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 :: 5 registered, 0 hidden and 66 guests


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

Registered users: Bing [Bot], Google [Bot], Majestic-12 [Bot], MSNbot Media, Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

Blowgun Question

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

Blowgun Question

Unread postAuthor: ben8763 » Mon Oct 01, 2007 3:15 am

I am new to the art of cannon making and i was looking at some simple cannons i could build

you now the cannons with a modded sprinkler solenoid and i thought why is the hose fitting inserted in the top of the blowgun trigger valve is there any particular reason for this or just consistency (I think I spelt that incorrectly).

Yeah so if anyone can answer that it would be great.

Regards

Ben
  • 0


ben8763
Private
Private
 
Posts: 3
Joined: Mon Oct 01, 2007 3:06 am
Reputation: 0

Unread postAuthor: Marco321 » Mon Oct 01, 2007 4:18 am

Hey
Its to exhaust the air above the diaphragm to activate the valve. There is a flash animation of it somewhere.....

EDIT: Welcome to the forums
  • 0

Failure to plan is planning to fail.

The 7 P's - Proper Prior Preparation Prevents Piss Poor Performance
User avatar
Marco321
Colonel
Colonel
 
Posts: 540
Joined: Tue May 15, 2007 2:56 am
Location: Sydney, Australia
Reputation: 0

Unread postAuthor: ben8763 » Mon Oct 01, 2007 6:20 pm

Ok i understand why the tapped fitting fits into the top of the solenoid but why does the other end of the hose (the one coming off the solenoid) always seem to go into the top of the blowgun valve
  • 0


ben8763
Private
Private
 
Posts: 3
Joined: Mon Oct 01, 2007 3:06 am
Reputation: 0

Unread postAuthor: super spuder » Mon Oct 01, 2007 6:30 pm

because some blow guns only work one way
  • 0

trying to decide on a new project, probably something small.
User avatar
super spuder
Colonel
Colonel
 
Posts: 558
Joined: Fri Apr 06, 2007 9:05 pm
Location: Ontario Canada
Reputation: 0

Unread postAuthor: MrCrowley » Mon Oct 01, 2007 6:30 pm

The blow gun is a valve, when the handle is pushed down, it opens up and lets out the 'pilot volume' from the sprinkler valve, which actuates the valve and fires the gun. The hose isn't necessary but a valve like a blow gun is.
  • 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: ammosmoke » Mon Oct 01, 2007 7:06 pm

LOL you guys, he's asking why the hose looks like its on the wrong side of the blowgun. On the nozzle side instead of the part where you would insert a pressure hose. Am I right?
  • 0

<img>http://www.speedtest.net/result/309559995.png</img>
User avatar
ammosmoke
Brigadier General
Brigadier General
 
Posts: 1011
Joined: Wed Sep 27, 2006 10:57 am
Reputation: 0

Unread postAuthor: ben8763 » Mon Oct 01, 2007 7:11 pm

right you are ammosmoke
  • 0


ben8763
Private
Private
 
Posts: 3
Joined: Mon Oct 01, 2007 3:06 am
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: super spuder » Mon Oct 01, 2007 8:28 pm

:x i have no idea, i wonder if its cause you still have to put presure through it from the bottom to fill up the pilot volume thingy, wow im tired and cant think
  • 0

trying to decide on a new project, probably something small.
User avatar
super spuder
Colonel
Colonel
 
Posts: 558
Joined: Fri Apr 06, 2007 9:05 pm
Location: Ontario Canada
Reputation: 0

Unread postAuthor: ammosmoke » Tue Oct 02, 2007 10:24 pm

I personally have no idea why you would do this instead of putting it at the normal end. The normal end seems like it would be easier to find parts for... At least it is for me.

EDIT: And I thought they didn't work that way too..... I've never put a blowgun on something backwards... anything...

EDITEDIT: Well, I just looked at a few, and maybe they just look upside down because the eye isn't used to looking at them that way..... IDK...
  • 0

<img>http://www.speedtest.net/result/309559995.png</img>
User avatar
ammosmoke
Brigadier General
Brigadier General
 
Posts: 1011
Joined: Wed Sep 27, 2006 10:57 am
Reputation: 0

Unread postAuthor: Lentamentalisk » Tue Oct 02, 2007 11:41 pm

by attaching them to the top (if it really is the top,) the hose doesnt have to wind around so much, though i highly doubt that it makes a difference in performance, unless the pilot volume has to be a specific size, as in on of my methods for shooting multiple shots.
  • 0

User avatar
Lentamentalisk
Brigadier General
Brigadier General
 
Posts: 1202
Joined: Tue Aug 07, 2007 5:27 pm
Location: Berkeley C.A.
Reputation: 0

Unread postAuthor: spudgunnerwryyyyy » Tue Oct 02, 2007 11:46 pm

It is pretty much because one person did it like that and most followed, or because that is the best way to hold the trigger (blowgun). maybe its because the hose adapters most people use are 1/4" hose to 1/8nominal and its easier to not use bushings. It doesn't really matter but blowguns do seal better from the 1/4 nominal input.
  • 0

The Doors are awesome, Led Zeppelin is amazing, and Motley Crue kicks @$$.
Go Orange Box

RAP SUCKS
User avatar
spudgunnerwryyyyy
1st Lieutenant
1st Lieutenant
 
Posts: 261
Joined: Thu Jul 12, 2007 10:54 pm
Reputation: 0

Unread postAuthor: DeuceX » Fri Oct 05, 2007 9:46 pm

Its because some blowguns dont seal if you pressurize opposite the traditional flow. From what I understand and have seen, output pressure can cause the internal pin to unseat therefore leak, and inturn accidentally firing your spud gun. Not all blowguns do this and if you find one that works backwards...go for it, but I will keep mine on the input side.
  • 0


DeuceX
Private
Private
 
Posts: 6
Joined: Wed Sep 26, 2007 11:34 pm
Reputation: 0

Return to Pneumatic Cannon Discussion

Who is online

Registered users: Bing [Bot], Google [Bot], Majestic-12 [Bot], MSNbot Media, Yahoo [Bot]

Reputation System ©'