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Mitcho's Musket (Whammy Gun MkII)

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Unread postAuthor: Willdebeers » Sun Oct 25, 2009 5:09 am

Why don't you saw off the chamber and replace it with a 90 degree elbow, then the chamber? It would be more ergonomic and easier to hold.
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Unread postAuthor: Mitchza89 » Sun Oct 25, 2009 5:53 am

Whoa this thread has been dead for a while :?

I just wanted to keep this gun as simple and streamline as possible. I loved this old coax. It's been down for ages and recycled so many times.
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Unread postAuthor: cannonmaster » Sun Nov 08, 2009 7:22 pm

nice gun i see that you put a lot of time and effort into it to get the part's and put it togeather! :D
If you were to rebuild it in a new gun what would you do differently because i see very little improvement in it if any at all again great job!!! :lol: :wink:
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Unread postAuthor: Mitchza89 » Mon Nov 09, 2009 10:28 pm

Thanks very much :) I think I will rebuild that gun. It was the best I've built.
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Unread postAuthor: sas380 » Sat Dec 19, 2009 7:51 pm

what,s the pressure rating of copper planning on building a double barrel shotgun thx in advance
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Unread postAuthor: absinthe » Sun Dec 20, 2009 8:38 am

sas380 wrote:what,s the pressure rating of copper planning on building a double barrel shotgun thx in advance


what grade of copper are you buying? what dia?

http://www.kembla.com.au/kembla-plumbing-tube
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Unread postAuthor: inonickname » Sun Dec 20, 2009 11:09 am

Google the copper tube handbook. It has useful information on different sizes and types of copper.

You haven't made it entirely clear what you plan to build, but depending on the size a fair mix hybrid or mid pressure pneumatic (several hundred psi) will work with a very acceptable safety margin. However, don't consider using proper firearms cartridges or shells in pipe like this.
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Unread postAuthor: Nwest82 » Tue Dec 22, 2009 8:31 am

I love the idea of removing the little Handle on the valve and installing a "trigger", looks like it would be mouch more accurate to fire and easier to hold during firing. How long is the Barrel? what size is the chamber? I take it alot has to do with the "polite valve" when it comes to performance? Cute dog BTW, what breed?.

Nathan
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Unread postAuthor: Mitchza89 » Tue Dec 22, 2009 8:33 pm

Hi mate,

Thanks very much for your interest. This type of pilot valve is by no means new. Quite a few of the Dutch spudders used this before such as Brain The Brain. The barrel is about 80cm long and the chamber is 1/2'' galvanized steel. How fast you can empty your pilot really can either make or break performance. This gun was always fantastic due to the size of the valve compared to the pilot area.

She's a marrema. They are a 2000 year old breed of dog from Italy. They are a guardian breed. They were bred to sleep with the flock to protect from bears, thieves and foxes as well as looking out for the Shepperd and his family.
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Unread postAuthor: bobsaget » Mon Dec 28, 2009 5:28 pm

Could you please send me a link on how to make a pump, i had a bicycle pump but broke it at 200 psi. I want to know how to make one out of copper pipe and have it be capable of higher pressures.
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Unread postAuthor: Brian the brain » Mon Dec 28, 2009 5:40 pm

link :
http://www.spudfiles.com/forums/viewtop ... tml#180053

And please..I invented this way of piloting... :wink:
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Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Unread postAuthor: Mitchza89 » Tue Dec 29, 2009 12:20 am

Sorry Brian, that was what I meant. I meant to say "used before me" instead of "used before" :D

How are your future builds coming a long mate?
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