Instructables

Rapid Ball Juggler

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Hey y'all! This is my entry into the Kinetic Sculpture Contest.

This is a kinetic sculpture that catapults ping pong balls into the air, into a basket, and back to the catapult. It runs for as long as you want it to with a motor, and a rubber band powers the catapult. A mechanism at the end allows each ball to load into the catapult one by one. It's a useless machine, but fun to watch. :-)

This machine is made to use 38mm ping pong balls.

Here's the video of the ball juggler in action:



So, let's get building! I hope you like it!

 
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Step 1: Parts List

Picture of Parts List
Here's all the pieces you'll need to make the ball juggler:

Rods: 279
  • green-98
  • white-38
  • blue-92
  • yellow-35
  • red-9
  • flexi-rod (gray rod length)-3
  • rigid tan-2
  • rigid black-2
Connectors: 225
  • dark gray-11
  • light gray-5
  • red-34
  • green-25
  • yellow-45
  • white-14
  • orange-24
  • blue-27
  • purple-40
Other: 127
  • blue spacer-51
  • silver spacer-43
  • tan clip-21
  • Y-connector-7
  • rubber band-1
  • motor-1
  • small blue gear-1
  • red gear-2

TOTAL: 631

If you have all of these pieces, then you may begin! If you don't, then you could still try, and leave some pieces out (even though it won't work as well). Tan (red rod length) or black (gray rod length) rigid rods can be replaced with red or gray rods.
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epicpenguin1312 months ago
I had to tweak this slightly but still a great instructable! 5*
Shadowman39 (author)  epicpenguin1312 months ago
Thanks!
joezim0071 year ago
Now I just need to adjust the angles and get a more powerful rubber band and I'll have a super cool ball lift. :)
Shadowman39 (author)  joezim0071 year ago
Cool!
~Meme~1 year ago
I love it man! It counts as a ball machine I can make!
Shadowman39 (author)  ~Meme~1 year ago
Cool, thanks!
Built it!
Shadowman39 (author)  ~Meme~1 year ago
Nice, does it work well?
Once in a while a ball will miss the basket, but other than that I would strongly recommend it!
Hey I managed to build 2 of these. I found a way to conect them together and with some moding i have a dual one. wil post a pic soon if thats ok :D
Shadowman39 (author)  The Cannoneer2 years ago
That sounds cool!
after the ball gets flung into the basket the ramp leads to the other flinger then that ball gets launched into the other basket then it all happenes again...very donfusing...lol :D
Shadowman39 (author)  The Cannoneer2 years ago
Haha :-P
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Shadowman39 (author)  The Cannoneer2 years ago
That's a bunch of XD's!
Looking back on that....I actually wonder how many people flaged me for spam...
O-o I know. Me!!
cool!
Somebody call the NBA I think we got an allstar :)
Randomguy653 years ago
Oh, what the heck. I've finally got some ping pong balls so why not. :-) I've got nothing better to do.
Shadowman39 (author)  Randomguy653 years ago
Cool! Send me a picture when it's done.
I am having difficulties. :-(
me too its with the catapult it wont go all the way down to pick up the ball
Shadowman39 (author)  Randomguy653 years ago
With what part?
CRAP! The ball dosen't want to make it on the catapult because the arm doesn't go down far enough!!!!!
pokerface13 years ago
Shadowman39 I'm a huge fan of you and i build this thing, it's realy awsome and I have fun with it. I don't have a picture, sorry
I also build the Knex Cristmas Wreath and the Hole Puncher.
Keep on doing this great work.
Shadowman39 (author)  pokerface13 years ago
Glad you like my Ibles! :-)
i am having trouble getting the catapult to hit the ball loader i think you shortend te turning mechanism too much
project juggle sounds good :)
Shadowman39 (author)  charliethecreator2 years ago
Haha :-P
awesome
Shadowman39 (author)  Snosageman992 years ago
Thanks!
Oblivitus2 years ago
This is great! 4.5 stars.
Shadowman39 (author)  Oblivitus2 years ago
Thanks!
Knex Yoshi2 years ago
thx **5**
Knex Yoshi2 years ago
can you build with micro (I recently made the coin sorter but took it apart bcuz it didnt work
Shadowman39 (author)  Knex Yoshi2 years ago
Probably yes, but it may not be strong enough for the rubber band.
knexman20012 years ago
Best instructable EVER!
Shadowman39 (author)  knexman20012 years ago
Thanks! :-)
Knex12353 years ago
mine it isnt getting in the loncher in gets in the thing that holds it for the ball to get in but i wont go in the lonchger but any way it is good
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