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 71 users online :: 4 registered, 0 hidden and 67 guests


Most users ever online was 218 on Wed Dec 07, 2016 6:58 pm

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

The Team
Administrators
Global Moderators
global_moderators.png CS

fully auto jobbie

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
Sponsored 
  • Author
    Message

fully auto jobbie

Unread postAuthor: robbo@robbo » Tue Oct 02, 2007 4:39 am

hiya all i was thinking the other day and decided to build a fully auto cannon with 5 barrels that rotate, most of it i have worked out but i still have a few bugs, i am drawing up full build plans soon and ill take build pictures too, i was just wondering what kind of response i would get from this build ?
and any sugestions are welcome
by the way im only interested in combustion, i dont know why i just love them
  • 0

User avatar
robbo@robbo
Specialist
Specialist
 
Posts: 51
Joined: Tue Oct 10, 2006 4:42 am
Reputation: 0

Unread postAuthor: Hubb » Tue Oct 02, 2007 4:53 am

If you are able to get it to work, you will get a positive response. However, it is going to be very difficult to get it to work.

Good Luck
  • 0

User avatar
Hubb
Major General
Major General
 
Posts: 2390
Joined: Mon May 28, 2007 8:39 am
Location: South Georgia
Reputation: 2

Unread postAuthor: jackssmirkingrevenge » Tue Oct 02, 2007 5:47 am

making a 5 barrel cannon that has a chamber for each barrel and only shoots once wouldn't be *that* difficult a task to accomplish.
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: experament-u2 » Tue Oct 02, 2007 5:48 am

i have an idea
for ur ignition have a stun gun and have metal plates or screws on the outside of the combustion that moves past the terminals of the stun gun
hence ignition when it moves past

just an idea
  • 0

User avatar
experament-u2
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 469
Joined: Tue Dec 26, 2006 11:18 pm
Reputation: 0

Unread postAuthor: Hubb » Tue Oct 02, 2007 6:09 am

The Revolver X is a rotating combustion cannon. I don't see why it can't be modified to suit your needs. If you run into any problems, you may can check the site for suggestions.
  • 0

User avatar
Hubb
Major General
Major General
 
Posts: 2390
Joined: Mon May 28, 2007 8:39 am
Location: South Georgia
Reputation: 2

Unread postAuthor: robbo@robbo » Tue Oct 02, 2007 6:16 am

yes it roughly what i am going for but having each barrel fire more than once, so i'll have to auto reload, i am usein a stun gun idea to,
  • 0

User avatar
robbo@robbo
Specialist
Specialist
 
Posts: 51
Joined: Tue Oct 10, 2006 4:42 am
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Tue Oct 02, 2007 6:35 am

but having each barrel fire more than once


this means you're going to have to find a way to reload the projectile and refuel the chamber after venting it - as pointed out in the other thread - this is a very advanced project which only an experienced builder with access to the right tools and materials can hope to succeed in, I suggest you limit yourself to something simpler.
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Sponsored

Sponsor
 


Unread postAuthor: williamfeldmann » Tue Oct 02, 2007 8:36 am

Yeah, building a revolver is not hard. Building a combution revolver with a single ingnition source is not hard.

Building a cannon with any kind of auto loading system is difficult to say the least. Doing it with combustion would require some specialized fabrication skills, not to mention a chamber (or five) that can be fired, vented, filled, mixed, and fired again in rapid time, while the barrel (or five) are being autoloaded.

You might be biting off more than anyone wants to chew. If you are bound and determined to try an auto system start with a vortex. They will provide some challenge to your building skills but are still easily within grasp of completion.
  • 0

Trying to figure out how to make a SCUBA first stage regulator work for portable charging station. If only that pesky job thing didn't keep eating up all my time...

"Only two things are infinite, the universe and human stupidity, and I'm not sure about the former." - Albert Einstein
User avatar
williamfeldmann
2nd Lieutenant
2nd Lieutenant
 
Posts: 216
Joined: Sun Sep 09, 2007 6:55 pm
Location: Ames. Iowa, middle of BFE
Reputation: 0

Unread postAuthor: goose_man » Tue Oct 02, 2007 10:36 am

I think that it would be rather simple if you know how to use complicated electronics.. It would have a low ROF but you could use one barrel and chamber having electric valves and such to let propane and air in. A large electric ball valve, fan, and stungun are a must of course. It could run itself, if programmed properly (in fact, digital logic and timing circuits would do it).

Now picture the above, and assume it takes 10 seconds between shots. Therefore, if you have 5 barrels all started consecutively 2 seconds after each other, you would have a full auto combustion with a shot every 2 seconds.

You could even have it spin and have each of the five barrel/chamber positions be a different step:
1. Open ball valve and turn on fan.
2. Close ball valve.
3. Open propane valve for X seconds.
4. Turn on fan.
5. Turn on stun-gun.
Each chamber would be equiped with each part and would engage as a mechanical connection is made while the barrels rotate.

-goose_man
  • 0

User avatar
goose_man
Sergeant First Class
Sergeant First Class
 
Posts: 134
Joined: Sun Apr 08, 2007 6:37 am
Reputation: 0

Unread postAuthor: MrCrowley » Tue Oct 02, 2007 10:43 am

If you had five chambers, while one fires, another one needs to be filled with air, then the air needs to be released, which should vent it for a new shot, but it would have to happen super quick.
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: williamfeldmann » Tue Oct 02, 2007 11:16 am

Well, I would say goose is onto something. The timing circuits would make it much more possible but nowhere near fast. Not to mention the cost of the circuits and fans and whatnot, at least you could get by with a single stungun ignition. But his idea only helps the fueling side of the gun

My issue is still with the reloading aspect for a combustion. You could use some sort of breech loading system, but you need an easily loaded uniform projectile like a golfball or marble, etc. and the trouble is getting one round into the barrel and keeping it there. A normal gravity feed would either try to load too many or not load (or keep it loaded). A hopper is out of the question without major mods to the gunIf you try to add sliding bolt design you run into the trouble of a sliding bolt in a combustion with all the other dodads.
  • 0

Trying to figure out how to make a SCUBA first stage regulator work for portable charging station. If only that pesky job thing didn't keep eating up all my time...

"Only two things are infinite, the universe and human stupidity, and I'm not sure about the former." - Albert Einstein
User avatar
williamfeldmann
2nd Lieutenant
2nd Lieutenant
 
Posts: 216
Joined: Sun Sep 09, 2007 6:55 pm
Location: Ames. Iowa, middle of BFE
Reputation: 0

Unread postAuthor: MikeNice » Tue Oct 02, 2007 2:25 pm

@ robbo@robbo. I think if you were successful with this venture you will have one of the craziest guns anyone have even heard of. I too think goose man has the right idea but the electronics that are going to be needed run this thing are going to be pretty complicated. Getting everything to work at the right time, in the right order again and again automatically is going to be more than difficult. Unless the electronics and programming come easy to you. Good luck to you dude, I'm looking forward to seeing someone pull this off.
  • 0

Your face is going to freeze like that. http://iplaaz.freehostia.com/
User avatar
MikeNice
Staff Sergeant
Staff Sergeant
 
Posts: 115
Joined: Tue Nov 28, 2006 4:37 pm
Location: Queen Creek, AZ
Reputation: 0

Unread postAuthor: robbo@robbo » Tue Oct 02, 2007 2:41 pm

well the plans r startin 2nyt so ill keep every1 informed
  • 0

User avatar
robbo@robbo
Specialist
Specialist
 
Posts: 51
Joined: Tue Oct 10, 2006 4:42 am
Reputation: 0

Unread postAuthor: CannonCreator » Wed Oct 03, 2007 10:08 pm

well so far I have had the idea of the stun igntion with steel plates on the outer shell, i got that idea before it was posted, and the 5 rotating barrels. Very simple I could do it, If i wanted to.
  • 0

Spudding Is dangerous, I learned the hard way:
http://www.spudfiles.com/forums/my-eye- ... 15301.html

Guns. As They may Claim lives, they are lives. Our lives.

When Life gives you lemons, through them at somone.

Live, Breathe, Eat, Paintball
User avatar
CannonCreator
Captain
Captain
 
Posts: 314
Joined: Sun Aug 12, 2007 12:59 pm
Location: Moorpark, CA
Reputation: 0

Unread postAuthor: robbo@robbo » Thu Oct 04, 2007 1:48 am

lol just 2 let everyone know all the ideas are compiled and the plans half done, ill post them all 4 u to pull to pieces :P
  • 0

User avatar
robbo@robbo
Specialist
Specialist
 
Posts: 51
Joined: Tue Oct 10, 2006 4:42 am
Reputation: 0

Return to Combustion Cannon Discussion

Who is online

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

Reputation System ©'