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My first over-under cannon.

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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My first over-under cannon.

Unread postAuthor: rna_duelers » Fri Jun 30, 2006 5:33 am

This is my first over-under style gun which all of the parts i got for it were free!except the sprinkler valve. I got all the parts from one of the workers at a reece plumbing store which i befriended and they where doing stock take so he gave me a few piece of pipe and fittings which they didnt want to bother about having to stock take on.I got 2.3meters of class 12 50mm pipe and alot fo fittings and all the 50mm fittings for free.FREE!!!
Its pritty simple and shoots carrots out of sight,which is pritty cool and i also plan on getting a 50mm barrel aswell i still have alot of the 50mm pipe left over from the chamber so all i need is reducers.
Tell me what you think and anything i could add to it.Thanks for your time.
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Attachments
picet3.JPG
This is my fill in point.Its a female compressor connection which i use with a ball valve to fill it.
picet2.JPG
This is the guts of the cannon.
picet1.JPG
The whole cannon and i am going to make a suport from the chamber to the barrel.
picet1.JPG (8.88 KiB) Viewed 1690 times
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Unread postAuthor: )DEMON( » Fri Jun 30, 2006 8:09 am

Dude! what is up with you and carrots?Sweet cannon but it really needs a paint job.What is that paper stuff on the sprinkler valve?
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Unread postAuthor: frogy » Fri Jun 30, 2006 11:56 am

MM's!!! AHHHHHH

When carrots take over the world :oops:

Nice gun, but why do you need a ball valve to fill the female disconnect, just pull out the male when it's done filling.

I'm going to put a ball valve and a male quick disconnect on one of my guns...
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Unread postAuthor: rna_duelers » Sat Jul 01, 2006 7:09 pm

The reason have a ball valve is because on my air compressor i use 2 female conections and i have 2 male connections with a 1/4 ball valve in the middle so i can choose when i want to fill it not just connect and fill.
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Unread postAuthor: sam_516 » Wed Jul 19, 2006 2:52 am

ImageImage

this is some damage pics from this gun

ImageImage

and this is the crazy johno holding the gun of CARROT DOOM!!!
i shall answer demons question on wat is it with john and carrots and that is that carrots are just so simple to cut up and shove down the barrel when grape season is not on + they leave a cool orange mark where you shot (that is unless if it went through wat you were shooting then yeah you never see any part of that carrot again, this is a personal message from me to everyone out there flowers penatrate the skin even with weak guns so do not ever shoot your friends with flowers caz it will make them bleed isn't that right john... :evil:

ohh yeah and grapes make you look like you have a dirty ring worm when you get shot by them so dont shoot your friends with them either caz it does hurt alot, not just a little but A LOT...once again isn't that right john... :evil:

ok lets just say don't point your gun at anyone caz that is bad and if the gun missfires then you can expect to be punched in the hea by the person who was in the line of fire...isn't that right ADAM!!! roofing screws hurt the most.
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Unread postAuthor: killagorrila99 » Thu Aug 24, 2006 1:01 am

cool. not the best looking cannon on the market but still. how far it shoot?
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Unread postAuthor: rna_duelers » Thu Aug 24, 2006 1:06 am

Well i shot a large marble from my house to a beer brewry that is about one and a half city blocks away so i guess...400 meters or more.

EDIT:And isnt payback sweet when u shoot em back lol.Only imagineing shooting some one but that is stupid if u do isnt that right sam shooting people or anything living isn't cool.
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Unread postAuthor: MrCrowley » Fri Aug 25, 2006 11:19 pm

hey you live in Aussie right? so where do you get your sprinkler/solenoid valves?
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Unread postAuthor: sam_516 » Sat Aug 26, 2006 1:22 am

we get our solenoid valves from bunnings wearhouse
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Unread postAuthor: MrCrowley » Sat Aug 26, 2006 1:32 am

bunnings eh hmmm how much?we got bunnings in NZ but im not sure if they stock them.pitty mitre10 dont coz my dad owns a mitre10 store
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Unread postAuthor: sam_516 » Sat Aug 26, 2006 1:36 am

bunnings sells them from 16-30 dollars, but make sure you get one with "OUT" a guide rod because then they are so much easeyer to modd. the guide rod is a black turning thing and it controls the flow rate so dont get one of thos
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Unread postAuthor: MrCrowley » Sat Aug 26, 2006 2:42 am

yeah i know the whole "guide rod" thing.the only sprinkler valve ive ever seen is on trademe buts its $35 incl shipping so i might pop down to bunnings.whats the best brand/model for the price like is the $16models any better then the $30 models?
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Unread postAuthor: rna_duelers » Sat Aug 26, 2006 9:24 pm

In Bunnings i have only ever seen valves with guide rods they all come standard with it even the ones with out the flow control so what you do is mod the valve the usual way you would and take out the guide rod then fill the hole were the guid rod was wiht epoxy then wait till it is dried and heat a a needle in a flame till its red then poke a small hole through the epoxy,this acts and the equalisation hole thats how i have modded my valves with guide rods and the valve i got from Bunnings was $16 but i think they went up in price now they are about $20.
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Unread postAuthor: MrCrowley » Sat Aug 26, 2006 9:34 pm

how big does the eq hole need to be?
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Unread postAuthor: SpudStuff » Sat Aug 26, 2006 9:46 pm

As small as possible
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