Introduction: How to Make a Great Exploding Knex Grenade With Pin

Picture of How to Make a Great Exploding Knex Grenade With Pin

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!

Step 1: Parts List

Picture of Parts List

The K'nex pieces you need:

2 dark grey connectors
8 red connectors
2 white connectors
2 blue spacers
1 blue rod

Step 2: The Pin

Picture of The Pin

This will keep the grenade from exploding in your face while you are putting the ammo (red connectors) on.

1. Make this.

Now that wasn't too bad was it?

Step 3: Adding the Ammo

Picture of Adding the Ammo

These connectors are a little hard to get on but if you keep trying you will do it.

1. This is how the red connectors attach to the white ones.
2. Close-up.
3. Put them on opposite each other.
4. Add more at 90 degrees to the first two.
5. Fill in the empty spaces.
6. Done!

Step 4: Using Your Grenade

Picture of Using Your Grenade

To use your grenade, remove the pin by taking off the grey connectors and removing the blue rod (pic 1). Chuck the grenade (pic 2) at something hard (wall, ground, etc.). I find that brick walls work great. If it does not explode, throw it harder or PM me about your problem.

I will try to embed a video of it exploding later.
Now that was easy! (pic 3)


dwksideas (author)2011-02-02

awesome design

knexfreak1234 (author)2016-12-17

i fitted it to my grenade launcher at it my sibling so hard she started crying

random_builder (author)2016-05-30

this is awesome!

GrimEagle (author)2016-01-31

Wow! Nice design! I'm currently working on a newer and more explosive design! Please check it out when it's done!

Smiley_Face (author)2013-12-28


SN1P3RL0RD (author)2012-10-05

This is really good.

SN1P3RL0RD (author)2012-08-28

It works really well. One with more ammo would be nice.

The cameraman (author)2012-05-28

HOLY #&*$$#!.this thing is awesome! mayby you could create a similar one with more ammo.

I actually might have an Idea on how

~KGB~ (author)2011-01-27

not bad

LiftAndLove (author)~KGB~2011-07-30


~KGB~ (author)LiftAndLove2011-07-31


LiftAndLove (author)~KGB~2011-08-07

dude calm urself

~KGB~ (author)LiftAndLove2011-08-08

lol XD

LiftAndLove (author)~KGB~2011-08-08

this is a LONG comment post

P.S. ..........bungalow

~KGB~ (author)LiftAndLove2011-08-08


LiftAndLove (author)~KGB~2011-08-15

ALL SHALL PERISH WHEN I RULE...except jennifer lopez and those who really do play awesome music

~KGB~ (author)LiftAndLove2011-08-15


LiftAndLove (author)~KGB~2011-08-22


~KGB~ (author)LiftAndLove2011-08-22


The cameraman (author)~KGB~2012-05-28


~KGB~ (author)The cameraman2012-05-28

The cameraman (author)~KGB~2012-05-30


~KGB~ (author)The cameraman2012-05-30


The cameraman (author)~KGB~2012-05-30


~KGB~ (author)The cameraman2012-05-30

The cameraman (author)~KGB~2012-05-31


~KGB~ (author)The cameraman2012-05-31


Also IHAVEGUTARSKILLS, gunpowder sucks

K.G.T. (author)2011-09-02

Good job. Imagine it in a grenade launcher...

The cameraman (author)K.G.T.2012-05-30

in a grenade launcher would be EPIC!!!

knexforever (author)2012-05-17

this rox

knexforever (author)2012-05-17

this is amazing. good work!

Annix15 (author)2011-12-10

I like it! 4*

RadioactiveBees (author)2011-08-18

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 (author)2011-01-25

Looks alright, clever how they ping off :)

About This Instructable




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