![]() ![]() The formula only gives me as a result one number: the movement of the pendulum makes the sheet of paper move on two axis (and I would even say 3, judging by the fact that the sheet of paper doesn't stay parallel to the plane). ![]() ![]() However, I don't think this is what I need. So, how can I add the third pendulum (the one with 2 degrees of freedom)? This formula can compute the position of a rod connected to a pendulum with two degrees of freedom: I can then use it a second time with different values to obtain the position of the pen on the y axis. The result of this formula will give me the position of the pen on the x axis. (t = time, f = frequency, p = phase, d = damping, a = amplitude) ![]() I'm currently able to simulate the movement of a pen attached to just 2 pendulum (with 1 degree of freedom each) using this formula I'm trying to create a simulation of a three pendulum rotary harmonograph, the one you can see in action in this video or in these instructions.Īs you can see in the video, there are 2 pendulum with 1 degree of freedom each (one axis of movement) plus 1 pendulum with 2 degrees of freedom (the one in the middle, holding the sheet of paper). ![]()
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