How to Make a Great Exploding Knex Grenade with Pin by spartanskunk
DSCN4396.JPG
DSCN4395.JPG
DSCN4397.JPG
One day I was building K'nex grenades and the one thing that I noticed was that none of them really exploded. They just kind of fell apart, so I decided to develop my own. I spent hours trying to find a way to actually get the pieces to fly off. Finally I hit upon this design. It explodes so well that I am still looking for pieces that had gotten lost during testing.

The blast radius is about 10 feet, so do not throw near people, animals, or breakables.

Have fun with it and please rate, comment, and subscribe!
 
Remove these adsRemove these ads by Signing Up

Step 1: Parts List

DSCN4398.JPG
The K'nex pieces you need:

2 dark grey connectors
8 red connectors
2 white connectors
2 blue spacers
1 blue rod
dwksideas says: Feb 2, 2011. 5:04 PM
awesome design
SN1P3RL0RD says: Oct 5, 2012. 4:28 PM
This is really good.
SN1P3RL0RD says: Aug 28, 2012. 4:16 PM
It works really well. One with more ammo would be nice.
The cameraman says: May 28, 2012. 7:45 AM
HOLY #&*$$#!.this thing is awesome! mayby you could create a similar one with more ammo.
The cameraman says: May 31, 2012. 7:47 PM
I actually might have an Idea on how
K.G.T. says: Sep 2, 2011. 8:49 PM
Good job. Imagine it in a grenade launcher...
The cameraman says: May 30, 2012. 7:33 PM
in a grenade launcher would be EPIC!!!
~KGB~ says: Jan 27, 2011. 1:14 PM
not bad
ihaveguitarskills! says: Jul 30, 2011. 3:03 PM
U FRICKIN COMMUNIST!!!
~KGB~ says: Jul 31, 2011. 10:36 AM
FTW!
ihaveguitarskills! says: Aug 7, 2011. 8:56 PM
dude calm urself
~KGB~ says: Aug 8, 2011. 4:55 AM
lol XD
ihaveguitarskills! says: Aug 8, 2011. 10:52 AM
this is a LONG comment post

P.S. ..........bungalow
~KGB~ says: Aug 8, 2011. 10:56 AM
?
ihaveguitarskills! says: Aug 15, 2011. 11:44 AM
ALL SHALL PERISH WHEN I RULE...except jennifer lopez and those who really do play awesome music
~KGB~ says: Aug 15, 2011. 12:12 PM
lol XDXDXD
ihaveguitarskills! says: Aug 22, 2011. 3:11 PM
I HAVE NEWS!!!!! I...AM...AWESOME
~KGB~ says: Aug 22, 2011. 4:18 PM
lol
The cameraman says: May 28, 2012. 2:43 PM
?????
~KGB~ says: May 28, 2012. 9:23 AM
The cameraman says: May 30, 2012. 12:34 PM
????????????????????????????????????????????????????????????????
~KGB~ says: May 30, 2012. 7:40 PM
7
The cameraman says: May 30, 2012. 8:08 PM
???????
~KGB~ says: May 30, 2012. 1:24 PM
The cameraman says: May 31, 2012. 12:49 PM
SPEAK TO ME!!!!!
~KGB~ says: May 31, 2012. 1:03 PM
7
The cameraman says: May 31, 2012. 12:53 PM
Also IHAVEGUTARSKILLS, gunpowder sucks
knexforever says: May 17, 2012. 7:30 AM
this rox
knexforever says: May 17, 2012. 7:30 AM
this is amazing. good work!
Lego Manic says: Dec 10, 2011. 5:46 PM
I like it! 4*
Infinite_minus_zero says: Aug 18, 2011. 8:51 AM
WOA. This is a pretty smart design! i never would have thought of that :) I threw it and now i cant find 3 of the 90 degree angle pieces, lol, ill probobly find them, in a year or two. i threw it in the center of my room in pieces litereally hit the walls and slid down behind my bed and dresser.

/!\ WARNING /!\
Be careful when you are putting the Red pieces (or in my case, grey) onto the white pieces (or in my case black) I one flew off and hit me in the nose! :P

i give this 4/5*s. (you would get the last star if you had some clever way to find the pieces again! haha)
NatNoBrains says: Jan 25, 2011. 9:16 AM
Looks alright, clever how they ping off :)
4*
Pro

Get More Out of Instructables

Already have an Account?

close

PDF Downloads
As a Pro member, you will gain access to download any Instructable in the PDF format. You also have the ability to customize your PDF download.

Upgrade to Pro today!