Verry Simple Frag Grenades




this is exactly the same as the first ones i made but the pictures work.

oh and yes for some reason this instructable has also been posted on another site if you look at it its still mine its got by the inventor on it.


theese are based on some frags i saw on this site but i cant remember who did them so thanks for the idea.
there are three: the simple frag, the impact frag and the ball of doom.

Step 1: The Simple Frag

first you will need 8 orange connectors and one white circular connector.

Step 2: Connecting the Connectors

simply clip the orange connectors onto the white one its verry simple.

Step 3: Youve Finished the Simple Frag!

it should look like this

sos i made an error with the yellow box thingys

Step 4: The Impact Frag

this it just the simple frag with a rubber band around it it strengthens it and therefore making it harder to smash so you can throw it harder.

first make the simple frag and get yourself an elastic band.

Step 5: Impact Frag Elastic Band Part1

first put your elastic band on like this

Step 6: Impact Frag Elastic Band Part 2

now this bit "can" be tricky. keeping the band on the first two orange connectors stretch it over the upper and lower connectors like this.

Step 7: Impact Frag Finished!

stretch the band over the remaining connectors.

Step 8: The Ball of Doom

you will need two of the blue circular connectors and eight red connectors.

Step 9: Ball of Doom Step 1

clip the two blue connectors togeather to make a ball.

Step 10: Ball of Doom Step 2

now clip on the red connectors like with the simple frag.

Step 11: Finished Ball of Doom

add the rest of the red connectors and it shoukd look like this

Step 12: How to Throw

to throw the simple frag grasp it by the centre of the white connector.

to throw the impact frag hold one of the orange connectors.

theese are both thrown like frisbies

to throw ball of doom hold in palm of hand and throw like a ball




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    54 Discussions

    the inventor

    9 years ago on Introduction

    i can't believe it, i posted these things ages ago and recently I've started to receive tons of comments on them. Thanks everyone, but unfortunately i wont reply to most of them and i doubt i will be posting anymore Instructables. If i did though i think id make a new profile, because i don't make anything out of knex anymore. But once again thanks guys and maybe ill post some new things when i get the time.


    9 years ago on Step 11

    I LOVE the ball of doom. But there's only 1 PROBLEM, Whenever I throw it all the fragments come back to hit me instead of hitting whoever is in front of me!!!! Can anyone tell me why this is happening!?!?!


    10 years ago on Step 11

    The ball of doom works great!!!!!!!!!!

    An Villain

    10 years ago on Introduction

    in my opinion knex grenades are separated into two classes the first is rubber band powered "snap" grenades which have a bigger blast radius but usually less fragmentation and usually fire spacers the other kind are collapse grenades which have a smaller blast radius but usually fire pieces. the ones on this instructable are collapse grenades.


    10 years ago on Introduction

    how does the ball of doom work it dosent have eny rubberbands or enything


    10 years ago on Introduction

    the impact frag doesn't work at all. But the other one works pretty well! :-)


    10 years ago on Introduction

    i dont see how an extremely durable grenade that has a 50% chance of exploding is useful. Unless your playing RUSSIAN roulette with a frisbee

    DJ Radio

    10 years ago on Introduction

    Hey, I came up with a grenade with the exact design as this, without looking at yours. I checked to see if I was plagiarizing before i made a forum about it, and i found this.

    5* for having my mind........


    11 years ago on Step 11

    i threw the star shaped grenade at someone and i poked their eye out =)

    1 reply

    10 years ago on Step 11

    the ball of death made me decide to get an account for this by far the best knex grenade ever easy and good


    11 years ago on Introduction

    i built this. i took it to school and chucked at my teacher. i got in tourble and now i have detention for a week.

    3 replies