Instructables

F25 Anti-Personnel Grenade

This is a new type of grenade that I designed

It uses a spring motor that is activated by pushing up the pin on the bottom (after being cranked) to fling shrapnel to distances not achievable by your average run-of-the-mill grenades...or should I say blunt throwing objects...*cough cough*. On average, this grenade can fling various shrapnel (green rods, ball joints and connectors, etc...) up to 25 feet. The best feature of the grenade, besides its blast radius, is how YOU DON'T NEED TO REASSEMBLE IT; you just reload the shrapnel, and toss again.

I also have a slightly different version of this that can be fired from a Knex RPG launcher!!!!! (coming later this year, because the M4 is using most of my pieces).
 
Remove these adsRemove these ads by Signing Up

Step 1: Parts List

I forgot to add in the white rods...there are 16 of them

Also, the invisible object next to the "=2" is a blue small gear

All black ball joints can be substituted by tan clips or similar pieces

Step 2: Build some parts

Picture of Build some parts
002.jpg
003.jpg
Here are a few necessary parts, build all shown in pictures.

Step 3: Begin construction

Picture of Begin construction
005.jpg
Now we begin to put it together

Pictures
1. Add yellow rod pieces to a bottom plate
2. Add the motor

Step 4: First Layer

Picture of First Layer
007.jpg
008.jpg
This step requires 4 tan clips and 4 ball joints as well as a new type of plate, to hold everything in place. Construct all.

Pictures
1. All parts
2. Pay careful attention to orientation of pieces
3. Top it all off

Step 5: Second Layer

Picture of Second Layer
010.jpg
You need four ball joints and 2 of the pieces you already made

Pictures:
1. Parts
2. Attached

Step 6: Third Layer

Picture of Third Layer
012.jpg
Much like the second layer, but goes the other way.

Pictures
1. Parts
2. Assembled

Step 7: Keep it together

Picture of Keep it together
014.jpg
Add a few ball joints to hold it together.

Pictures:
1. Parts
2. Attached (like in the past steps make sure all the ball joints are turned the correct way)
(removed by author or community request)
see obluvitus'es fake grenade
mberg4 years ago
can you use something else instead of ball point connecters
mberg mberg4 years ago
nevermind. i thought it was for shrapnel.
dylan12344 years ago
 can i see a vid of if working?
Pizzapie5004 years ago
3* The idea is good but it doesn't work well. (You should make this as a spinning top)
Pizzapie5004 years ago
I'm guessing you're out of gray 1 connectors lolz
Pizzapie5004 years ago
omg you have 2 mini motors! I have 105+ pounds of knex but only one mini motor!
covey125 years ago
you should glue the non moving pieces to make it permanent, and less fragile on impact
builder9685 years ago
would buld, but dont have that weird spring motor.:(
flames10391 (author)  builder9685 years ago
:P its all good. they are pretty easy to find if you are that desperate to build it. otherwise you arent really missing out
oh well. can you make another time bomb grenade like this without a spring motor. how 'bout one with springs or rubberbands instead?
flames10391 (author)  builder9685 years ago
i can try that. If i can find time i will
thnks! tell me when youre done!
hey i have the same box! lol nice instructable anyway
flames10391 (author)  gamerboy02956 years ago
lol thanks
no problemo
hahaha you got the name "anti-personnel" from the game red faction 2! you cant hide from me!!!
flames10391 (author)  killer towels6 years ago
haha no actually i didnt i've never played that game and "anti-personnel" just means its a weapon used to kill things haha see: wikipedia
neardood6 years ago
it would help if ewe posted a you tupe video of the device in action
flames10391 (author)  neardood6 years ago
no camera i can afford at the moment could capture the speed of the shrapnel from the grenade but it's pretty simple how it works. 1.crank grenade and pull down on pin to lock 2.load shrapnel 3.throw 4.pin hits ground, unlocks, shrapnel flies 5.lather, rinse, repeat
MI66 years ago
nice inventiveness
flames10391 (author)  MI66 years ago
haha thanks
Nice 1! :)
thanks!
TheDunkis6 years ago
problem is with this thing as cool as it is it's not very practical to carry around with you. I'm trying to invent a real real grenade that can be lanched from an attachment that I'm adding to my latest gun. I could just as easily make a connector grenade but I want something to actually explode. This idea was pretty good though. Keep it up.
flames10391 (author)  TheDunkis6 years ago
ya this is only 1 of my grenades...i have many but this one was the easiest one to make an instructable. i also have an rpg launcher in the making
how do you get the ammo to stay in the grenade, everytime ive thrown it it falls out before the grenade lands :(
flames10391 (author)  fobblewabble6 years ago
good question, i had that problem before. This is one of the drawbacks of a grenade like this, but it can pretty much be made up for. what i originally did was put a few pieces of double sided tape on the bottom of the load area, but this limited the amount of shrapnel i could put in. Now, when i use it, i put a few ball joint connectors on the inside ball joints to kind of seal it off, but when it is set off, the pieces are flung out and move the ball joint connectors out of the way. This grenade has a few flaws and the second version works much better than this...I am still adding finishing touches to it. If you figure out a way to combat this, please tell me, I'd be interested to know.
Looks sweet! I wanna try this. how much stuff does it shoot? lots? great! Nice work
flames10391 (author)  I_am_Canadian6 years ago
you can put alot of pieces inside but to many will make it jam thanks
ok
ojochris6 years ago
"+" 1 Badass!
flames10391 (author)  ojochris6 years ago
haha thanks