Instructables
Today: a rocket launcher made out of a bic mechanical pencil.
Tomorrow: mini warheads
 
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Step 1: Gather materials

you'll need;
a bic mecanical pencil,
some scotch tape,
thread or other fuse,
propellent(I used match heads,
and a vice grip or
other means of breaking off the cap

Step 3: Final assembly

Tape the cap to the part where the eraser used to be and put the grip in the clip as a sight or grip.(optional)it should look like the second image

Step 4: Final prep

insert a 4 or so in. long piece of thread in the hole in the back of the ammo then put in your propellent of choice.Matcheads work fine especially if you crush them into a powder.

Step 5: Troubleshooting

you can't figure out how to fire it:the cat is smarter than you
you want to sue me:for what you did all on your own?
you are bored:get lost
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sharlston5 years ago
this is so cool if you have any more cool ideas please email them to mattyts@live.co.uk
Dantex7 years ago
Did you heard for focus ?
paper warrior (author)  Dantex7 years ago
Of, and yes. I have found that the photo is perfectly clear. I do not know about you. Sarcasm is not very appreciated, you don't seem to know that,do you?
Not photo whit cat. Other photos.
Sarcasm is the worst sense of humor. This does not apply to me.
I recommend the "macro" setting on your camera. It will be represented with a little flower icon and is most helpful in focusing on close-up objects.
wtf dantex? "did you heard for"??
X_D_3_M_17 years ago
stupid and confusing
paper warrior (author)  X_D_3_M_17 years ago
Why do you find it "stupid and confusing", would you care to explain so I can improve it?
how the hell do u fire iwthout buring ur face off/and or having to pick plastic shrapnel from your body. and whats the projectile? the head?
I like using copper pipe with one end flattened down and a hole drilled in it it works fine.
paper warrior (author)  X_D_3_M_17 years ago
Try keeping your face away from the exaust. The rocket will not explode...
any other possible prjectiles asides from cap? how to load it?
paper warrior (author)  X_D_3_M_17 years ago
Yeah, as long as you keep it a little bit nose heavy. You can use a piece of wax on the end for practice rounds. This has the benefit of being formable to an ogive.
How do you shoot it... lol
ultrauber6 years ago
try using macro for some of your pics
Yellow847 years ago
haha i have the same computer tower.
The kitty is cute.
HazardRush7 years ago
It was bad.
bug 87 years ago
you need to make a movie clip of you making it and launching it. I tried to make one but the match head powder did not ignite
dont shoot the kitty!!! )-=
scorp7 years ago
you lite the fuse...duh
soccer92707 years ago
the fuse went out as soon as it went in the tube, and the pencil melted so I had to saw it off. I tried a copper tube but it still didn't work. Have you actually done made this work?
I have... really well... i used some solid rocket fuel also to make it work... match heads works tho
sliza237 years ago
anyone know how to get my pics as my little icon thing???
go to you and go to settings under you're pic. then hit change pic
How do you get images from your reg. library to your Instructable library..?
Just when making an instructable hit UPLOAD PICS and search and upload
well i made it all and i thought i was just supposed to crush up tons of matches and shove them in the pencil, so i did and lit it and all it did was make a big flame, melting half of my pencil
here, just melt some potassium nitrate and some sugar and you got a rocket engine! get the right amounts of each on google.
paper warrior (author)  rocket man8 years ago
isn't that how smoke bombs are made?
yes it is...
usuck7 years ago
the thread wont burn it loses oxygen once it goes into the tube do i do it wrong? And are matchheads really the ends of matches?
paper warrior (author)  usuck7 years ago
Amybe covering the thread in gunpowder would help. And yes, thats what matchheads are. Better yet use gunpowder for the propellant. 545 rounds of .22cal costs 14 bucks, lots o' powder.
woohooo! do you want us killed?
paper warrior (author)  thingygoboom7 years ago
You just put a pair of pliers on the slug and the case, and pull em' apart. Thats what I do. Btw, this IS in the not liable category. lol.
zumaeta7 years ago
cover the string in nail polish and posibly use a thicker string
does thread actually burn like a wick?
ninjaman7 years ago
I am having a lot of trouble with firing this thing. First, the thread wilts if you try to ignite it. Then, the flame goes out as soon as it goes in the tube(like usuck said). Then, I have almost sucesful launche without a fuse. Could you give me some advice?
Icepick7 years ago
I dont understand the last picture. ???
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