.bundle

                        SketchyPhysics shows in SU, aswell in the Tool Pallettes, as in the plugins and the icons are available/visible.

                        Any ideas to solve this problem?

                        Have you checked the directory mentioned to see if dl.bundle is there?
                        Make sure you installed the SP files and directory into the system library and not your personal library.
                        So it should be in /Library not in /Users/YOU/Library

                        And by the way, this will only work on INTEL macs - not on PowerPC systems... sorry for not mentioning that in the install file

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                        • ton baetenT Offline
                          ton baeten
                          last edited by

                          Kevin,

                          Everything is at the right place, but.........
                          I will have to wait till my new 17" powerbook (intel-based) arrives.

                          Thanks for your info,

                          greetings,
                          Ton

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                          • C Offline
                            CPhillips
                            last edited by

                            @xrok1 said:

                            any thoughts on adding some type of joint strength? for example a table (legs attached with joints)when dropped from 10' for example, would cause the joints to break thus allowing the legs to go their seperate ways. 😄

                            Breakable joints will be in SPIV.

                            1 Reply Last reply Reply Quote 0
                            • S Offline
                              Sgal
                              last edited by

                              I found a new way to make a truster in SP:

                              1. truster option (in UI)
                              2. a magnet linked with a magnetic object
                                and the new solution:
                              3. a gear link between a motor and a slider. Motor is linked to a static object, slider is free.
                                The model shows the three options together.

                              homemade truster alfa.skp

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                              • S Offline
                                shareck
                                last edited by

                                I'm just wondering why are the SP joints stretching. Can you get rid of that? Or maybe could this be set for each joint separately? This stretching is sometimes helpfull but when you try to do things like chain links or tank tracks it's very annoying.

                                1 Reply Last reply Reply Quote 0
                                • I Offline
                                  ianbruce
                                  last edited by

                                  Outstanding! Can't wait to get started. Thanks Again.

                                  1 Reply Last reply Reply Quote 0
                                  • I Offline
                                    ianbruce
                                    last edited by

                                    Everything working amazing well... except I can't seem to rename controllers in the Mac version. I type a new name in the Inspector, but it doesn't seem to take. When I run the simulation, no sliders appear for motors or servos I attempted to rename.

                                    Is this a known bug?

                                    *** SEMI-WORKAROUND***

                                    I just created a new motor and used "slider('NEW NAME')" in the Controller field. That took... but it seems to only work once. I can't rename another motor, or (obviously) use the same name to run 2 motors off one slider.

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                                    • W Offline
                                      willeykj
                                      last edited by

                                      Make sure you hit tab after you make edits in a text field in the inspector.
                                      There is a known bug on the Mac where the web browser will not commit an edit in a text field unless you change the focus out of the field prior to changing the focus away from the web browser window.

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                                      • I Offline
                                        ianbruce
                                        last edited by

                                        That actually seems to work... about half the time, but it's much better than it was.

                                        Thanks, WilleyKJ!

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                                        • N Offline
                                          NewOne
                                          last edited by

                                          @wacov said:

                                          Sorry Phy but using the newton engine it's flat out impossible to have concave hulls. The staticmesh only works because it's... well, static. We're gonna have to live with using complex groups for complex shapes.

                                          Well, I don't know much about physics engines and this kind of programming, but I've seen that the hull is geometry independent. So, I'm thinking: is it possible (for SP4, let's say) to make an algorithm that can generate a dynamic concave hull, by combining convex meshes for the same object? I don't know if multiple meshes are allowed to one object.

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                                          • B Offline
                                            BTM
                                            last edited by

                                            If I understand you correctly, that's already possible; but you have to manually make the convex meshes, and group them together.

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