High Pressure - Low Volume Chamber?

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
User avatar
Ragnarok
Captain
Captain
Posts: 5401
Joined: Tue Dec 19, 2006 8:23 am
Location: The UK

BeaverRat wrote:I'm not pulling any legs, I'm just as surprised as you guys. I ordered 1 of these valves a week ago, and it came yesterday. Strangely, another 10 came today crammed into one tiny box!
Er, I think you're going about this the wrong way, and frankly, I'm surprised no-one else has commented.

I'm sure we'd all like free stuff to turn up on our doorstep, but what I'd be doing is finding out what exactly has happened, not planning what I want to do with them. If they've charged you for them or something similar, then I'd want to fix that - and you can't do that if you can't send them back "as new".

And, even if it did seem to be "a free lunch", I'd tell the company anyway - I like to think of myself as honest, and while I might leave a "pocket change" mistake be, this is a matter of a couple of hundred dollars.

If you don't want to be quite that honest, at a bare minimum, I'd leave them aside for a few weeks to be quite sure the company doesn't ask for them back.
I'm not sure quite what the law around this kind of thing is, let alone in other countries, but unless you can be more than 110% certain they count as your property, I wouldn't risk doing anything where you could be forced to pay for them.
Does that thing kinda look like a big cat to you?
User avatar
BeaverRat
Specialist
Specialist
Posts: 161
Joined: Wed May 05, 2010 9:15 pm

You know what, I agree with that statement... Thanks for the advise

EDIT: I did a bit of research, and apparently it is 100% legal to keep and have ownership of whatever you recieve in the mail that is addressed to you.

http://www.attorneygeneral.gov/consumers.aspx?id=283
User avatar
Technician1002
Captain
Captain
Posts: 5189
Joined: Sat Apr 04, 2009 11:10 am

What is Legal and What is Ethical may be different. I always contact the company.

I had to RMA a hard drive under warranty. They sent a replacement and a week later they sent a replacement. I notified them and they sent me a pre paid return label. I sent the extra back unopened.

Sometimes a company will tell you to keep the item. I can sleep at night knowing the status.

It is legal in many places to have sex between consenting adults. It does not mean Adultery is ethical just because it is not illegal. This ethics issue was a problem for President Clinton. His moral fiber was questioned, not the legality of the act.

Sorry for the hijack of the thread for an ethics rant. I think you should contact the company and ask for what to do with them. They may let you keep them.
User avatar
BeaverRat
Specialist
Specialist
Posts: 161
Joined: Wed May 05, 2010 9:15 pm

I already have contacted the company, I am waiting to hear back...
Thanks guys
User avatar
Fnord
First Sergeant 2
First Sergeant 2
Posts: 2239
Joined: Tue Feb 13, 2007 9:20 pm
Location: Pripyat
Been thanked: 1 time
Contact:

Now that the legal stuff has been taken care of...

Golfball gun:
I don't think you'll be able to easily plumb these things together without doing some custom work. Even then I don't think it'll be possible to disassemble quickly when maintainance time comes.

Your best bet would be to use one big chamber(2" steel or a tank of some sort) and drill 4 holes in the side(s). Then either thread them and add 3/4 pipe nips, or braze the pipe in (or do both).

Then the output side... I have no idea. Personally, I'd attach the valves to the chamber, take out the rubber diaphragms, put some short lengths of 3/4" pipe on the barrel port, and braze the barrel on just as the chamber was done(Not a full-length barrel, just a short piece of 1.5" sch40)

The valves can be re-assembled when they cool down. You could either have all 4 valves on one side, or 2 on both.
Image
User avatar
Lockednloaded
Staff Sergeant
Staff Sergeant
United States of America
Posts: 1566
Joined: Thu Sep 03, 2009 9:38 pm
Location: Texas, USA
Been thanked: 7 times

PVC distributors that could be used to plumb in the barrel, but you're on your own for the chamber and pilot, I can't think of anything that wouldn't cost way more than a 6 QEVed launcher would be worth
I love lamp
Post Reply

Create an account or sign in to join the discussion

You need to be a member in order to post a reply

Create an account

Not a member? register to join our community
Members can start their own topics & subscribe to topics
It’s free and only takes a minute

Register

Sign in

  • Similar Topics
    Replies
    Views
    Last post