Introduction: Mini Potato Gun Hot Glue Gun

here is a neat little gun I built to help with how hard it is on you're finger to light that tiny pizo ignighter. it fires airsoft bbs at about 200-250 fps do not try to build this gun unless you have experience with mini potato guns or else you will have a very hard time building it and trouble shooting. this gun is very sensitive on what it uses for fuel.

UPDATE the pizo ignighter broke so I am going to try my luck with a camera flash. also I have upgraded the barrel to a metal one I got out of an old airsoft gun. and last using butane nearly doubles the power of the gun and is sounds like a 22cal rifle going off


UPDATE

I have stopped using the cap right now I just hold my finger over the hole and it works just fine if not better

Step 1: Get All Youre Stuff

1 old hot glue gun

2 good hot glue gun that works

3 bic pen all taken apart so all you have left is the pen body

4 a highlighter

5 a pen cap

6 pizo ighightor

7 2 thumbtacks

8 some kind of brass part from a cars brake line?

8 nut glued into bottlecap


tools

1 phillips screwdriver
1 multy tool
1

Step 2: Take Apart Hot Glue Gun

remove all the stuff in you're hot glue gun keeping the trigger and glue the pezo ignighter so when you pull the trigger the pezo clicks

Step 3: Combustion Chamber and Barrle

cut the highlighted in half and cut the end off the pen cap(the purple thing) then use it to hold the pen to the highlighted. and glue together glue the brake line fitting on the cut end of the highlighter. and enter thumbtacks. on both sides. I used one screw so I can tune the spark gap size and cut cap tip so barrel can fit thru it this will hold it secure to the hot glue gun.

Step 4: Bringing Hot Glue Gun to Combustion Chamber

hook up all wiring from the pizo to the combustion chamber and click it. you should see a spark jump from the pins. if not then make it work. and set the combustion chamber and barrel in there new home. DO NOT GLUE SO YOU CAN REMOVE IT TO CLEAN YOURE GUN. and don't chop off the end of the barrel. it will reduce the power of you're gun and it wont look like an uzi anymore.

Step 5: Put the Case Together

put the case together and bolt it down and look in the back where the bolt pops out. and pull the trigger do you see a spark if you do than good. if not then take it all back apart and find the problem.

Step 6: Time for the Test.

put propane or butane down the back of the gun. I prefer butane. screw on the back and drop something down the barrel like a 6mm bb. point at something and fire. if nothing happens press 5 more times open cap and lightly blow into back and try again.

Comments

author
admin made it!(author)2008-08-08

This is a great Instructable, but you need to add a main image of the final project to the intro step. Please do that and leave me a message when you have so that we can publish your work. Thanks!

author
gemoney made it!(author)2013-08-28

how much fps do u get out of this if u use butane compared to hairspray

author
gemoney made it!(author)2013-08-22

can u use a threaded air soft barrel and put a piece of paper so the bb would not fall down instead of dropping it down the barrel

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gemoney made it!(author)2013-08-13

ok do u know where u can get a multi tool because I opened half of it and the parts are out of place now and I cant open the case now

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gemoney made it!(author)2013-08-10

can u fire paper darts from it

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nibbler125 made it!(author)2013-08-12

You can fire just about anything out of it that you can from any other mini potato gun

author
gemoney made it!(author)2013-07-18

but the gas would propel the bb out of the barrel allowing u to put in new gas I guess

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gemoney made it!(author)2013-07-17

how do u make a magizine for the gun so u don't have to drop the bbs down the barrel

author
nibbler125 made it!(author)2013-07-17

Im not sure how you would make that work, you need to have an open breech so when you put in new gas the old exhaust can go out the barrel.

author
benduy made it!(author)2011-06-13

i made somthing similar, a MAGNUM out of a old cap gun and redbull shot (empty of course) ans a small peice of pipe to fit snugly in the shot, and made it up and it wasnt working , so i tipped it back and fired, no eye brows and eye lashes :( moral of the story, lighter fluid is heavier than air so it sinks down

author
cschoemans made it!(author)2011-04-25

this thing is insane. I made a bigger chamber and use a special mix of 60 percent propane and 40 butane did need to put in some isolation because i started melting my gun because chamber is made of magnesium so mare heat but no elctric conduction did need to use a drill but still great design

author
billbobby made it!(author)2010-04-04

 can you use axe for propelant?

author
ilpug made it!(author)2011-03-03

You most definetly can. however, it will smell funny.

author
haaiids made it!(author)2010-04-16

hello. i have a hot glue gun but it has the triangle screws...any ideas of where to get the screwdriver ??..thanks.

author
ebubbula made it!(author)2011-02-24

I had that problem once too i just uzsea a real small alan wrench

author
ebubbula made it!(author)2011-02-24

Sorry used not uzsea

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nibbler125 made it!(author)2010-08-22

once again only use butane or propane its a finicy gun and will not fire as good as it can with hairspray. rember hairspray and deoderent are only flamable beacuse of one or two parts. all the stuff that wont burn just gets left behind. butane and propane is all boom and no poop burning cleaner and you can use a higher mix ratio.

author
ZachMaker made it!(author)2010-08-22

i have no idea what ur talking about when u say hollow compressor thing u dont have a picture of it outside the highliter and i dont know what 2 do could u explain but other than that its a really awesome desighn

author
nibbler125 made it!(author)2010-08-22

found out its not a air comresser part. Its something from a brakeline from a truck. (i save everything) I would go to autozone and search the random fitting area untill you find something useful.

author
mattccc made it!(author)2010-04-12

anything that has butine propane or any other flamable substance in it will work

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sjoobbani made it!(author)2010-03-14

 Nice, 

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mossjo14 made it!(author)2009-08-11

can you use hairspray

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nibbler125 made it!(author)2009-08-15

i wouldent mostly beacuse hairspray gunks up youre gun

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jcosi97 made it!(author)2009-12-10

how about  deodorant

author
MadBricoleur made it!(author)2009-11-27

I use rubbing alcohol put in a mini spray bottle. one short burst of it when held about 4 inches away from the chamber opening is good for a shot.

author
Kaiven made it!(author)2008-10-13

if I don't have butane or propane, what could I use?

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nibbler125 made it!(author)2008-10-14

i got it to work on zippo fuel but youre best bet it to get a butane jet lighter for like 5 bucks and just press the button so gas comes out and hold it for a few seconds

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Kaiven made it!(author)2008-10-14

i think i'll try hairspray or alcohol in a spritz bottle, but if I need to I will use a lighter.

author
franklinonline made it!(author)2009-08-06

achol if you put too much will kep burning, maybe meling the plastic or softning and making it blow up next time

author
firefighter1333 made it!(author)2009-04-22

sry for asking so much but i got an other question sooo hope u asnwer well here it is; for some kinda reason ma ignitor keeps breakin the whole time (so i need to replace it all the time;ANOYIN), it breaks each time on the place where the 'button' is (like the neck) do u kno how to solve this (alrdy tried to make te neck stronger; didnt work, there from lighter wich are sumthin like 10 cents a pice btw...) sooo...

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franklinonline made it!(author)2009-08-06

its probalby wiggline around the the curve of it is bending and snapping it? try moving it more near the hing of the handle

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kwlweapons made it!(author)2009-07-24

Hm if the creator is still there... some improvents/mods I would do would be 1. Make a sparkstrip design to improve reliabal ignition.. with a sparkstrip you can have up to 4 SMALL sparks in your chamber so that it can fire in the first clicks .. This is extremely helpful specially in mini guns. 2. For fuel I would recommend to just get a refillable butane mini tank and attached it onboard so that you can take it anywhere and shoot whenever you feel like it.. plus their only like 2 bucks and you'll get atleast 400 shots out of one. 3. For anyone out there having problems with the back "air compressor part" what I would do is just find a pill bottle or a w/e bottle THAT HAS THE SAME DIAMETER NECK OF THE BACK of your highler.. then just glue it onto the back and use the screw on cap that came with it... PROBLEM SOLVED Any questiones, ask... Anyway good job on the build im gonna build myself one... just a little bit more "Advanced" i might post it if im not to lazy

author
Flash+Gordon made it!(author)2009-06-14

Barrel is spelt Barrel not Barrle

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aahutner made it!(author)2009-06-13

when i made a mini potato gun it was very unweildy but this design looks great. i love how it fits into the glue gun. it looks nice

author
stephenniall made it!(author)2009-04-27

I bet you could add like a sliding mechanisimg in the barrel infront of the bit that lights up and use it to slide put ball bearings in Slide back shoot etc lol

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firefighter1333 made it!(author)2009-03-22

sweet looks nice, but i think it looks more like a luger than like an uzi (sorry) nice idea 5*

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Flash+Gordon made it!(author)2009-04-05

Lugers are awesome

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firefighter1333 made it!(author)2009-04-21

100% tru, actualy, to make it look more like a luger he has to paint it, add some kind a round thingummy at the bottom of the handholdthing (from the clip) and some kinda tube above (on the place where he has the space where u can see the chamber) for theignition hammer thing. just fros saying (:P)

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Flash+Gordon made it!(author)2009-04-21

Yeah and it might even be able to pass off as a luger. A Potato Luger.

author
firefighter1333 made it!(author)2009-04-22

lol, only i think it isnt a good idea to use in real war lol XD (*sput* reloadin *only click* say darn and reload again sput say yes he is hurt (right...)) lol

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Flash+Gordon made it!(author)2009-04-22

That would be funny

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invisiblebluerobot9 made it!(author)2009-04-10

How far does this thing shoot?

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nibbler125 made it!(author)2009-04-12

good shot will go 30 or 40 yards

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firefighter1333 made it!(author)2009-04-22

if yo chamber is sumthin like 1 inch wide and 5 inch long and ur barrel is 1/5 inch wide and 8 inch long and u hav no leaks how far will it probably shoot then (please could u try to guess (cant measure maself cuz i live in very windy open land...)) pls answer...

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NIINO9 made it!(author)2009-02-16

do you have a video ?

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nibbler125 made it!(author)2009-03-19

yes its on youtube but normaly i can make the gun shoot allot better

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Father+Christmas made it!(author)2008-12-25

i see this having airsoft potential, namely because of the pen barrel lol

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apr1694 made it!(author)2008-11-10

wat do you use as fuel

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nibbler125 made it!(author)2008-11-13

propane or butane

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grevious made it!(author)2008-09-26

"some kind of hollow air compressor part" what the hell is that? well if i read on i should find it.......... :P

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Bio: i like to make wierd stuff im a nice guy if you are nice to me i collect lighters and im always willing to help ... More »
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