3 Simple Ways to
Share What You Make

With Instructables you can share what you make with the world — and tap into an ever-growing community of creative experts.

PhotosPhotos

Share one or more photos of a project, recipe, or whatever you've made, quickly and easily.

Get Started

Learn more & Get Tips

Step by StepStep-By-Step

Share your step-by-step photos with text instructions of what you made so others can do it too!

Get Started

Learn more & Get Tips

VideoVideo

Share your how-to video. You'll need your embed code from a video site such as YouTube.

Get Started

Learn more & Get Tips

Print PDF

Favorite

Knex Catapult

last photo ←

Basic Knex catapult based off of Da_Fudge's Super simple Knex Catapult, and geek27's mobile K'nex Catapult. Follow the images in order to build.

25 comments

Jul 17, 2011. 8:17 AMsniper_lover says:

PLZ!! WHAT DOES IT SHOOT!!!!!!????????

Mar 4, 2012. 8:25 AMsuperbestknex says:

green or white rods

Oct 28, 2011. 1:39 AMD.A.V.E The Robot says:

What does it shoot

Jul 28, 2011. 8:06 PMKNEXMAN4400 says:

what in the heck
does this thing do you should answer people

Apr 25, 2008. 10:19 PMDa_Fudge says:

looks really cool. thanks for the reference. does it fire very far? Also, maybe this would be better as an instructable?

Apr 26, 2008. 11:56 AMZenosythe (author) says:

sorry, i wanted to get it out, but didn't have time to make an instructable no idea how far it shoots, still cold where i live, so can't shoot out side and im not allowed to shoot it in the house

Dec 3, 2008. 3:25 PMWafflicious says:

shot 20ft for me =) not bad for catipult

Jul 13, 2011. 3:15 PMknextremist says:

what does it shoot?

Dec 5, 2008. 12:03 AMDa_Fudge says:

Cool!!!

Jun 22, 2011. 8:08 PMboogieboy66 says:

What does it shoot?

Jun 8, 2011. 4:35 AMKarlaw says:

What does it shot

Feb 25, 2011. 5:42 AMadsies99 says:

i got mine to shoot 250 feet on a flat and 100 up hill 5/5 4 me

Dec 5, 2010. 3:47 PMknexfreak34 says:

PLZ WAT DOES IT SHOOT!!

Nov 23, 2010. 11:34 AM(YOUR N says:

xztdgyhj

Nov 6, 2010. 12:03 PMlichking says:

this is awesome

Oct 2, 2010. 7:55 AMthatgreasymechanicguy says:

tic tac toons !!!! !@!~!! !@$#%&( !#!@$ldfugjudkk hihihihihigaygaie skurpiwsuepisetupewuporuefwrjtoiw noija masta!!!!!

Jan 24, 2010. 1:57 PMsplodies says:

what and how does it shoot

Oct 17, 2009. 9:21 AMR 4 N D 0 M says:

U might want to make the base wider in the direction you shoot.
Most catapults have tendency to flip when too small of a base.

Apr 14, 2009. 7:25 AMknex gun maker says:

http://www.instructables.com/edit/share?groupId=G3UPJ47FT7PL2QV join this club copy and paste to the url box , we would like to see your knex guns and advertise the url on knex instructables

Jan 11, 2009. 2:59 PMbuild it break it do it again says:

cool

May 10, 2008. 11:58 AMcarrothead23 says:

what does it fire??????????