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 74 users online :: 3 registered, 1 hidden and 70 guests


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

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

Miniature artillary

All non-spudgun related discussion goes here such as projects, theories, serious questions, etc. All "off-topic" posts (aka useless posting, determined by moderators) will be removed.
Sponsored 
  • Author
    Message

Miniature artillary

Unread postAuthor: mobile chernobyl » Wed Mar 30, 2011 12:52 pm

This may be the smallest cannon I've ever made!

Its a minature field cannon with a 1/2" bore. I'm not sure how much more i can elaborate on this here? so I'll post some pictures.

Image
Image

I've had the mechanical tubing for a while from a challenge DYI had for me but I never persued lol. I basically got bored this morning (9am) and by lunch time I had a cannon!

The barrel is 1.5" OD and .515" ID by 8.5" effective, so bearings should be a welcome mate for it.

To seal off the back, I first round a hardened 1/2" clevis pin. Cut it down to 1/2" long. Pounded it a few times to increase the OD to slightly larger than the bore. I pressed it into the bore then did a route and two extra passes by tig welding on the rear before welding on the ornamental ball to complete the cannon look.

The wheels turn and all for recoil action and its slightly rearward weighted.

Sometimes its just fun to make random stuff rather than always designing it! :D

No CAD, Calculators or Paper was harmed in this activity lol.
  • 0

User avatar
mobile chernobyl
Colonel
Colonel
 
Posts: 732
Joined: Sun Dec 03, 2006 11:53 am
Reputation: 9

Unread postAuthor: Crna Legija » Wed Mar 30, 2011 1:22 pm

Are you going to clean up the rust? it would look realy good. you cant talk about but it but post some dmg pics.

i need sleep its 5:21 am :shock:
  • 0

'' To alcohol... The cause of, and solution to, all of life's problems.”
--Homer Simpson

Add me on ps3: wannafuk, 8/11/11 cant wait
User avatar
Crna Legija
Major General
Major General
 
Posts: 2333
Joined: Sun Jul 20, 2008 5:14 am
Location: australia
Reputation: 0

Unread postAuthor: Davidvaini » Wed Mar 30, 2011 2:25 pm

-_- wrote:Are you going to clean up the rust? it would look realy good. you cant talk about but it but post some dmg pics.

i need sleep its 5:21 am :shock:


I like the rust, makes it look more authentic :D
  • 0

User avatar
Davidvaini
Major General
Major General
 
Posts: 1315
Joined: Tue May 29, 2007 8:58 pm
Reputation: 0

Unread postAuthor: mobile chernobyl » Wed Mar 30, 2011 2:51 pm

I agree with Davidvaini - The rust sort of makes it look authentic.

I'll post some picture of it in action. You guys know how it works so no need to get into that lol.
  • 0

User avatar
mobile chernobyl
Colonel
Colonel
 
Posts: 732
Joined: Sun Dec 03, 2006 11:53 am
Reputation: 9

Unread postAuthor: jackssmirkingrevenge » Wed Mar 30, 2011 3:03 pm

mobile chernobyl wrote:You guys know how it works so no need to get into that lol.


Of course, it's a heavy duty blowgun, like this :D

Nice job, ornamental and functional ;)
  • 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: mobile chernobyl » Wed Mar 30, 2011 3:25 pm

jackssmirkingrevenge wrote:Of course, it's a heavy duty blowgun, like this :D


lol - similar, the only difference is my lungs only produce deflagrating results.
  • 0

User avatar
mobile chernobyl
Colonel
Colonel
 
Posts: 732
Joined: Sun Dec 03, 2006 11:53 am
Reputation: 9

Unread postAuthor: MrCrowley » Wed Mar 30, 2011 3:41 pm

I trust you're blowing in to that small hole in the back to propel the projectile, it's definitely not a hole for a fuse :wink:
  • 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

Sponsored

Sponsor
 


Unread postAuthor: Zeus » Wed Mar 30, 2011 6:32 pm

Yes, quite a few of us have "magic" lungs, mine sometimes reach DDT.

Funny how in-situ nitration occurs in the alveoli.

If you have access to a lathe it could come up very nicely.

Also could you PM me regarding the amount of lung power you put into it? I have the materials for such a blowgun laying around.
  • 0

/sarcasm, /hyperbole
User avatar
Zeus
Major General
Major General
 
Posts: 1422
Joined: Tue Oct 27, 2009 7:34 pm
Location: 'Straya, C*nt
Reputation: 2

Unread postAuthor: SpudBlaster15 » Wed Mar 30, 2011 7:45 pm

Zeus wrote:Yes, quite a few of us have "magic" lungs, mine sometimes reach DDT.


Oh yeah, well my magic lungs always reach DDT, then activate a 'secondary' air supply which exhales far greater volumes at a much higher rate than the 'primary' lungs. :lol:

Magic lungs, you gotta love them.
  • 0

People should not be afraid of their governments. Governments should be afraid of their people.
User avatar
SpudBlaster15
Major General
Major General
 
Posts: 2385
Joined: Wed Oct 18, 2006 11:12 pm
Location: Canada
Country: Poland (pl)
Reputation: 3

Unread postAuthor: mobile chernobyl » Wed Mar 30, 2011 8:23 pm

You guys could make some money on a dark street corner with those lungs! :lol:

Supplies for tomorrows session

Image
Mods - delete if need be, I edited my photo somewhat but ultimately its your call!
  • 0

User avatar
mobile chernobyl
Colonel
Colonel
 
Posts: 732
Joined: Sun Dec 03, 2006 11:53 am
Reputation: 9

Unread postAuthor: mark.f » Wed Mar 30, 2011 8:28 pm

Neato. Our magic lungs contained too much New Year's Eve cigar smoke when this happened.

Play it safe, play it clean, play it smoke-free. :roll:

Neat job, MC (Hammer). Coincidentally, did you use a stick/MIG/TIG welder or gas? Been looking at getting a basic oxy/acetylene setup for welding low carbon steel implements...
  • 0

User avatar
mark.f
Donating Member
Donating Member
 
Posts: 3464
Joined: Sat May 06, 2006 11:18 am
Country: United States (us)
Reputation: 21

Unread postAuthor: mobile chernobyl » Wed Mar 30, 2011 8:40 pm

All welding was TIG. They all have their applications (stick/mig/tig) and I have all three as well as a oxy/ac set up and use all regularly when working on a project. The Tig unit is a Tig/Stick/Plasma unit and is very very convenient for a hobbyist like myself. It would not be great for a work environment but if you can find one I highly recommend it!

I do find myself typically tig welding everything. I have not needed to weld Stick at all yet - unless just for trying it. If there is anything where the volume of work is larger and repetitive I will use the mig machine on it.

I learned how to weld by first brazing and then gas welding using my oxy/ac setup - and with that I would recommend it to you if you are trying to learn how to weld. However I'm not sure I can recommend welding a pressure vessel as a newcomer. Not to sound pompous but pressure vessel welding is (neglecting underwater welding) one of the hardest things to learn and perfect - I'm not there yet but I've got a year of in-field experience from it and I still cringe at high pressures even though I've had my welds hydro-tested at close to 2000psi on sch10 without a leak!

::EDIT::

On a rather funny note, I was looking for videos of people firing other mini cannons and came across this one:
[youtube]http://www.youtube.com/watch?v=Wi4g_U0hoOg[/youtube]

Now it's pretty cool that he's got a mini cannon, it's even cool that he's shooting at targets, but IN HIS HOUSE? The blatant disregard for his own home made me laugh while watching this video, I mean seriously where are all the shots going? are they hitting a dense foam catch target? or shooting through to the neighbors apartment? lol

Watch the first one as well - he shoots everything within a foot of his computer! lol
  • 0

User avatar
mobile chernobyl
Colonel
Colonel
 
Posts: 732
Joined: Sun Dec 03, 2006 11:53 am
Reputation: 9

Unread postAuthor: mark.f » Wed Mar 30, 2011 8:58 pm

Nope, no pressure vessels (yet). I was mainly looking at something to weld up brackets and stands for my (soon to be) shop.

EDIT: oh god I lol'd. This guy is either careless or has some pretty sweet renter's insurance and an alibi. :lol:
  • 0

User avatar
mark.f
Donating Member
Donating Member
 
Posts: 3464
Joined: Sat May 06, 2006 11:18 am
Country: United States (us)
Reputation: 21

Unread postAuthor: Technician1002 » Wed Mar 30, 2011 9:34 pm

Guys I think you missed the point of the small hole in the back. I thought it was an advanced combustion launcher. The small hole is for the ignition.
  • 0

User avatar
Technician1002
Chief of Staff
Chief of Staff
 
Posts: 5190
Joined: Sat Apr 04, 2009 11:10 am
Reputation: 14

Unread postAuthor: mobile chernobyl » Wed Mar 30, 2011 9:41 pm

Yea you could say it's advanced combustion... it was advanced when the Chinese created it! :wink:
  • 0

User avatar
mobile chernobyl
Colonel
Colonel
 
Posts: 732
Joined: Sun Dec 03, 2006 11:53 am
Reputation: 9

Next

Return to Non-Spudgun Related Discussion

Who is online

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

Reputation System ©'