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 40 users online :: 5 registered, 0 hidden and 35 guests


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

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

The Team
Administrators
Global Moderators
global_moderators.png CS

Semi-automatic

Discuss miniature cannons built from things such as pill bottles and pen caps.
Sponsored 
  • Author
    Message

Semi-automatic

Unread postAuthor: Tom » Wed Oct 31, 2007 3:27 pm

I'm having a problem, I made a nerf gun for fun. As propulsion it uses combustion, the problem now is that it takes a longe time to reload. Because you need to vent the chamber and spray new fuel in, dus somewhone now how to fix this problem?
GR.Tom
  • 0

Really really proud member of the Dutch Spud Clan!

Tom
Sergeant Major
Sergeant Major
 
Posts: 187
Joined: Fri Aug 24, 2007 8:22 am
Reputation: 0

Unread postAuthor: f.c » Wed Oct 31, 2007 4:05 pm

propane injection and a chamber fan might fix the problem.
  • 0

User avatar
f.c
Captain
Captain
 
Posts: 340
Joined: Sun Jul 08, 2007 2:40 am
Reputation: 0

Unread postAuthor: st.croixsurfer » Wed Oct 31, 2007 4:28 pm

maybe a ball valve would work to vent and spray fast?
  • 0


st.croixsurfer
Specialist
Specialist
 
Posts: 42
Joined: Thu Sep 27, 2007 4:48 pm
Reputation: 0

Unread postAuthor: TwitchTheAussie » Wed Oct 31, 2007 6:51 pm

Look up Revolver X. Dont knock it right off just take inspiration from it.
  • 0

Raise your horns if you love metal.
spudgunning is like sex, once you've tasted, you can't wait til next time.
-
CpTn_lAw
User avatar
TwitchTheAussie
Brigadier General
Brigadier General
 
Posts: 980
Joined: Tue Feb 06, 2007 3:23 am
Reputation: 0

Unread postAuthor: Tom » Thu Nov 01, 2007 2:18 am

I thoucht that if I charge up a tank to 80psi with the fuel mixture, and use a valve from a lighter. If I inject the fuel mixture with a nozzle will that the remove the need to vent the chamber?
  • 0

Really really proud member of the Dutch Spud Clan!

Tom
Sergeant Major
Sergeant Major
 
Posts: 187
Joined: Fri Aug 24, 2007 8:22 am
Reputation: 0

Unread postAuthor: pyrogeek » Thu Nov 01, 2007 2:25 am

It will be off. On the first shot it will have a bunch of fresh air, and after that it will have a bunch of O2 depleted, warm air.
Go pneumatic. That's the only way to do semi-auto effectively. Unless you want to rig up a couple solenoids to O2 tanks and a fuel tank, along with an ignitor and a way to control it all.
  • 0

I'm weird, I know it, you don't need to tell me.

pyrogeek
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 457
Joined: Sat May 13, 2006 7:43 pm
Location: moline Illinios
Reputation: 0

Unread postAuthor: Novacastrian » Thu Nov 01, 2007 2:36 am

pyrogeek wrote:It will be off. On the first shot it will have a bunch of fresh air, and after that it will have a bunch of O2 depleted, warm air.
Go pneumatic. That's the only way to do semi-auto effectively. Unless you want to rig up a couple solenoids to O2 tanks and a fuel tank, along with an ignitor and a way to control it all.


Right on the money :wink:
  • 0

America, the greatest gangster of all time. With 200 million odd foot soldiers at it's whim and call.
When you fill your car with refined oil remember that it has been paid for with blood and guts, some from your own countrymen, most not.

Novacastrian
Major General
Major General
 
Posts: 1604
Joined: Sat Aug 11, 2007 6:59 pm
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: Tom » Thu Nov 01, 2007 8:53 am

Well than change the name from semi0automatic to fast refueling mini. I come up the idea to make a backpack with two tanks, one with air the other with the fuel mixture. Both operated by the valve from a lighter!
  • 0

Really really proud member of the Dutch Spud Clan!

Tom
Sergeant Major
Sergeant Major
 
Posts: 187
Joined: Fri Aug 24, 2007 8:22 am
Reputation: 0

Return to Miniature Cannon Discussion

Who is online

Registered users: Bing [Bot], Exabot [Bot], Google [Bot], Google Adsense [Bot], Yahoo [Bot]

Reputation System ©'