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Step 2: Catapult Section

First, build the catapult. There are 3 parts to build, and then you'll connect them together. This step has lots of pictures, but there are descriptions of all of them below.

Pic. 1- Build this small support.
Pic. 2- Another view, of the back side.
Pic. 3- Build the catapult. This section also includes the rubber band. I used the red rubber band from the electronic arcade Knex set.
Pic. 4- Close-up of the catapult. There are two pairs of tan clips that should be facing each other on the end of the catapult.
Pic. 5- Close-up of the spacers and the other side.
Pic. 6- Another view of the spacers.
Pic. 7- The rubber band holder.
Pic. 8- Another view.
Pic. 9- Build this small section.
Pic. 10- Attach the small section you just built to the catapult.
Pic. 11- Another view.
Pic. 12- Build the catapult housing.
Pic. 13- Another view.
Pic. 14- Another view.
Pic. 15- Close-up of the spacers.
Pic. 16- Another view, of the bottom.
Pic. 17- Get all three sections that you just built.
Pic. 18- Combine the catapult and the catapult housing.
Pic. 19- Another view.
Pic. 20- This is how the rubber band holder attaches to the catapult housing.
Pic. 21- Attach the small support. Once you do this, you are finished with the catapult!
Pic. 22- Another view.
<p>Nice! The only thing I do not have is the ping-pong balls. Once I find some, I will build this.</p>
<p>Thanks! Have you found any ping-pong balls by now?</p>
<p>You're welcome! :-) No ping-pong balls yet, but I'm working on it.</p>
Here it is! I finished building it and it works great!
<p>Looks nice, thanks for building!</p>
That's awesome! I'm going to post an instructable of my own soon! :-)
<p>Cool, thanks!</p>
That's awesome! I'm going to post an instructable of my own soon! :-)
That's awesome! I'm going to post an instructable of my own soon! :-)
That's awesome! I'm going to post an instructable of my own soon! :-)
I had to tweak this slightly but still a great instructable! 5*
Thanks!
Now I just need to adjust the angles and get a more powerful rubber band and I'll have a super cool ball lift. :)
Cool!
I love it man! It counts as a ball machine I can make!
Cool, thanks!
Built it!
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
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 <br>
Haha :-P
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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 :)
Oh, what the heck. I've finally got some ping pong balls so why not. :-) I've got nothing better to do.
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<br>
With what part?
CRAP! The ball dosen't want to make it on the catapult because the arm doesn't go down far enough!!!!!
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 <br>I also build the Knex Cristmas Wreath and the Hole Puncher. <br>Keep on doing this great work.
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<br>
project juggle sounds good :)<br>
Haha :-P
awesome <br>
Thanks!
This is great! 4.5 stars.
Thanks!
thx **5**<br>
can you build with micro (I recently made the coin sorter but took it apart bcuz it didnt work
Probably yes, but it may not be strong enough for the rubber band.
Best instructable EVER!
Thanks! :-)
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 <br>

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Bio: On my page you'll find lots of different Knex projects, from ball machine lifts to useful (and useless) items. I hope you enjoy!  _______________________ ... More »
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