Introduction: Simple K'nex Grenade by Bradley

In this Instructable, I will show you how to make a grenade from 2 halves of a knex ball(sold in the 250 piece set with 150 bonus parts, and maybe some others, but this is where I got it ), and a spring. I got mine in a nerf gun. Also, a red rod will be helpful.
Let's get started!

Step 1: Assemblance

The red rod is just here to help, you don't really need it, though it is fairly difficult without.
Also, shrapnel may be added, just put it vertically so All the shrapnel won't fall out of one of the halves, then press the two halves together.

Step 2: Done!

Wowie! We're done already! To detonate just throw it. Please don't be harsh. This is my first instructable, and I hope you like it!

Comments

author
singerboy41 (author)2015-03-30

I have the perfect spring that would work :) I have no ball pieces, though :( I wish I did, I would go throw this at my brother right now.

author
Whaleman (author)2007-11-12

Nice, I had had this Idea for a long time, but no spring that would work =(

author
Dumchicken (author)Whaleman2011-06-29

i got mine from an old game cube turbo controler

author

Me too :( Only elastic bands.

If you have a spring donation then please post it to ..18 Sodsbury Terrace, Hooverhampton, Bingoland.

author

Bingoland, eh? Can't say I've ever heard of that place before.....

author

It is also known as Mecca :P

author

Ain't that where Muslims are supposed to face when they prey five times a day?

author
Prranavan (author)2009-04-10

It is good but if you fill the inside of the ball with blue spacers and green rods, it will be a lot better

author
eneergcam (author)Prranavan2009-06-19

i did that too:)

author
eneergcam (author)2009-06-19

i thought of this when i was like 10.

author
Mr Tenacious (author)2007-11-13

Nice idea. I would like to try it but i have no ball, what set do you get them from?

author
Prranavan (author)Mr Tenacious2009-04-10

u can get it from the "BIG BALL FACTORY" set

author
Fenderpony (author)Mr Tenacious2008-08-13

you can get the ball pieces in the wind up motor set with a red small bin. theyre kinda easy to find so I think you wouldnt miss it in the toys section.

author
Bradley1000 (author)Mr Tenacious2007-11-18

I said in my intructable where to get the ball, It comes with the 250 piece set with 150 bonus pieces. I found that set on amazon.com for about 20 dollars.

author
jakesllama (author)2008-03-09

great now all you need is a GRENADE LAUCHER!!! good work

author
An Villain (author)jakesllama2009-04-10

build this http://knexinnovation.net/forums/viewtopic.php?f=49&t=157 but please know that this is not mine

author
andrew13 (author)2008-08-12

Now fill it with airsoft BBs and its an airsoft grenade!

author
Japaneese taco (author)2008-02-02

dude this is sweet! I came across an idea that instead of picking up all the scattered pieces fill with baby powder. im doin that this morning

author
SeMi_AuToMaTic (author)2008-02-02

yeah, um it detonates for me as soon as it leaves my hand! maybe i've used it to many times. Its awesome though! +1

author
xero1 (author)2007-11-22

not bad nice idea

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altaria1993 (author)2007-11-13

finally a good use for those darn balls :D

author

AHEM... Ball machines...

author

i ment in a way of arms and stuff :P

author

True. You could always launch them with a giant cannon...

author

i was thinking about that too :P

author
nerfer192 (author)2007-11-19

you sould fill this with airsoft pellets

author
Darth Trainman (author)2007-11-13

Simple, but it actually seems to work... impressive.

author
halo99 (author)Darth Trainman2007-11-16

wtf

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nerfer192 (author)2007-11-15

sick idea but i dont have the right peices :-(

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tater killer (author)nerfer1922007-11-15

go to knex.com for the ball

author
Knex Lego Maniac (author)2007-11-14

SR-v1 coming soon!

author
Pax415 (author)2007-11-12

Cool instructable

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