Now write a set of parametric equations that describe these curves. X = f(t) and Y = f(t). Take into account the mass of the pendulum bobs and the initial displacement of the pen and the table.
You need very heavy weights, about 50 pounds, each. Yes, seriously, THAT much. The frequency is determined by the length of the arm. The duration of the total swing time is determined by the weight. Heavy weights are less influenced by the friction of the air and hinges. Therefor, improve on the hinges (minimal friction) and increase the weight (momentum). If you can adjust the height of the weights, you can add an interesting variable (swing speed) to this machine. You will love it !!
It runs down too quick. Needs better "bearings". Pro versions use a knife blade that each pendulum rocks back and forth on. Virtually no friction. Longer pendulums help, too.
This is a Lissajous mechanism.
nice
rakeshlovethis 1 month ago
That is soooooo cool
Dannnneh 2 months ago
Now write a set of parametric equations that describe these curves. X = f(t) and Y = f(t). Take into account the mass of the pendulum bobs and the initial displacement of the pen and the table.
colt4667 2 months ago
@colt4667 Nice joke dude
flaterik92 1 month ago
@colt4667 Could be easy, without the fuckin' friction
flaterik92 1 month ago
3:41 Ass
SteZooNeR 3 months ago
3:50 looks like an ass
Harmistandar 3 months ago
3:42 lol it looks like someone photo copied their butt
billdsafdsad 4 months ago 7
@billdsafdsad LOL
TheAndrewj96 4 months ago
Okay... you know why it's skipping? Because, the pen needs to be tilted a little bit.
blanknot 4 months ago
after that beautiful woman's voice it made a real pretty one :)
lolman89 5 months ago
how about a different pen
micktrainor92 6 months ago
Comment removed
lawrenceraday 8 months ago
You need very heavy weights, about 50 pounds, each. Yes, seriously, THAT much. The frequency is determined by the length of the arm. The duration of the total swing time is determined by the weight. Heavy weights are less influenced by the friction of the air and hinges. Therefor, improve on the hinges (minimal friction) and increase the weight (momentum). If you can adjust the height of the weights, you can add an interesting variable (swing speed) to this machine. You will love it !!
telescopereplicator 1 year ago
It runs down too quick. Needs better "bearings". Pro versions use a knife blade that each pendulum rocks back and forth on. Virtually no friction. Longer pendulums help, too.
TheMrBlinx 1 year ago
bigger weights?
TristanHoornenborg 1 year ago