oh my god

Boom! The classic potato gun harnesses the combustion of flammable vapor. Show us your combustion spud gun and discuss fuels, ratios, safety, ignition systems, tools, and more.
Post Reply
User avatar
MrCrowley
Moderator
Moderator
Posts: 10078
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Been thanked: 3 times

Wed Apr 04, 2007 5:49 am

Well im telling you now that you did not use pressure rated PVC. Even if you glued it wrong it would of 'seperated' and not blown up. Safety first.
Top
User avatar
joannaardway
Corporal 5
Corporal 5
Posts: 949
Joined: Mon Oct 09, 2006 4:57 pm
Location: SW Hertfordshire, England, UK.

Wed Apr 04, 2007 6:44 am

I think unrated pipe is the only possibilty.

Because my BS-o-meter is reading fairly low for this one, but my n00b-o-meter has peaked.
Novacastrian: How about use whatever the heck you can get your hands on?
frankrede: Well then I guess it won't matter when you decide to drink bleach because your out of kool-aid.
...I'm sorry, but that made my year.
Top
sandman
Corporal 2
Corporal 2
Posts: 672
Joined: Thu Mar 15, 2007 6:59 pm

Wed Apr 04, 2007 8:18 am

where did you get your BS-o-meter, i need one.

i will believe when i see, give us pics
Top
User avatar
chaos
Sergeant 3
Sergeant 3
Posts: 1205
Joined: Wed Jan 17, 2007 8:31 am

Wed Apr 04, 2007 8:36 am

i got a give-a-f u c k-o-meter hehehe

Image
Top
User avatar
paaiyan
First Sergeant
First Sergeant
Posts: 2140
Joined: Wed Dec 27, 2006 10:03 pm
Location: Central Oklahoma
Been thanked: 1 time

Wed Apr 04, 2007 11:18 am

I think it's an ID Ten T error. But that's just my opinion.
Top
User avatar
imjustpk
Private 4
Private 4
Posts: 63
Joined: Sun Jan 28, 2007 5:12 am

Wed Apr 04, 2007 12:52 pm

If the pressure was allowed to escape the barrel, then I would think the explosion to be minimal rather than disastrous. What are the ramifications of using wax in a combustion? I know that the short duration of the burst probably wouldn’t melt it, but I know materials react differently when both heat and pressure are applied to them, such as superplasticity.
Top
pyromanic13
Corporal 5
Corporal 5
Posts: 913
Joined: Wed Oct 19, 2005 7:54 pm

Wed Apr 04, 2007 12:53 pm

I call shens until farther notice
Movie dialogue: "The good die first."
Tom: "But most of us are morally ambiguous, which explains our random dying
patterns."
Top
locksmith
Specialist
Specialist
Posts: 119
Joined: Tue Mar 20, 2007 4:55 pm

Wed Apr 04, 2007 1:02 pm

propane only?i think there is more to this story.
Top
locksmith
Specialist
Specialist
Posts: 119
Joined: Tue Mar 20, 2007 4:55 pm

Wed Apr 04, 2007 1:04 pm

hey that wasnt wax it was c-4 opps
Top
User avatar
pyromaniac
Corporal 4
Corporal 4
Posts: 805
Joined: Tue Feb 27, 2007 7:18 pm
Location: MO

Wed Apr 04, 2007 1:18 pm

Can you atleast give pictures of the cannon.

lock smith dont repost 2 mins after your first. use the edit
:pottytrain3:
Top
User avatar
A-98
Corporal 5
Corporal 5
Posts: 921
Joined: Thu Apr 27, 2006 7:41 pm
Location: Santa Barbara, CA

Wed Apr 04, 2007 1:33 pm

i to agree that he was probably using cellular core or something else that wasnt intended for pressure.

@locksmith dont double post, and c-4 wont explode due to open flam, you need a detenator. note the retard who tried taking down a plane by holding a lighter to his c-4 filled shoe.
There are rules, and then there are hundred dollar bills.
Top
User avatar
joannaardway
Corporal 5
Corporal 5
Posts: 949
Joined: Mon Oct 09, 2006 4:57 pm
Location: SW Hertfordshire, England, UK.

Wed Apr 04, 2007 2:06 pm

Just a moment. I'd forgotten my error code machine... *types in a few figures*

Yup, as I expected. Error code: N07-1337
Novacastrian: How about use whatever the heck you can get your hands on?
frankrede: Well then I guess it won't matter when you decide to drink bleach because your out of kool-aid.
...I'm sorry, but that made my year.
Top
User avatar
paaiyan
First Sergeant
First Sergeant
Posts: 2140
Joined: Wed Dec 27, 2006 10:03 pm
Location: Central Oklahoma
Been thanked: 1 time

Wed Apr 04, 2007 3:39 pm

Hahahahaha. That's a new one joanna.
Top
User avatar
risto
Specialist
Specialist
Posts: 144
Joined: Sat Feb 24, 2007 8:07 pm
Location: Citrus County, FL, USA
Contact:
Contact risto

Wed Apr 04, 2007 4:53 pm

i've used NSF-DWV before for a combustion and had my ammo jam when i fired, but all it did was hold the pressure inside. Combustion doesnt generate enough pressure to explode PVC (30-50 PSI) from what I have found.

maybe it was cellular core?

or maybe there was already a crack in the chamber?


but i agree with you all, WE NEED PICTURES!!!!
Top
clide
Corporal 3
Corporal 3
Posts: 784
Joined: Sun Mar 06, 2005 3:06 am
Location: Oklahoma, USA
Been thanked: 1 time

Donating Members

Wed Apr 04, 2007 5:08 pm

The PVC could have had a hairline crack in it.

I've had a piece of pressure rated PVC fail in a situation where the only explanation I could come up with is that the PVC was weakened by a crack. Luckily it wasn't the pressure vessel or else I would have had a bad day.

However, if I had to guess I would say this was most likely made of drainage pipe.
Top
Post Reply

Return to “Combustion Cannons”