Combustion Cannons

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SpudFiles Potato Gun Commercial

Last post by quinn whitsitt
Replies: 15
by PCGUY » Tue Oct 29, 2013 10:54 pm
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First post

I've been wanting to get in some spud shooting action this fall before the weather got cold. I know it's been a while since I filmed anything for...

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thank you for creating this website is there anything i can do to help
15 Replies

945137 Views

Last post by quinn whitsitt
Fri Feb 09, 2024 2:38 pm
Sparker Reference Guide

Last post by quinn whitsitt
Replies: 45
by rcman50166 » Tue Feb 05, 2008 4:19 pm
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First post

OK. Everyone always seems to know more than me in almost every topic on this site. But this is my domain! High voltage electricity is what i know...

Last post

great job how can i help the fourms
45 Replies

305979 Views

Last post by quinn whitsitt
Fri Mar 01, 2024 10:52 am

Topics

ignition coil question

Last post by spudzinger
Replies: 9
by singularity » Tue May 08, 2007 9:31 pm

First post

alright as of right now i have a 3 to 12 kHz ne555 pulse generator, and ignition coil and a temporary power source. what i need is the cable to...

Last post

sweet, well i can get one from my dads many dead Saabs or maybe from my Bronco II or one of my uncles dead motorcycles (for lighter duty?)

9 Replies

3118 Views

Last post by spudzinger
Fri May 11, 2007 5:42 pm
The "Endgegner" full steel spudgun

Last post by Billy Bob
Replies: 18
by Billy Bob » Sat May 05, 2007 7:49 am
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Hi,

i have just finished my new spudgun. I called it Endgegner .
Thats two spudguns fixed together.
It takes a long time to build and to varnish...

Last post

Thanks.

A stand was very usefull. I have to think about.
I made a little video about shooting. It makes so much fun if you shoot both the spudgun...
18 Replies

7105 Views

Last post by Billy Bob
Thu May 10, 2007 3:52 am
Propane Question

Last post by spudzinger
Replies: 5
by bang_bang » Wed May 09, 2007 12:43 am

First post

Hello, Im new to the forum and am currently building my 5th spudgun I am planning on a combustion with all the bells and whistles, but I would like...

Last post

You can find old Coleman double burner stoves for like $1 at garage sales these days. So, I'd say just buy an old propane stove and rip it apart,...

5 Replies

2261 Views

Last post by spudzinger
Wed May 09, 2007 5:53 pm
help with burntlatke style vent valve

Last post by JDP12
Replies: 4
by JDP12 » Tue May 08, 2007 12:11 pm

First post

Hey all, well after seeing sgort's blue flame III, and burntlatke's vent valve thing, I want to make one similar to that.

Here is my design..Please...

Last post

Okay thanks noname.

4 Replies

1572 Views

Last post by JDP12
Tue May 08, 2007 7:41 pm
UPCL-495CI advanced combustion launcher video.

Last post by mega_swordman
Replies: 6
by SpudBlaster15 » Tue May 08, 2007 12:23 am

First post

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras nec placerat erat. Vivamus dapibus egestas nunc, at eleifend neque. Suspendisse...

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That's really cool. A picture amy be a thousand words, but a video is worth more than a thousand pictures. But where would that leave real...

6 Replies

4062 Views

Last post by mega_swordman
Tue May 08, 2007 3:02 pm
maximum projectile weight for a combustion?

Last post by jimmy101
Replies: 8
by JDP12 » Mon May 07, 2007 8:54 am

First post

Hey all,

Well i want to build some PVC rockets like those on the burntlatke website and weight them, but on spudtech Joel says that you aren't...

Last post

I agree with Boiling, there really isn't a safety issue with a too heavy projectile. A properly glued gun built from pressure rated pipe using...

8 Replies

3695 Views

Last post by jimmy101
Tue May 08, 2007 11:02 am
mini combustion

Last post by super spuder
Replies: 3
by super spuder » Tue May 01, 2007 10:54 am

First post

this is my mini combustion that i built in about 5 minutes. it is made from a pencil sharpener a slushy straw, and a thumb tack. it use to have a bbq...

Last post

hahahaha i dont want to try that

3 Replies

1743 Views

Last post by super spuder
Sun May 06, 2007 10:32 am
meter pressure and flexible hose pressure rating?

Last post by JDP12
Replies: 35
by JDP12 » Tue May 01, 2007 9:20 pm
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Hey all...Well I posted this in a different thread...But no one answered..So I just want to check with you guys... It just seems like such a low...

Last post

K have fun with that...
35 Replies

9730 Views

Last post by JDP12
Fri May 04, 2007 7:39 pm
mini inline

Last post by LosBuenos
Replies: 16
by LosBuenos » Sat Apr 28, 2007 2:26 pm
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is there any reason I shouldn't make a mini inline cannon? because i have never seen one on this site and i want to build one

Last post

i used Static Guard for my old, full sized cannon when i had a lantern sparker and Oust wouldn't work then. then i put a piezo in the cannon and...
16 Replies

4873 Views

Last post by LosBuenos
Fri May 04, 2007 2:51 pm
New Device - Thanks Jimmy!

Last post by VH_man
Replies: 16
by mark.f » Sat Apr 28, 2007 7:29 pm
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First post

It was quite a while ago that Jimmy gave me a link to a CDC website showing the making of a simple peak pressure recording device employed to record...

Last post

i have one of these tire guages and i turned it into a one-way pneumatic ram...... kinda fun.......... punched holes in stuff. ill use it as a...
16 Replies

7045 Views

Last post by VH_man
Thu May 03, 2007 9:19 pm
Bug spray???

Last post by spudzinger
Replies: 16
by JDP12 » Sun Apr 29, 2007 6:54 pm
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Well I tried my gun today....But it didn't work.....spark gap was too wide...So i'll fix that up.....

But I used bug spray as a fuel....And while it...

Last post

Yeah well alot of the fuels noobs use will eat away at the barrel, cement, etc. I found that by far the worst enemy of my first spudgun (a single...
16 Replies

5633 Views

Last post by spudzinger
Thu May 03, 2007 5:43 pm
Problems with Launch Range Calculator

Last post by JDP12
Replies: 13
by JDP12 » Thu May 03, 2007 7:44 am

First post

Hey all, well I am trying to calculate performance of my combustion using this

and in order to get a true reading..I have to know the muzzle...

Last post

I don't have a solver..The closest thing is GoalSeeker..Is that what you are talking about?

EDIT: Yea it seemed to work..Seeing as I haven't fired...

13 Replies

3676 Views

Last post by JDP12
Thu May 03, 2007 5:36 pm
Can I get a spark on demand?

Last post by GalFisk
Replies: 33
by SilentJ20 » Wed Apr 25, 2007 8:10 am
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First post

Hello everyone. Been around SpudTech a bit but since it's closed, this is where all the knowledge is at.

I don't know too much about electrical...

Last post

The cap will have a voltage rating, I'd guess less than 400V. The actual voltage should be somewhat lower.
You can block the gap with a piece of...
33 Replies

11767 Views

Last post by GalFisk
Thu May 03, 2007 4:08 pm
Mini FULL-metal cal. 4.5 mm

Last post by paaiyan
Replies: 7
by ahabich » Tue May 01, 2007 8:42 am

First post

Hi!
I just ended my first gun, caliber is 4.5 , I used small metal barel for PCW glue, Cu pipe, brass 4.5 pipe (8 length) .
Please comment!

my...

Last post

If I remember correctly, 4.5mm is the size of a .177 cal. pellet right?
I would post a good comment, but I can't exactly SEE the gun! :?

Yea,...

7 Replies

3228 Views

Last post by paaiyan
Thu May 03, 2007 3:05 pm
Ghetto Gun V2

Last post by noname
Replies: 11
by noname » Wed May 02, 2007 7:24 pm

First post

This thing is so much fun! :D
It was my first combustion gun ever, and I'm still messing around with it. You can find the first version in the...

Last post

I might get in trouble, especially after Pimpmann told me not to.

11 Replies

3544 Views

Last post by noname
Thu May 03, 2007 8:31 am
STAG-1

Last post by spudzinger
Replies: 19
by PCGUY » Sat Feb 12, 2005 5:01 pm
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First post

STAG 1

Provided By - Bartman007

This is my first cannon. It's a 4x12 Sch40-PW PVC chamber, 4x2 ABS reducer, short section of 2 Sch40-PW PVC, 2...

Last post

Nice job! Definately a cool looking gun, looks like you could fit in a scuba or similar tank (nobody correct me, 'cause I know it wont fit) to make...
19 Replies

16700 Views

Last post by spudzinger
Wed May 02, 2007 5:07 pm
propane and oxygen

Last post by super spuder
Replies: 37
by super spuder » Fri Apr 06, 2007 10:27 pm
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ok. i have spent like the past 2 weeks reading every thing i can about potato guns on this web site and many other web sites to. up until now all i...

Last post

and i am prepared for like 5 people to answer you are an idiot to use propane and pure oxygen but oh well. i don't care as long as one person answers...
37 Replies

11825 Views

Last post by super spuder
Wed May 02, 2007 4:50 pm
spark in steel chamber

Last post by UdderDestruction
Replies: 16
by singularity » Wed Apr 25, 2007 5:58 pm
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First post

im working on a cannon that runs on hydrogen, but i have ran into a problem. the only pipe that could possible wistand a hydrogen blast safely is...

Last post

fuck guys just have the chamber be the ground or w/e (attach one of the wires to the chamber) and have a wire go in be away from the steel far enuf...
16 Replies

4657 Views

Last post by UdderDestruction
Tue May 01, 2007 10:34 pm
propane tank and regulator questions

Last post by meatballs
Replies: 3
by meatballs » Mon Apr 30, 2007 2:29 pm

First post

Two questions: are there smaller size propane tanks than the 14.1 oz kind used for blow torches? i looked but couldn't find any. i just think it...

Last post

thanks guys, i think i'll stick with the 14.1 oz propane tank, rather than the ~16 oz camping one, i like the shape better. i put the cannon together...

3 Replies

1474 Views

Last post by meatballs
Tue May 01, 2007 2:17 pm
Can I use either one of these stun gun circuit diagrams?

Last post by singularity
Replies: 16
by JDP12 » Mon Apr 30, 2007 4:09 pm
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First post

Hello All,

Well I want to install stun gun ignition into my cannon....But stun guns are illegal in Wisconsin.. :(

Soo I want to just build the...

Last post

if you do decide to build your own circuit its going to b hard to get the transformers. i say either buy a stun gun or rig up an ignition coil setup
16 Replies

5842 Views

Last post by singularity
Mon Apr 30, 2007 10:24 pm
No Spark!

Last post by Abigor
Replies: 5
by souljahz_unite » Sun Apr 29, 2007 4:21 pm

First post

K so i just finished building my cannon, installed the ignition today but the glueing was all friday night. Everything for sure has cured and so...

Last post

if you start losing your spark or it won't spark i would fiddle about with it first and then use a file to wear the metal down a bit, it works for me

5 Replies

2779 Views

Last post by Abigor
Mon Apr 30, 2007 11:46 am
Car Distributor and Spark plugs

Last post by jimmy101
Replies: 1
by heavymetalsarge » Mon Apr 30, 2007 9:32 am

First post

this is my idea, but i can't do it now (lack of funds)

i was just recently thinking while working on an engine about the Distributor that sends...

Last post

Yep, that'll work just fine.

You'll need an old style distributor from a car, a way to spin its shaft, a fairly high powered 12V supply (like a car...

1 Replies

1565 Views

Last post by jimmy101
Mon Apr 30, 2007 10:59 am
Duffle bag gun

Last post by hi
Replies: 12
by Los Frijoles » Sat Apr 28, 2007 9:47 am

First post

I made this gun a while ago, but I never posted it here. It is a pneumatic launcher with an oversized chamber (18 x3 ) with electric ignition. I used...

Last post

when i saw duffle bag gun i thought it was designed to fire inside one. that wold be cool to have something like that.

if you had a shorter barrel...

12 Replies

4707 Views

Last post by hi
Mon Apr 30, 2007 12:18 am
my new cool smaller gun

Last post by Flying_Salt
Replies: 8
by tylerthetatertosser » Mon Apr 16, 2007 9:24 pm

First post

i thought today at scholl that i wanted to make a new gun. i wanted to make a smaller more portable loud gun.

i use about a foot and a half of two...

Last post

why do people always take pictures of their toes along with their cannons?
IM just kidding, nice gun
Well, maybe some of us have a foot fetish. Duh....

8 Replies

4869 Views

Last post by Flying_Salt
Sun Apr 29, 2007 9:23 pm
Propane meter questions

Last post by JDP12
Replies: 18
by JDP12 » Sat Apr 28, 2007 10:10 pm
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First post

Hey all,

Well after talkin it over with my dad he's agreed to let me use propane and build a meter!! Yay!

I'm going to build it according to...

Last post

EDIT: K I calculated it out...Here is what I came up with...Let me know if I did it correct please....

152.550*.042= 6.4071 cubic inches of propane...
18 Replies

4291 Views

Last post by JDP12
Sun Apr 29, 2007 7:37 pm

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