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 73 users online :: 3 registered, 0 hidden and 70 guests


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

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

The Team
Administrators
Global Moderators
global_moderators.png CS

air pump update 9.1.08 700psi + picture

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

air pump update 9.1.08 700psi + picture

Unread postAuthor: far_cry » Tue Aug 26, 2008 6:45 pm

this is my home made air pump
updated
this a picture of my new gauge at 700 psi

Image
  • 0

Attachments
piston.jpg
ok in those 2 pictures you can see the piston
the strange thing i don't use any O ring because i don't find one to fit so i cut from track wheel tube a circle a little bit bigger from diameter of the cylinder and drill it in the center
the piston inside the cylinder.jpg
ok in those 2 pictures you can see the piston
the strange thing i don't use any O ring because i don't find one to fit so i cut from track wheel tube a circle a little bit bigger from diameter of the cylinder and drill it in the center
check valve.jpg
this is the check valve . ok lits say a 3/4in water check valve
pump.jpg
this is the pump
tube.jpg
this is a cooking gas tube that cant handle pressure
Last edited by far_cry on Sat Dec 13, 2008 8:11 am, edited 7 times in total.
User avatar
far_cry
Donating Member
Donating Member
 
Posts: 317
Joined: Wed Aug 20, 2008 3:59 pm
Reputation: 0

Unread postAuthor: LikimysCrotchus5 » Tue Aug 26, 2008 7:16 pm

Does it work?
(Message to short)
  • 0

4SPC, My 4" piston 3" porting cannon
Memo:
Fix up copper cannon
Fix up 4SPC
Start Stirrup pump
Start Toolies piston bazooka
User avatar
LikimysCrotchus5
Brigadier General
Brigadier General
 
Posts: 1100
Joined: Tue Sep 04, 2007 10:16 pm
Reputation: 0

Unread postAuthor: far_cry » Tue Aug 26, 2008 7:19 pm

absolutely 100%
  • 0

User avatar
far_cry
Donating Member
Donating Member
 
Posts: 317
Joined: Wed Aug 20, 2008 3:59 pm
Reputation: 0

Unread postAuthor: LikimysCrotchus5 » Tue Aug 26, 2008 7:48 pm

Good now how about some specs?
  • 0

4SPC, My 4" piston 3" porting cannon
Memo:
Fix up copper cannon
Fix up 4SPC
Start Stirrup pump
Start Toolies piston bazooka
User avatar
LikimysCrotchus5
Brigadier General
Brigadier General
 
Posts: 1100
Joined: Tue Sep 04, 2007 10:16 pm
Reputation: 0

Unread postAuthor: Gippeto » Wed Aug 27, 2008 1:46 pm

I think it is great that you have shown initiative and creativity building your own pump. :)


But;

I am sorry to tell you this. :(

I have serious problems with using plastic as the pump cylinder.

Using your pump generates heat from friction and also from compressing the air.

Heat WILL soften the plastic, possibly causing it to blow out.

You could and likely will be injured if that happens. :cry:

I must in good conscience recommend that you stop using your pump.

If you continue to use it, that is your choice.
  • 0

"It could be that the purpose of your life is to serve as a warning to others" – unknown

Liberalism is a mental disorder, reality is it's cure.
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: POLAND_SPUD » Wed Aug 27, 2008 2:43 pm

ohhh I have not noticed that it's pvc... I suppose he can use a copper pipe instead
  • 0

Children are the future

unless we stop them now
User avatar
POLAND_SPUD
Chief of Staff
Chief of Staff
 
Posts: 5405
Joined: Sat Oct 13, 2007 4:43 pm
Country: Israel (il)
Reputation: 10

Unread postAuthor: Sticky_Tape » Wed Aug 27, 2008 2:48 pm

It will be difficult to find a copper pipe with the same i/d for use with his plunger.
  • 0

You can tell how awesome a cannon is by the pressure used.
http://www.spudfiles.com/forums/high-pr ... 12803.html
xnt rnm ne z ahtbg
User avatar
Sticky_Tape
Brigadier General
Brigadier General
 
Posts: 1175
Joined: Thu Jan 31, 2008 6:35 pm
Location: Sydney, Nova Scotia, Canada.
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: far_cry » Wed Aug 27, 2008 4:42 pm

thank you gippeto for youre concern
i know that is a risk to use pvs pipe is a cylinder...
but what i can do there is no stores that can i buy a copper pipes and stuff like the boys here can
i seen a member here from israel that he have the same problem no material to buy
  • 0

Last edited by far_cry on Tue Sep 02, 2008 6:42 pm, edited 1 time in total.
User avatar
far_cry
Donating Member
Donating Member
 
Posts: 317
Joined: Wed Aug 20, 2008 3:59 pm
Reputation: 0

Unread postAuthor: Sticky_Tape » Wed Aug 27, 2008 4:57 pm

thank you gippeto for youre concern
i know that is a risk to use pvs pipe is a cylinder...
but what i can do there is no stores that can i buy a copper pipes and stuff like the boys here can

Sorry but ? can you clear that up?
Never mind I get it the boys on this site correct?
  • 0

You can tell how awesome a cannon is by the pressure used.
http://www.spudfiles.com/forums/high-pr ... 12803.html
xnt rnm ne z ahtbg
User avatar
Sticky_Tape
Brigadier General
Brigadier General
 
Posts: 1175
Joined: Thu Jan 31, 2008 6:35 pm
Location: Sydney, Nova Scotia, Canada.
Reputation: 0

Unread postAuthor: ALIHISGREAT » Wed Aug 27, 2008 6:39 pm

if i were you i wouldn't use that pump again, because the PVC looks very old (sunlight causes it to deteriorate as does the cold) and when PVC bursts, it shatters into shrapnel, so a PVC pump isn;t such a good idea :wink:
  • 0

<a href="http://www.bungie.net/stats/halo3/default.aspx?player=ALI H IS GREAT"><img src="http://www.bungie.net/card/halo3/ALI H IS GREAT.ashx"></a>
Image
User avatar
ALIHISGREAT
Major General
Major General
 
Posts: 1779
Joined: Sat Aug 25, 2007 6:47 pm
Location: UK
Reputation: 0

Unread postAuthor: Gippeto » Wed Aug 27, 2008 6:49 pm

I realize that material availability is a concern for many outside of North America.

A very good alternative would be seamless tubing in either steel, stainless steal, or aluminum.

Are these kinds of materials simply unavailable, or are they strictly controlled in Israel?

Do they have welding and machine shops in Israel? (Check near a Kibbutz, they would need to repair farm machinery.)They should be able to procure such materials.
  • 0

"It could be that the purpose of your life is to serve as a warning to others" – unknown

Liberalism is a mental disorder, reality is it's cure.
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: sniper hero » Wed Aug 27, 2008 6:58 pm

too dangerous
but a nice practise in building a pump :P
I can't build one without proper materials :wink:
  • 0

proud member of dutch spud clan
coming: semi auto pellet sniper:D
User avatar
sniper hero
Captain
Captain
 
Posts: 332
Joined: Fri Mar 07, 2008 3:12 pm
Reputation: 0

Unread postAuthor: POLAND_SPUD » Thu Aug 28, 2008 5:45 am

are you palestinian or isreali ?

I know it's not the most political correct thing to write but I imagine what would the IDF do if they see a palestinian carrying something that looks like a 'homemade launcher' :wink:


I am sure that you can buy copper and malleable iron pipes and fittings in isreal - It's not a 3rd world country... you just have to look for them
  • 0

Children are the future

unless we stop them now
User avatar
POLAND_SPUD
Chief of Staff
Chief of Staff
 
Posts: 5405
Joined: Sat Oct 13, 2007 4:43 pm
Country: Israel (il)
Reputation: 10

Unread postAuthor: far_cry » Thu Aug 28, 2008 7:32 am

well
i am guy from israel that belong to arab 48 (that mean we live inside the green line) israeli arabs israeli identity
sniper hero thank you :P

and Sticky_Tape i mean with the boys, The members in this site

ALIHISGREAT you absolutely right this is an old pipe thanks for your concern

gippeto we have all thate materials almost , and i can buy a lathe, small one about 2000$ but you know too many questions in this country
specialy me it is not good
but in the background i can buy almost all that stuff if i find the stores(that far away 30 miles ), and here the prices is expensive.
thanks all
  • 0

User avatar
far_cry
Donating Member
Donating Member
 
Posts: 317
Joined: Wed Aug 20, 2008 3:59 pm
Reputation: 0

Unread postAuthor: far_cry » Mon Sep 01, 2008 4:53 pm

o what the brr :o :o :o :o :o :o :o :o :o :o
  • 0

ImageImage
User avatar
far_cry
Donating Member
Donating Member
 
Posts: 317
Joined: Wed Aug 20, 2008 3:59 pm
Reputation: 0

Next

Return to Pneumatic Cannon Discussion

Who is online

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

Reputation System ©'