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 :: 3 registered, 0 hidden and 68 guests


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

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

The Team
Administrators
Global Moderators
global_moderators.png CS

tennis ball launchin

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

tennis ball launchin

Unread postAuthor: thisnobody » Thu Apr 02, 2009 2:42 pm

is the tennis ball supposed to be realy tight in a 2.5" sch 40 pvc?
this seems real tight unsure if correct or not
if its right how far down should it be?
should i use something to push it far down in there?
tanx for the help
  • 0


thisnobody
Private
Private
 
Posts: 10
Joined: Tue Mar 24, 2009 3:31 pm
Reputation: 0

Unread postAuthor: jmeyer1022 » Thu Apr 02, 2009 2:48 pm

Your post hurt to read, but it fits more than snug inside 2.5" sch 40 pvc. Use a stick or a piece of 1 1/2 pipe to ram it down to the end of the barrel. It should go down with some ease.
  • 0


jmeyer1022
2nd Lieutenant
2nd Lieutenant
 
Posts: 200
Joined: Sun Nov 09, 2008 4:50 pm
Reputation: 0

Unread postAuthor: starman » Thu Apr 02, 2009 2:53 pm

Yeah they are tight especially brand new balls. After you have burnt the fuzz off of a new one (yeah from a pneumatic as well, from friction) they will fit a little better.

Push it as far down the barrel as you can without inferring with the valve or piston, or entering the chamber. A breach loading tennis ball barrel makes this a lot easier.
  • 0

User avatar
starman
Donating Moderator
Donating Moderator
 
Posts: 3041
Joined: Wed Dec 12, 2007 12:45 am
Location: Simpsonville, SC
Reputation: 0

Unread postAuthor: thisnobody » Thu Apr 02, 2009 3:31 pm

thanks for the information
  • 0


thisnobody
Private
Private
 
Posts: 10
Joined: Tue Mar 24, 2009 3:31 pm
Reputation: 0

Unread postAuthor: psycix » Thu Apr 02, 2009 3:33 pm

Whatever you do, first load the ammo and then pressurize the gun.
If they are so tight they block of the air, it will help to turn open your pilot valve so the air can escape through that.
Ram it down as far as possible; but without interfering with the valve, ofcourse.
Most people use a broom or something like that to push the ammo down. But to easy loading, you can build a breech loading system, so that you can load the ammo from the back.

jmeyer1022 wrote:Your post hurt to read, but it fits more than snug inside 2.5" sch 40 pvc. .
Your post hurts to read. :P
  • 0

Till the day I'm dieing, I'll keep them spuddies flying, 'cause I can!

Spudfiles steam group, join!
User avatar
psycix
Donating Member
Donating Member
 
Posts: 3684
Joined: Mon Jun 25, 2007 7:12 am
Location: The Netherlands
Reputation: 0

Unread postAuthor: thisnobody » Thu Apr 02, 2009 3:42 pm

thanks
that makes sense to load then pressurize
i definetly want the air to have an alternative exit (other than explode)
  • 0


thisnobody
Private
Private
 
Posts: 10
Joined: Tue Mar 24, 2009 3:31 pm
Reputation: 0

Unread postAuthor: jrrdw » Thu Apr 02, 2009 3:47 pm

Next time you post in the wrong section just send one of us moderators a message via PM service and we will move it for you instead of making 2 topics.

Be sure and do a write up on your finished cannon in the "Showcase Section" with pics and specs so we can eeew and ahhh over it, (damage pics to).

Welcome to Spudfiles.
  • 0

When life gives you lemons...throw them back they suck!
User avatar
jrrdw
Donating Moderator
Donating Moderator
 
Posts: 6540
Joined: Wed Nov 16, 2005 5:11 pm
Location: Maryland
Country: United States (us)
Reputation: 25

Sponsored

Sponsor
 


Return to Pneumatic Cannon Discussion

Who is online

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

Reputation System ©'