What’s the big circle on my wall?
What’s the big circle on my wall?

cool hey guys Devin here with make anything now a lot of you in previous videos have seen this giant disk on the wall and you’re asking me what that thing is. Makes sense, it’s pretty funky looking and I think it’s time I explain. After all, it is one of my very favorite projects that I’ve ever done. A few of you recognize that this is in fact a double pendulum, which is a really cool mechanism that demonstrates chaotic motion. That means even a slight difference in how you swing it will lead to wildly different results. I made these arms by laser cutting smoked acrylic and then I fit some skateboard bearings in them to make them rotate and then also have this 3d printed structure holding in place. Now double pendulums are super fascinating as they are they do some really crazy movement like that you see that of this weird there’s a lot of weird stuff and I wanted a better way to visualize it and that’s where this becomes extra cool this is a little battery pack that I 3d printed to hold two three volt button cell batteries it’s also got little slots to hold onto an LED now this isn’t your ordinary white LED in fact this one and miss light at a wavelength of 405nm putting it on the UV spectrum now this entire disk is coated in a photo luminescent pigment otherwise known as glow-in-the-dark paint combine that with the UV light and you’ve got something kind of awesome how cool is that and it only gets crazier when you turn off the lights so UV light glow-in-the-dark paint and a double pendulum do you see what I’m getting at here oh yeah good the bottom of pendulum in here is made just the right size to hold onto this battery and the LED there we go we now have a very cool way of visualizing the path that this double pendulum takes so I don’t give this a quick spin and then we’ll turn out the lights so you see why this is one of my favorite project it is especially cool especially person not to make you jealous now if you like me you could probably watch this for hours and that’s why i made a second video of just the pendulum ringing nonstop for a very long time so you have to check that out in fact why would make a little game out of it how about you guys find a really cool moment eating the pendulum swinging and link to it in the comments of that video which everyone gets the most likes i will send this awesome little glow-in-the-dark coral reefs that I made in my scribbler 3d video i think it could be fun especially since there are some really weird movements that this double pendulum does as you guys will see if you guys are like one of these one day make sure to check out the link in the description where I have a little product page setup for this Angeles and you can sign up with your email to get notifications if anything ever happens with it i think it could be a good kickstarter campaign all right guys there you have it one of my very favorite project Angeles until next time I’m Devin this is make anything, stay inspired

100 thoughts on “What’s the big circle on my wall?”

  1. cfluffer tin says:


  2. TheBoyCalledOwen says:

    Hey everyone! I'm Devin Montes and you're watching Disney Channel!

  3. DarkMetro888 says:

    Bruh it looks possesed lol

  4. Dallas Ortega says:

    Check out 3:03

  5. Mister Orun says:

    Hello this is the pendulum and you're watching Disney channel 2:48

  6. PostmanDank 420 says:

    Hi im stevie wonder and you're watching disneychannel

  7. Dino AKA Earthbor says:

    Can I have one

  8. Thats how MaFiA works says:

    We can all agree we came here for the recommendation

  9. Deanna Thompson says:


  10. Yoshimira says:

    2:46 disney stars trying to draw the mickey mouse logo

  11. Trey Idk says:


  12. Beeru says:

    Nobody gonna talk about the fact the light is purple and making green lines?

  13. Konbaby says:

    2:49 – it’s hitting the milly rock

  14. Cody Stone says:

    A newer version of ribbon

  15. BlueDataGirl says:

    Does it go on forever

  16. Patrick Quinn says:

    I’m gettin serious Rami Malik vibes from this dud

  17. Snooper Guy says:

    Worlds best Nun chucks wielder

  18. Joel Leon says:


  19. Joel Leon says:


  20. Joel Leon says:


  21. Joel Leon says:


  22. SilentGamer says:

    Now that's art

  23. Daivd Studebaker says:

    Your watching Disney Channel 3:00

  24. Daivd Studebaker says:

    Whats that face? 0:22

  25. Daivd Studebaker says:

    What is that face 0:23

  26. Daivd Studebaker says:

    What is that face? 0:25

  27. δμsκ & Dawn says:

    It looks like graffiti-

  28. Lukas says:

    405 nm is actually on the visible light scale, not UV

  29. iX says:

    2:51 it's Milly rocking

  30. xolo says:

    Its stupid

  31. Stefan Ropan says:

    Muie PSD

  32. CloudySnow says:

    Steam logo

  33. ROOMY ANT says:

    It drew his logo at 3:00

  34. skylar says:

    I’m pretty sure you can’t really predict how it’s gonna move 😐😅

  35. Bilbo Wagons says:

    me: wondering how many minutes are left in the period
    me: looks at the clock
    me: sees this on the wall

  36. xcel Kekahuna says:


  37. Austin Jaymes says:

    I'm a double pendulum and YOU'RE watching Disney channel!

  38. Littlenex X says:

    Every osu! Dance bot be like:

  39. SpoogleyOogley says:

    Hi this is pendulus from make anything and you're watching the Disney channel

  40. LostRain says:

    it's look like steam logo

  41. pokkez 188 says:

    When my doctor writes something down

  42. Cameron Wilkinson says:

    it would have been cooler if it had some sort of pattern i think

  43. Ard tist says:

    Dr. Strange appeared

  44. johnathan kent says:

    3:01-02 even it like MacDonalds

  45. alexandra nguyen says:

    this is how the cover of love yourself: tear, her, and answer were made

  46. My Mage says:

    2:44 "and you're watching Disney channel"

  47. Rotheme Vaknin says:

    I’m sorry but I kinda cringed but it is really cool

  48. Gintarue animates says:

    From the thumbnail he looks like Bryan dechart…..

  49. 13th Evergreen says:

    I'm feeling it braw

  50. Bling Bling Boy says:

    As a breakdancer, I think it spins a lot

  51. R I C A R DO M I L O S says:

    2:14 thank me later

  52. tina f says:

    Smart kid in my class:

  53. Evan 1014 says:

    you look like if Dan Howell and Bryan Dechart had a kid XD

  54. Darcmatter says:

    It’s obviously the Steam logo

  55. Eli Wright says:

    I seen it draw two of the hills in his logo.

  56. Jana Merten says:

    Really cool! ❤️ Great video AND project!!

  57. Black Reaper says:

    I Won’t one

  58. Superauthentic S S says:

    Basically a machine that writes in Gallifreyan

  59. Maciek Pietrak says:

    Wtf did just watch…? so amazing and creative! Thats useless, but i love it!

  60. Оги Kovalj says:

    Welcome to Disney chanel

  61. gudtlr alqns says:

    for math and computer sim of coplanar double pendulum,
    see "namupower" channel's video titled as 90009(coplanar double pendulum).
    that's awesome!!

  62. Evade Cl1pZ says:

    3:00 wow buddy u sure u like it that much

  63. Bene 0 says:

    Heyy Devin, I would really like to see this as a product you can buy. I would like to start Kickstarter. What do you say about this. I would organize everything with the lasercut-part supplyers…and so on

  64. Michelle Wyatt says:


  65. Illusions_ R6 says:

    K get out of recommended section YouTube
    I finally watched it Jesus Christ

  66. Ms.Craig AnderSAND says:

    Chaos can be so beautiful

  67. Normie says:

    Make a triple pendulum

  68. Logan Parker says:


  69. Tucker Casillas says:

    This is make anything and this is disney channel

  70. Tbone Bomb says:

    This is an old video, but I was wondering.

    I am currently trying to make one of these and I want to ask what did you do/use to connect the skateboard bearings in the middle part of the 2 pieces of smoked acrylic?
    Like around 0:44
    Much is appreciated

  71. Purple Monster says:

    2:43 when I didn’t get the lottery ticket but when somebody took it it was actually a winning lottery ticket

  72. Atoool K says:

    whoa this is cool 😀

  73. George Shen says:

    2:46 Welcome to the Disney channel

  74. Dan Richmond says:

    Wow super cool!

  75. Cherry Berry says:

    Found your channel right now. Saw this video first and immediately Subscribed

  76. Dan Dan says:

    "Hi I'm make anything and you're watching disney channel"

  77. Killspy6 says:

    I was entertained from 3:07 at .25 speed. lol

  78. Candy_cat111 says:


  79. erminertzgerm209 says:

    Where is the TUTORIAL

  80. Mr Sen says:

    And You’re Watching Disney Channel.

  81. Fiery Games says:

    3:01 hehe a wiener

  82. AP says:

    2:58 it does a wierd pretzel thing and it does the same thing right after

  83. 조재형 says:

    Let me know what the materials were used in this double pendulum.

  84. Brox Gaming says:

    Lol looks like it’s dancing at 3:02

  85. Evan M. says:

    Me: Hey, dad. Can you sign this for me?

    Dad: 2:44

  86. Amber Fuchs says:

    any bts fans here? this looks like the love yourself trilogy album art omg

  87. lol says:

    in new york i milly rock

  88. AJ Maker says:

    2:44 me trying to create a signature

  89. vasalem says:

    this pendulum would have been considered witchcraft in the past.

  90. Sharan Patil says:

    Dude this is awesome!

  91. Jon B says:

    I'm green with envy……

  92. Kate Flesher says:

    2:51 swipe it from fortnite

  93. AdrianMaster says:

    And now you're watching Disney Channel

  94. Steve Sloan says:

    I’m a bit confused….
    is the kicker the fact it’s truely random?

  95. Patrick Starr says:

    Imagine putting one of these inside a clock people would be like wtf is happening

  96. S. vs says:

    it gives me anxiety

  97. Antonina Yu says:

    3:00 dragonfly on the bottom

  98. AFreakinJoke says:

    kool aid


  99. Teresa Walker says:

    AP Physics C Mechanics love this!

  100. Ninja Hyper says:


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