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A super Simple K'Nex Catapult

A super Simple K\
I have been reading & building stuff off instructables for a while now. I thought it was time to contribute.

Here is my first instructable: a simple but effective catapult. it fires about 2 feet, but shoots it really high.

it uses marbles, but small sinkers work as well.

Ready to build: continue to step 1.
 
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Step 1Parts

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26 comments
Oct 3, 2011. 5:00 PMdirtbikerider78 says:
nice job i made won myself base on the same design fires awsome!!!!!!!!!!!!!!!!!!!!!
Sep 23, 2009. 1:20 AMtrav1234 says:
how do you put he elastic band on????
Feb 22, 2011. 1:03 PMbosniaguy says:
And what gives you the impression the elastic band is male?
Sep 11, 2010. 12:59 AMAnidion says:
Well done! Good instructable :)
Jul 28, 2009. 8:39 AMglugnar says:
cool idea but i cnt get it to shoot far
Apr 27, 2009. 4:54 PMgsmit says:
its called the basket.
Apr 26, 2009. 6:00 PMdragonoid294 says:
i fixed it so it will launch 2 yards hehe its awsome
Jan 17, 2009. 7:25 PMquesoman says:
cool idea... mine wotks great
Dec 8, 2008. 8:50 AMOwenmon says:
whenever i used this, it always flipped over and broke =(
Sep 10, 2007. 12:18 PMWhaleman says:
Cool, there aren't many catapults on this site. And don't worry, after a while a lot of pieces will be bent or broken, I have broken about 20 pieces. (first and second comment unclaimable.)
Sep 10, 2007. 6:11 PMMepain says:
I've broken about 100...
Dec 9, 2007. 3:38 PMVirtualgoose says:
YEAH, WELL I BROKE 1,000,000,000 PIECES!!!!!!!!!!!!!!!!!!!!!!!!!!!111111111111111!!!!!!!!!11111!eleven
Jul 18, 2008. 12:51 PMf22araptor says:
how did u brake that many peices
May 8, 2008. 9:09 AMcarrothead23 says:
well i broke a rod wi;e malin this catapult!!! LOL :) :> :P ;) i heart smileys!!!!!!!!!!
Jul 6, 2008. 7:05 AMVIPER1 says:
i have only broken 1 of my knex pieces... that was when the ammo of my gun crashed into a wall at short range...
Sep 10, 2007. 6:20 PMWhaleman says:
crap. But I treat my knex with care. And my room is so hot (bout 10 degrees hotter than it is outside) that I doubt my knex pieces could break without melting lol
Sep 11, 2007. 12:26 PMbunduk says:
why is it so hot ive broken 'bout 10-20 too
Apr 6, 2008. 6:00 PMZenosythe says:
could i have your permission to make an intructable of it? i'll be sure to give you and geek27 credit
Apr 6, 2008. 6:05 PMZenosythe says:
oops, th comment above this is supposed to be below the other one. plz pm me to respond
Apr 6, 2008. 5:54 PMZenosythe says:
Wow, me and my friend have been working on a catapult with the same basic system of this one, though ours uses geek27's firing method of sticking a clip on the end of a pole with an orange connector. I think his (geek27) is a related Instructable
Apr 25, 2008. 6:56 PMZenosythe says:
It's done! please check it out under knex catapult.
Oct 20, 2007. 4:48 AMgilros says:
I haven't broken any, but I've bent a ton... You know what sucks? I found an ENTIRELY new design for an auto loading k'nex gun, and I can't post any Instructables!!!
Sep 17, 2007. 10:34 AMpakman227 says:
how does it work?
Sep 11, 2007. 11:52 PMbedbugg2 says:
i break lots of pieces too, i broke 5 grey rods when i made your crossbow, mepain!
Sep 10, 2007. 10:33 AMryan knexer says:
how high does it shoot?

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Author:Da_Fudge
I like electronics.