Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 74 users online :: 5 registered, 0 hidden and 69 guests


Most users ever online was 155 on Mon Aug 15, 2016 1:40 am

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], MSNbot Media, Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

My first, dangerous, spudgun

Built a combustion cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
Sponsored 
  • Author
    Message

My first, dangerous, spudgun

Unread postAuthor: Tobin » Sat Jun 18, 2011 9:23 am

This was the first gun, ive made it togheter with a friend. At the beginning it was just a ordinary spray-and-pray. But after som time i added a syringemeter and a chamber fan. We use butan as fuel.

We realized from the start that building a spudgun of this kind of pvc is a bit dangerous, its not preassure rated at al. Thats why we used a couple of fittings so we got double walls here.
We did also always had some kind of safety catch like in the beginning we didnt screw the parts togheter, then the gun blew appart we screwed all the parts togheter except the pipe.
Then the cap started to fly away sometimes. At the time we had those standard gray tees with caps that is for indoor use.

So, then i bought this orange piece that is for outdoors use, rated to Sn8. But at the same time i puted a fan into the camber, and i made a syringemeter, so this cap also flyed away...

Now i have added the threaded rod to hold the cap at place. Since that i doesnt hafe any safety catch left so i dont dare to shot because i think it will maybe blow up. Will fire it soon with a twine on safe distance a couple of times in cold weather to ensure that it wont blow up.

Will put up a movie later

As you can se the gun is mounted at a piece of wood so that i can fire it from a distance with a twine.

Image


The spark gap and the threaded rod.

Image
  • 0

Last edited by Tobin on Sat Jun 18, 2011 2:30 pm, edited 2 times in total.

Tobin
Private First Class
Private First Class
 
Posts: 39
Joined: Mon Aug 16, 2010 5:25 pm
Reputation: 0

Unread postAuthor: Technician1002 » Sat Jun 18, 2011 2:25 pm

I'm with you on calling it dangerous. Wow. Thanks for listening to your self preservation instincts. Not everyone has that.

Great photos by the way. Most people on here can't take photos that clear of close up items such as your spark gap. Well done.
  • 0

User avatar
Technician1002
Chief of Staff
Chief of Staff
 
Posts: 5190
Joined: Sat Apr 04, 2009 11:10 am
Reputation: 14

Unread postAuthor: DYI » Sat Jun 18, 2011 6:10 pm

Nothing in the recent ghetto contest could compare to this. While those entries seemed like well-thought-out garbage, this is a pure, make-it-up-as-you ghetto masterpiece. I rarely ever comment on showcase threads, but I feel it necessary to congratulate you on one of the most entertaining builds I've seen in quite a while. You're doing it so wrong that somehow you're doing it right, and for that rare achievement I bestow upon you the coveted Spudfiles Ghetto Award:

Image

Excellent work, sir :D
  • 0

Spudfiles' resident expert on all things that sail through the air at improbable speeds, trailing an incandescent wake of ionized air, dissociated polymers and metal oxides.
User avatar
DYI
Lieutenant General
Lieutenant General
 
Posts: 2861
Joined: Sat Jul 07, 2007 8:18 pm
Location: The People's Republic of Canuckistan
Country: Turks and Caicos Islands (tc)
Reputation: 9

Unread postAuthor: 52ndbattalionairsoft » Tue Aug 23, 2011 11:47 pm

Nice work there bud keep it
Up for you u get a cookie and a dollar
  • 0


52ndbattalionairsoft
Private
Private
 
Posts: 11
Joined: Tue Aug 23, 2011 11:02 pm
Reputation: 0

Unread postAuthor: mattyzip77 » Wed Aug 24, 2011 12:36 am

I'm speechless!! :silent: :silent: :silent:
  • 0

Go Bruins!!!!
User avatar
mattyzip77
Donating Member
Donating Member
 
Posts: 1249
Joined: Tue Jun 28, 2011 12:22 pm
Location: Taxachusetts
Reputation: 0

Unread postAuthor: Crna Legija » Wed Aug 24, 2011 1:54 am

52ndbattalionairsoft wrote:Nice work there bud keep it
Up for you u get a cookie and a dollar


You should read the date before posting to make sure your not kicking up a dead topic for no reason. If you have something important to add then its fine but just saying good work on old thread is against the rules.
  • 0

Attachments
postdate.JPG
'' To alcohol... The cause of, and solution to, all of life's problems.”
--Homer Simpson

Add me on ps3: wannafuk, 8/11/11 cant wait
User avatar
Crna Legija
Major General
Major General
 
Posts: 2333
Joined: Sun Jul 20, 2008 5:14 am
Location: australia
Reputation: 0

Return to Combustion Cannon Database

Who is online

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], MSNbot Media, Yahoo [Bot]

Reputation System ©'