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electric current

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aniamtion visualization electric current
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  • target-photo
    target-photo last edited by Dr. Sassi Jan 20, 2024, 6:24 AM Nov 20, 2023, 2:43 PM

    Hello from the Swiss (with repaired mitral valve)
    I would like to represent electric current (non compressible) by little spheres moving in a tube. A resistance will be represented by a bottleneck in the middle of the tube. The whole system must be totally filled with particles at staring point.
    When the particles are 'pushed' (emitted) from the left, all particles should move without overlapping to the right (and then be killed). I tried different methods (even fluid sim)... but no good result. What system is the easiest to realize this.
    Grazie dottore
    Henri

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    • Dr. Sassi
      Dr. Sassi last edited by Dr. Sassi Nov 21, 2023, 5:30 AM Nov 21, 2023, 5:29 AM

      Bon Giorno, Henri!

      We can exclude this version, but I will share it to get more feedback.
      CV4_2024_drs_23_ANel_01.c4d

      Here is a sketch with a "package" of spheres that moves based on a force field, accelerates in the bottleneck, and slows down. (Do I memorize this correctly from my two-year education in electricity/electronics? It is four decades back in time.)
      You can change the speed in the Force Field> Spline. direction > Layer
      CV4_2024_drs_23_SIel_01.c4d

      The killing of electrons needs a trick: the move (eyeballing) of the "Linear Field".

      Going by your description, the first and last frames might not be helpful.

      Let me know if that works for you.

      Enjoy

      Dr. Sassi Sassmannshausen Ph.D.
      Senior Trainer, Maxon Master Trainer, L&D - Strategist
      Cinema 4D mentor since 2004, Member of VES, DCS.

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      • target-photo
        target-photo last edited by Nov 21, 2023, 4:59 PM

        Hello signore Sassi
        You are incredible! ANel is technically what I was looking for. I needed some time to understand what you did. I will not exclude this version. This solution is fast, gives a realistic visualization of the electron flow.
        Now I have to work on this, to make a closed circuit with this b-spline (coming out of a cube(source)... passing the bottleneck ... and going back to the source on a parallel line, to close the circuit.
        I expected a solution with thinking particles... but this blowed my mind.
        I will keep you informed.
        Grazie mille

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        • Dr. Sassi
          Dr. Sassi last edited by Nov 21, 2023, 7:12 PM

          Thanks a lot for the feedback, Henri.

          The first one uses short comping of splines and animation to its advantage, such that the distance between points is crucial for the speed.

          The Force Field has a lot of potential, and adjusting the "force" along a spline is very powerful.
          More about Force Field can be found on our team's many shows over on YouTube.
          https://www.youtube.com/c/MaxonTrainingTeam

          Let me know if there is anything else. I have some time off (Holiday here), but, of course, I have an eye on the forum.

          My best wishes for your project

          Dr. Sassi Sassmannshausen Ph.D.
          Senior Trainer, Maxon Master Trainer, L&D - Strategist
          Cinema 4D mentor since 2004, Member of VES, DCS.

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          • target-photo
            target-photo last edited by Dr. Sassi Dec 11, 2023, 8:08 PM Dec 11, 2023, 3:55 PM

            reHello Dr. Sassi
            I am using your CV4_2024_drs_23_ANel_01.c4d... now my problem: If I keyframe the velocity of the 'particles' (Cloner) to zero at frame 50, the particles will stop on frame 51... but first (at frame 25 (half of way)) they reverse direction 😞
            I could not find out, what to do, to avoid this. Please give me a hint, I am lost.

            PS
            What I need: positive speed == particles move to the right / negative speed == particles move to the left 🙂

            Best wishes
            Henri

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            • Dr. Sassi
              Dr. Sassi last edited by Dr. Sassi Dec 11, 2023, 8:10 PM Dec 11, 2023, 8:08 PM

              Hi Henri.

              Would you mind trying this: (In the file CV4_2024_drs_23_ANel_01.c4d as delivered.)

              Cloner> Object> Rate + and - values are possible.

              login-to-view
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              All the best

              Dr. Sassi Sassmannshausen Ph.D.
              Senior Trainer, Maxon Master Trainer, L&D - Strategist
              Cinema 4D mentor since 2004, Member of VES, DCS.

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              • Dr. Sassi
                Dr. Sassi last edited by Dec 11, 2023, 10:05 PM

                P.S.:

                A ten second screen capture
                https://stcineversityprod02.blob.core.windows.net/$web/Cineversity_Forum_Support/2023_Clips_DRS/left-right_Rate.mp4

                Dr. Sassi Sassmannshausen Ph.D.
                Senior Trainer, Maxon Master Trainer, L&D - Strategist
                Cinema 4D mentor since 2004, Member of VES, DCS.

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                • target-photo
                  target-photo last edited by target-photo Dec 11, 2023, 10:56 PM Dec 11, 2023, 10:49 PM

                  hi again
                  yes I tried this... + goes right / - goes left... ok but if I want to keyframe the rate (in German version 'velocity') everything goes wrong. Please try to stop your particles at frame 50 with a keyframe rate 0...
                  the rate goes from +26 to 0 (all positive) but the particles revers 😞
                  kind regards

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                  • Dr. Sassi
                    Dr. Sassi last edited by Dr. Sassi Dec 12, 2023, 12:23 AM Dec 12, 2023, 12:23 AM

                    Hi Henri,

                    Try this one; it uses only the Offset (the Starting point for the Offset should be greater than zero, so the Offsett Variation can build up). No Rate.

                    CV4_2024_drs_23_ANel_02.c4d

                    All the best

                    Dr. Sassi Sassmannshausen Ph.D.
                    Senior Trainer, Maxon Master Trainer, L&D - Strategist
                    Cinema 4D mentor since 2004, Member of VES, DCS.

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                    • target-photo
                      target-photo last edited by Dec 12, 2023, 10:12 AM

                      you made my day!

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                      • Dr. Sassi
                        Dr. Sassi last edited by Dec 12, 2023, 3:57 PM

                        Thanks a lot, Henri, you too! 🙂

                        My best wishes for your project

                        Dr. Sassi Sassmannshausen Ph.D.
                        Senior Trainer, Maxon Master Trainer, L&D - Strategist
                        Cinema 4D mentor since 2004, Member of VES, DCS.

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                        • Dr. Sassi
                          Dr. Sassi last edited by Jan 17, 2024, 7:03 PM

                          Please no new topics in older threads.

                          I have moved your posts
                          https://cineversity.forums.maxon.net/topic/900/model-a-membrane

                          Dr. Sassi Sassmannshausen Ph.D.
                          Senior Trainer, Maxon Master Trainer, L&D - Strategist
                          Cinema 4D mentor since 2004, Member of VES, DCS.

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                          • Locked by  Dr. Sassi Dr. Sassi Jan 17, 2024, 7:03 PM
                          • Unlocked by  Dr. Sassi Dr. Sassi Jan 20, 2024, 6:23 AM
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