galton board

posted to: Rigid Body Project

how did the others get the balls nicely lined up on top before the start? mine start falling through immediately

https://youtu.be/XYrKLO9X7a4

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Reply
  • Omar Domenech replied

    The others? You mean people who submitted the exercise? Falling through you mean intersection? 

    2 loves
  • Martin Bergwerf replied

    What did, was to simply put a 'cube' there and then pulled it awayat the beginning of the simulation

    :

    Galton.png

    Also, each time, a ball hits a peg, it should theoretically hit it 'in the middle', so it has a 0.5 chancee of getting deflected left or right.

    Almost everybody places the pegs horizontally too close together:

    Galton_00.png

    2 loves
  • sheila5 replied

    O cool Martin thanks. I cant try that tomorrow. Now a bit beat. I moved the pegs exactly the wrong way then in my second attempt, but now i understand what im supposed to be doing. 

    1 love
  • sheila5 replied

    Ok my second attempt. I don't know why, but when I moved the box at the beginning the balls just hang there so I had to cache to where they were hanging and then change the frames for the rest

    https://www.youtube.com/shorts/IO5RhbpU2eU


    1 love
  • Omar Domenech replied

    Looking good. The one on the far right just got one little ball and the one on the left just two balls. Maybe you can title this "Income Inequality Visualized". 

    1 love
  • sheila5 replied

    Good one Omar :)

    Actually on the right theres more, but because the chest is too deep you can't see them. I don't know how Martin managed to exactly align them good this was more on sight. But thanks Omar 

    the distribution should look like this at the end

    mine looks like this:


  • Martin Bergwerf replied

    Hi Sheila,

    When you look at that drawing, you see the balls hitting a peg, rolling off it to one side and falling straight down. That is not how the balls fall in the simulation.

    You probably could tweak the Settinngs to get the balls to fall like that, but even then, they'd havre to fall one at a time, so they don't interact with each other.

    Looking at your result, you are ver close!, but the peg placement seems to be slightly off for these Settings each ball should hit each peg exactly in the middle and yours seem to favor one side over the other.

    Also, the amount of balls and slits make the effect more (or less) obvious.

    And finally, I spent many hours tweaking the Physics Settings and adjusting the peg placement, to get that result.

    1 love
  • sheila5 replied

    I didn't think of the interaction between the balls. I'll leave it for now so i can progress on the course. But might pick it up later. I don't have your stamina ;)