Mechanical Pencil Gun

Step 5 Completion

With the rubber band attached to the eraser shaft, slide it back into the barrel. The gun is now complete. To fire, pull back the eraser shaft, load ammunition into the muzzle, and release.

Comments

[cwestrum]

you can put staples or needles in the wax too.

[cwestrum]

I like to use a little bit of wax candle or cheese wax. It sticks to the black end and you can stuff it so it compresses the air and hits harder.

[sportguru]

Hahaha. I used one of these and got expelled for it..

[awesomekitteh]

yeah sure ya did

[HiddenBlade1234]

it cool im using small screws that i had from other projects

[aarrnnoo]

simple but cool :)

[meatygut]

i did but it doesn't hurt or anything, do u have to use bb's? cuz im using things like pebblez, dog kibbles and bird food, but nothing work

[letnetik]

I used small cut up skewers cut off the grayish part that sticks out, loaded the pieces into the grayish part of the pencil works perfectly!

[175airsoft]

Use little knex pieces i made one and that works best Once i was in class and i accidently shot my teacher but no one admitted it .

[cookie38]

Epic dude i wont forget u .u r my idol will you be my friend

[dirtnap]

Wow man. Dont use bb's. What you do is get a piece of paper and wad it up to the size that fits your barrel then staple one end of it, and make the staple pointy so it can hit the victim and go into em'.

[hoogilyboogily]

hey wat r bb's?

[jbyrd117]

butterfinger bb's

[runtherd99]

Ball Bearings

[Air_Assassin]

No they are ball bullets

[Air_Assassin]

No they are ball bullets

[DacrazyDude]

ball bearings are too heavy to fire out of a pencil gun. i think bbs refers to the kind that are shot out of an airsoft gun

[Dog Tennis]

Just a little tip, I personally find it better to have another rubber band and wrap it around the inside shaft right next to the eraser, i have the problem of the shaft getting stuck whenever I fire, its keeps it from jamming up, and its quieter too, so there, if that makes any sense ^^

[Roxas1313]

You know what would be even cooler,you take a jacket or a sweater,then take your mechanical pencil,then measure it to where you want it to be(under arm or above the arm,either one,it has to be near the wrist)now once you make that measurement,cut a hole about 3/4 of mechanical pen gun is,to where it could fit.Now you want it steady and all,so take some rubber,small rubbers,so it can be tight,and put it around your arm and your pen gun,put it where it wont move.Now you have a secret pen gun,just like in assassins creed II.

[montoya_83]

i can make a staple shooter out of a mech pencil. u take off thebottom part where the lead comes out, then you take a staple and put it in, then u pull back on tha eraser end andit shoots hella fast.

[EPL]

this is a cool instructable and very effective. little pieces of tin foil are good ammo. everybody in our class has one so we have wars.

[dirtnap]

i aint tried to get tin foil yet. Good idea. I bet it works good, but does it hurt? Most ammo doesnt unless you hit them on raw skin. Where hornets like you'd shoot outta a rubber band Hurt like hell just about anywhere.

[AWESOME9802]

We call them wasps in our school, but they got banned. If a teacher even sees you with a wad of paper, she'll put you in detention.

[i like mayo]

we made them to. But if we get caught with a rubber band we get expeled i learned that the hard way.

[dirtnap]

Yea, these work one GREAT i have one in my pocket right now. If you use stingers. it takes a lil while to make like 3 seconds or so but they have to fit just right. And if you cut the lil end off of it you can get a lil more power out of it and if you use a  tighter rubber band. I have shot nails outta mine from like 6 Foot and stuck it in teh wall.

[ruiqim]

Great design, but the barrel keeps cracking whenever I use it. Anybody got any tips?

[padricjoe]

maybe use a thinner rubber band or dont stretch it that much.another thing maybe u could wrap another band around the eraser shaft so that when it hits the end of the barrel it acts like a shock absorber,hope this helps

[Kingrayben789]

i used mine at school but used paper as ammo and me and my friend had a lil battle and shot the teacher by accident

[ruiqim]

YOu shot the teacher?!!! What did she do to you?

[pacmanjones]

thats amazing and simple

[Noobinator]

Made it with just 1 rubber band. Gotta use what you have around you :)

[danger boy]

yeah i don't even have a pencil so i used paper. (and lots of it to make it sturdy)

[sparetimer]

dude this rocks!.....i cant seem to put the whole thing together.lol

[matt_the_awsome]

i got a bunch of Q: can i just tie the rubber band hooked to the clip? whats the muzzle? what do i do to make it fire? thanx hope you read this and answer

[the fat hobbit]

it works with other pencils this is fun

[Aria_J]

YAAAAAAY!!!

[the fat hobbit]

it hurts like hell if you pinch your finger in the space where the barrel and the eraser meet

[cannedsheep]

cool i'll try it out as soon as i get a bic mech. pencil like the design friend of mine did the same thing but with springs and a lock and load system

[pandimonium]

haha. it hurts even more if you dont put any ammunition in and fire at close (i mean CLOSE) range. :)

[Class_Clown]

I cant believe kids never use this at MY SCHOOL!!!!!!