3 Pendulum Harmonograph

Three pendulum harmonograph in action.

[@raykent3211]

I love the magnetic sphere coupling.

[@ayaan5540]

It's an absolutely genius idea. I made one of these harmonographs last year and the friction was so bad that the drawing stopped before it even drew a recognizable pattern. After installing this coupling, the drawings were absolutely beautiful and incredibly intricate.

[@langschaft01]

@@ayaan5540 Hi Ayaan, tried this recently as well but friction is still to high to let the pendulums swing like in Nick's video. Any idea, what could be done wrong? Maybe the weight of the horizontal traverses is to high or the pendulum weights are to small (1.25kg each). Thanks for some ideas.

[@Likeaudio]

This is the best use of time I've seen on KZbin in a while! Thanks for building kudos for sharing

[@Bloodwyn1756Swagger]

4:33 see the image stabilizer in action. It warps the backgound, because it thinks the cam is moving.

[@user-tn5us2tp5j]

Чёртов гений! Превосходно

[@bronzewand]

cool accent, somewhere between english and american!

[@alvarobyrne]

Nuts!

[@meinereiner7777]

Hallo, wie hast du das gebaut? Wie kann die Blatthalterung rund schwingen, das kann man nicht genau sehen wie das gebaut wurde. Echt tolle Idee!

[@punman5392]

Wow the image stabilization is strong in this vid

[@MrNandiuxx]

This is awesome

[@FanTam5320]

Beautiful! Do you provide the plans for making this myself?

[@alchemy1]

For some reason you didn't mention how the rod with the drawng pad on it can rotate in circular manner.

[@pamelag7553]

Why not sell the art online? They are unique.

[@salaciousBastard]

I wonder is there any way to combine a harmonograph and a 3D printer?

[@etjonesoregon]

Have you tried adding weight to the top of the pendulum poles to increase mass to increase swing time?

[@MrThe1234guy]

Good stuff what kind of red pen is that anyways would it work with basically any ink pen?

[@serginx]

How do you did it?

[@joegibbs6077]

Hi, Could you please advise on where to buy the magnetic balls from,

[@codi5248]

Would you happen to be selling these pieces?

[@user-gw4lz9ze8f]

Здравствуйте как у вас держатся маятники на основании?

[@user-gw4lz9ze8f]

+Nick Gilmour

[@user-gw4lz9ze8f]

@nickgilmour6835

[@user-gw4lz9ze8f]

Hello, how do you keep the pendulums on the base?

[@user-gw4lz9ze8f]

+Nick Gilmour

[@user-gw4lz9ze8f]

@nickgilmour6835

[@Yisus3000]

Hi Nick, I have built my own one and would like to ask you a few question, do you have any email where I could email you pls? Regards

[@onosik]

How much weight you use on each pendulums?

[@nickgilmour6835]

I used 15 pounds, about 7 kilograms, on each pendulum. You want to ensure that you can adjust the weights up and down on the pendulum to change the frequency or period of each pendulum. Have fun and I hope this is helpful.

[@IndurdutRamdewor]

+Nick Gilmour but the period of pendulum depends on its length only. Period of pendulum, T = 2π√L/g L : length of pendulum g : acceleration due to gravity

[@nickgilmour6835]

+Indurdut Ramdewor , agreed! The weight does not need to be changed to adjust the period, only it's position up or down on the shaft of the pendulum, which in effect changes the length of the pendulum. Thank you for the equation, most useful.

[@IndurdutRamdewor]

+Nick Gilmour okkkkkkkkkkkkk, now i get it ;)