just made fist spud gun !Works!Looking for tips?

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.
Spud gun
Recruit
Recruit
Posts: 1
Joined: Wed Sep 04, 2013 1:15 am

Wed Sep 04, 2013 1:27 am

So I want to use butane. I'm using ABS, and I want to fill the chamber with out opening it. If I cut a lighter in half can I use that if I mount it correctly?
[/img]
Attachments
so it's abs I went 4" for the chamber 2" for the barrel. I used red hot blue glue for the pipes. I used a weber igniter and Sealall to hold it in.
so it's abs I went 4" for the chamber 2" for the barrel. I used red hot blue glue for the pipes. I used a weber igniter and Sealall to hold it in.
Spud Gun.jpg (5.34 KiB) Viewed 2273 times
User avatar
jackssmirkingrevenge
Five Star General
Five Star General
Posts: 26203
Joined: Thu Mar 15, 2007 11:28 pm
Has thanked: 569 times
Been thanked: 344 times

Donating Members

Wed Sep 04, 2013 4:47 am

http://www.inpharmix.com/jps/Fuel%20Met ... ghter.html

Use the lighter to fill a syringe so you can put in the right amount of gas precisely.
hectmarr wrote:You have to make many weapons, because this field is long and short life
User avatar
dart guy
Specialist 3
Specialist 3
Posts: 394
Joined: Mon May 13, 2013 7:54 pm
Location: not telling you

Wed Sep 04, 2013 5:45 am

if you look around there are many hybrid desines that have a valve that is connected to a valve that is conected to a propane tank that you fill the chamber with. but if you are gonna do that you should install a chamber fan(computer fan attatched to a 9v battery) it woll stir up everything and cause a bigger boom. also i think that you may have to open the chamber still so that air get inside. :D
Gleedaniel13
Private 2
Private 2
Posts: 21
Joined: Mon Aug 05, 2013 11:31 pm
Contact:

Mon Oct 21, 2013 8:25 pm

Use the lighter to fill a syringe so you can put in the right amount of gas precisely.
I can't even imagine that even a lighter can be use with this one. Is it not dangerous?
User avatar
Technician1002
Captain
Captain
Posts: 5189
Joined: Sat Apr 04, 2009 11:10 am

Tue Oct 22, 2013 11:58 pm

I want to fill the chamber with out opening it.
Remember that part of filling the chamber includes both a fresh charge of fuel and the proper amount of fresh air. How do you plan to purge the chamber of burnt fumes if you don't open the chamber? Air compressor?
User avatar
jackssmirkingrevenge
Five Star General
Five Star General
Posts: 26203
Joined: Thu Mar 15, 2007 11:28 pm
Has thanked: 569 times
Been thanked: 344 times

Donating Members

Wed Oct 23, 2013 7:54 am

Gleedaniel13 wrote:I can't even imagine that even a lighter can be use with this one. Is it not dangerous?
Why would it be dangerous?
hectmarr wrote:You have to make many weapons, because this field is long and short life
Post Reply