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 44 users online :: 4 registered, 0 hidden and 40 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

Air gun finsihed!

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
Sponsored 
  • Author
    Message

Unread postAuthor: jackssmirkingrevenge » Fri Nov 14, 2008 4:53 pm

Ragnarok wrote:I give you Jack's politically incorrect sense of humour! ;)


Oh, this is me restraining myself :D I could easily have said "...if it boarded a double decker bus wearing a rucksack"...
  • 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: john bunsenburner » Fri Nov 14, 2008 5:08 pm

I assumed u people would be serious, but i my self love joking so its ok. Ill borrow my moms 2000$ digital camara, i guess that will do... I am really proud of this gun, but i still need to install my bolt action... Its also an ugly gun cause i always alternate my colors, copper, alli, copper alli...


P.S. I think i have found my self a new hobbie, it involves lead and fire and things i do not need!

Oh and thank you for all your replies
  • 0

User avatar
john bunsenburner
Major General
Major General
 
Posts: 1446
Joined: Sun Oct 19, 2008 5:13 am
Reputation: 0

Unread postAuthor: Ragnarok » Fri Nov 14, 2008 5:24 pm

jackssmirkingrevenge wrote:I could easily have said "...if it boarded a double decker bus wearing a rucksack"...

I have done that many times, and I can assure you, I have never exploded in the process. Although, given it's me, I probably would have managed to survive it anyway. :roll:

You know, that would a good user name if you need a new one: jackspoliticallyincorrectsenseofhumour
Bit of an unwieldy acronym though. :P

@John bunsenburner: If you wanted serious, you joined the wrong forum!

And you will find spudgunning addictive. It's rule 84c of the internet, or so I'm told.
  • 0

Does that thing kinda look like a big cat to you?
User avatar
Ragnarok
Chief of Staff
Chief of Staff
 
Posts: 5339
Joined: Tue Dec 19, 2006 8:23 am
Location: The UK
Reputation: 8

Unread postAuthor: john bunsenburner » Sat Nov 15, 2008 2:23 am

Well I guess I prefer this to my high school prinipal(he is an ***), so I am fine. Just woke up, I will write 2 or 3 essays before I get to my gun again.

P.S. I heard people make shot gun shot by pouring molten lead into a coolent, i have found it makes nice little shapes round on one end pointy at another...Do you Spud gunneres think it works as ammo? I am guessing it would be like a little tiny lead darts(they are maybe 1-2cm long)...
  • 0

User avatar
john bunsenburner
Major General
Major General
 
Posts: 1446
Joined: Sun Oct 19, 2008 5:13 am
Reputation: 0

Unread postAuthor: Gippeto » Sat Nov 15, 2008 10:20 am

You are referring to "drop shot". Done "properly", it is very nearly perfectly spherical.

Drop shot is made using a "shot tower", see the link below.

http://en.wikipedia.org/wiki/Shot_tower
  • 0

User avatar
Gippeto
Donating Member
Donating Member
 
Posts: 2393
Joined: Sat Jan 19, 2008 10:14 am
Location: The Great White North...Canada eh!
Reputation: 11

Unread postAuthor: john bunsenburner » Sat Nov 15, 2008 10:21 am

Well will i work in an air gun?
  • 0

User avatar
john bunsenburner
Major General
Major General
 
Posts: 1446
Joined: Sun Oct 19, 2008 5:13 am
Reputation: 0

Unread postAuthor: Gippeto » Sat Nov 15, 2008 10:29 am

Drop shot should work, meaning it WILL leave the muzzle, but it will not be stable, and individual trajectories would be a guessing game.

If you are planning a scatter gun, then you have no problem. :D

For reasonably accurate shooting with single projectiles, you need to look elsewhere for ammo.(Unless you happen to have a REALLY tall shot tower. :wink: )
  • 0

User avatar
Gippeto
Donating Member
Donating Member
 
Posts: 2393
Joined: Sat Jan 19, 2008 10:14 am
Location: The Great White North...Canada eh!
Reputation: 11

Sponsored

Sponsor
 


Unread postAuthor: john bunsenburner » Sat Nov 15, 2008 10:49 am

OK one last question: I have three valves at home

1.ball valve, with spring operation
2.The valve i mentioned at the beginning
3. A nice little cheep blow gun for dusting things

Which one should i choose? in terms of opening time, accuracy, looks ect. I could of coarse build a socond gun, i have eanoth spare parts, so please give me like an order of best to worst(1.best)
  • 0

User avatar
john bunsenburner
Major General
Major General
 
Posts: 1446
Joined: Sun Oct 19, 2008 5:13 am
Reputation: 0

Unread postAuthor: Gippeto » Sat Nov 15, 2008 11:05 am

Why not use the hammer valve? (That would be #2)

My .02

Ball valve:

Slow opening time no matter what you do.(a matter of opinion)
Spring operation is nearly as complex as the hammer valve.

Hammer valve:

The best option you presented.
The most complex option you presented.

Blow gun:

These have two purposes in the "spudding world", as the main valve in a bbmg, and to pilot a real valve. :)

It's your gun, you decide.

But ask yourself, "How dedicated am I to the project?", before you start.

The answer will guide you to the right decision.
  • 0

User avatar
Gippeto
Donating Member
Donating Member
 
Posts: 2393
Joined: Sat Jan 19, 2008 10:14 am
Location: The Great White North...Canada eh!
Reputation: 11

Unread postAuthor: john bunsenburner » Sat Nov 15, 2008 11:12 am

What exactly is a hammer valve? it is the only valve i am not sure about...
  • 0

User avatar
john bunsenburner
Major General
Major General
 
Posts: 1446
Joined: Sun Oct 19, 2008 5:13 am
Reputation: 0

Unread postAuthor: Gippeto » Sat Nov 15, 2008 11:16 am

This is a hammer valve.

http://www.instructables.com/id/Airgun- ... ase-Valve/

This link has now been posted in THIS thread three (that's 3!) times.

In the picture below, you can see a hammer valve and the related parts.
  • 0

Attachments
2240%20222.jpg
Last edited by Gippeto on Sat Nov 15, 2008 11:28 am, edited 1 time in total.
User avatar
Gippeto
Donating Member
Donating Member
 
Posts: 2393
Joined: Sat Jan 19, 2008 10:14 am
Location: The Great White North...Canada eh!
Reputation: 11

Unread postAuthor: john bunsenburner » Sat Nov 15, 2008 11:23 am

Ohh THATS a hammer valve! i have one oops...Ok so that is going on my rifle, funny how easy that was! I even have it lieing around some where so thats not a problem. How should i seal of my barrel( hammer valve is 4mm barrel 8..)i could fill it up with lead at one end(2-4cm), let it cool, drill a hole and then solder it together, any other ideas?
  • 0

Last edited by john bunsenburner on Sat Nov 15, 2008 11:34 am, edited 1 time in total.
User avatar
john bunsenburner
Major General
Major General
 
Posts: 1446
Joined: Sun Oct 19, 2008 5:13 am
Reputation: 0

Unread postAuthor: Gippeto » Sat Nov 15, 2008 11:33 am

The one in the link would function more like that in an Airforce Stealth.

See the pictures below.
  • 0

Attachments
airforce stealth valve drawing.gif
Hammer, breech and barrel layout
airforce stealth valve drawing.gif (4.24 KiB) Viewed 1381 times
stealth%20valve%20400.jpg
The actual valve.
User avatar
Gippeto
Donating Member
Donating Member
 
Posts: 2393
Joined: Sat Jan 19, 2008 10:14 am
Location: The Great White North...Canada eh!
Reputation: 11

Unread postAuthor: john bunsenburner » Sat Nov 15, 2008 11:36 am

OK i am off to build!
  • 0

User avatar
john bunsenburner
Major General
Major General
 
Posts: 1446
Joined: Sun Oct 19, 2008 5:13 am
Reputation: 0

Previous

Return to Pneumatic Cannon Discussion

Who is online

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

Reputation System ©'