Instructables

Step 1: What you will need.

Picture of What you will need.
you will need,

1.cheap Bic roundstick pen
2.sand paper
3.very small nail
4.lighter, candle or small drill bit(same size as nail) and drill
5.Plastic report clip.(peice of plastic that clips onto papers to hold them together but you can use about anything that can fit in the pen, blocks part of it off and can be cut to size)
6.Retractable Sharpie. (we need the spring from it)
7.pliers

Step 2: Ready the pen

Picture of Ready the pen
Remove tip and ink tube.

Step 3: Remove the ink tube

Picture of Remove the ink tube
Remove the ink tube

Step 4: Sand the tip.

Picture of Sand the tip.
sand the tip of the pen so it can slide out of the pen tube easily.

Step 5: Savage the Sharpie

Picture of Savage the Sharpie
Take apart the sharpie and remove the very large spring that fits perfectly in the pen tube.

Step 6: Ready the spring

Picture of Ready the spring
put a small piece of tape on the sping so it doesn't fly out when fired.

Step 7: Fire! Fire! Yea! Yea!

Picture of Fire! Fire! Yea! Yea!
use a candle or lighter to heat up the nail.

Step 10: Aim and fire

to load the gun just put the spring in the pen and jam the tip on the sping and insert the nail to lock it in place. to fire just aim and pull the pin
 After a few weeks of refining our design in our spare time, my friend and I made one that shoots 120ft and fired a sharpened knex piece out of the pen casing. It shot through quite a few pieces of cardboard. We used 4 rubberbands as a membrane.
 Hey! Make an instructable on that!
mo55 years ago
do you put the spring in first or do you put the pencil in first
I made on of these once... the only difference with mine is instead of shooting pens i just fired the ink tube. Also, i used a rubber band instead of the spring.
you suck rubberbands are horible
cool
bigpinecone7 years ago
(removed by author or community request)
oh but holes are advanced technology without them how would we breath
tubes, maybe? holes aren't advanced at all though, cavemen had 'em
but think without them we couldnt live like a door a one way valve speaker gaurd
true, but think about it, how are they advanced? i can make a hole with my hand. now something advanced, like a helicopter, now we may have problems making a heli with a hand.
tubes have holes in them yea but u dont think we invented to hole nature did caves dinosaurs
true, u have a point. but like i said, how are they advanced? things like boats and aircraft are advanced, holes are the building blocks for those kinds of things. holes themselves aren't advanced in any way. they've been around before our solar system was created.
I hate that commercial too. "Introducing the new advanced quick release system" They drilled holes in pills, I chew them, big deal. If they put microchip cellular inhancing nanobots in the holes... Thats advanced! Also, I have a tri pen that when you twist the clicky thing it goes from pen to mechanical pencil to computer touchpad pen. I'm looking for a pen shooting instructable I can mod with this so that I can have three rounds in one "clip". ~Peace
does it ave a laser pointer? Ive seen one that does,in cape cod
badhacker6 years ago
looks kinda complicated for a pen gun but it so cool when it shoots!
bigboom6 years ago
cool
pyro22 (author) 6 years ago
:-) yea I know. I have a dog and cat who were shedding at the time and we hadnt vaccumed for a couple days.
omg ur floor is so dirty in this pic
tzual7 years ago
and.... do you put the yellow thing inside the pen and push it against the spring?
pyro22 (author)  tzual6 years ago
yes. The yellow thing is a spacer for the spring
tzual7 years ago
can i just use any other spring like those small ones?
I've noticed many videos have TV or Radio in background (just saying)
A little more complex than some designs but this might be more powerful than some.
pyro22 (author) 7 years ago
Also to clear it up i might be making a how-to video soon.
pyro22 (author) 7 years ago
sorry, I know it slightly confusing, but the last steps where hard to desribe. if you have any questions on it just ask.
Pro

Get More Out of Instructables

Already have an Account?

close

PDF Downloads
As a Pro member, you will gain access to download any Instructable in the PDF format. You also have the ability to customize your PDF download.

Upgrade to Pro today!