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Crowley's First Co-ax - Update

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: MrCrowley » Fri Mar 07, 2008 11:21 pm

I meant 'damn' because I wont be able to used the car to go and get stuff for my hybrid and i'll have to wait another week before working on it.

Oh and I leave for Sydney Monday, and the concert is Tuesday. I come back Sunday. I've been to Sydney loads of times and don't need to spent 4 days pissing about there do nothing when I have a 6 day weekend at school :)

That's right, we get Thursday, Friday, Sat, Sun, Mon and Tuesday off school, though i'll be away for the first four days. :(
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Unread postAuthor: Novacastrian » Fri Mar 07, 2008 11:24 pm

MrCrowley wrote:I meant 'damn' because I wont be able to used the car to go and get stuff for my hybrid and i'll have to wait another week before working on it.

Oh and I leave for Sydney Monday, and the concert is Tuesday. I come back Sunday. I've been to Sydney loads of times and don't need to spent 4 days pissing about there do nothing when I have a 6 day weekend at school :)

That's right, we get Thursday, Friday, Sat, Sun, Mon and Tuesday off school, though i'll be away for the first four days. :(


Sh!te, don't mind me, i am doing a duelers- Nova Out....
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Re: Crowley's First Co-ax

Unread postAuthor: jackssmirkingrevenge » Sat Mar 08, 2008 1:46 am

MrCrowley wrote:And JSR before you go off about the Pilot Volume, there is next to none. The piston is housed in about 6cm of 20mm PVC that's sleeved in the metal chamber. The PVC extends back into the reducer, giving the piston about 7mm to travel. The rest of the pilot volume is taken up by some rubber which doubles as a bumper.


I have no complaints, nicely done :) now rack up that pressure ;)
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Unread postAuthor: psycix » Sat Mar 08, 2008 7:34 am

Nice coax crowley :)
It looks clean and most of all: very sturdy.
How much pressure do you expect it can handle?

Crank up the pressure as much as you can and impress us with some real results :D
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Unread postAuthor: MrCrowley » Sat Mar 08, 2008 2:27 pm

psycix wrote:Nice coax crowley :)
It looks clean and most of all: very sturdy.
How much pressure do you expect it can handle?

Crank up the pressure as much as you can and impress us with some real results :D

Thanks, not sure actually. Hopefully atleast 250psi. :)
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Unread postAuthor: MrCrowley » Sun Mar 30, 2008 11:55 pm

Update :shock: :D
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Unread postAuthor: SpudFarm » Mon Mar 31, 2008 10:09 am

damage
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Unread postAuthor: THUNDERLORD » Mon Mar 31, 2008 10:43 am

man that looks great. i was thinking you could put a brass 90 onto that gauge so it won't block your sights. also i was wondering where you get a handle like that? thanks
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Unread postAuthor: dewey-1 » Mon Mar 31, 2008 10:54 am

--
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Last edited by dewey-1 on Sun Apr 20, 2008 12:28 pm, edited 1 time in total.
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Unread postAuthor: scottcrete » Mon Mar 31, 2008 11:03 am

omg.. is that a oldass record player i spy? I havent seen one in a long while.. how long you had that? since it was new? how old are you Mr C?
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Unread postAuthor: Jared Haehnel » Mon Mar 31, 2008 11:04 am

Thats a nice gun Mr Crowley....nice work 8)
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Unread postAuthor: Brian the brain » Mon Mar 31, 2008 11:15 am

I have no complaints, nicely done now rack up that pressure



My thoughts exactly!
But that reverse blowgun might become a problem.Better use a ballvalve when you do.

Nice clean launcher.
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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: elitesniper » Mon Mar 31, 2008 11:33 am

Looks really nice now bump up the dam pressure :)
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Unread postAuthor: MrCrowley » Mon Mar 31, 2008 1:15 pm

Thanks for all the comments guys :)

And yeah, a high pressure pump is on it's way....

spudfarm wrote: damage

Haha yeah i'm waiting to get some batteries for my digital camera. I'll take a video too.

I got a relatively tight grouping at about 10m, so it's fairly accurate.

Also i'm only running it at just over 105psi until I make a high pressure pump, so that'll have to do for now.

scottcrete wrote:omg.. is that a oldass record player i spy? I havent seen one in a long while.. how long you had that? since it was new? how old are you Mr C?

Yeah, it's a 1979 National turntable.
I've had it for about a month
16 :)

You can see it in this thread:
http://www.spudfiles.com/forums/turntab ... 13377.html

I had problems with the pre-amp, but it's getting sorted out.

dewey-1 wrote:MrC; I really like the appearance of that coaxial.
How about a 2" barrel version now that you have coaxials down?

Thanks, but that would require me to go 3" or 4" chamber wise, which would set me back probably $500NZD

I pay about $30USD for a 4" pressure rated fitting here :(

THUNDERLORD wrote:man that looks great. i was thinking you could put a brass 90 onto that gauge so it won't block your sights. also i was wondering where you get a handle like that? thanks

I don't live in America, so I couldn't tell you where. The ones I see are usually blue.
If you can't find one, try a spray paint blow gun, they sell them separate sometimes.

I can't seem to find many 1/8" fittings in NZ, usually they're just adapters, i've never seen a 1/8" elbow. But if I do, i'll definitely move the gauge.

@BtB
Yeah it's rating is probably only 90psi, and I doubt it's more sturdy then the common blowgun, i'll just have to wait and see.

I think Chaos used one at 200psi+, I can't remember, it just rings a bell.


Edit:
Oh and since I have to depress the blowgun to let the chamber fill, I drilled a hole in the blowgun grip and made a horse shoe shaped bit of metal which slides into the hole and over the trigger to keep it depressed.

That's for when I get around to building a high pressure pump, I can just lock the trigger in place.
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Unread postAuthor: MrCrowley » Fri Apr 04, 2008 3:30 am

Update damage pics....

These shots were done at 90psi, from 5m's away. I used Jib-Board as a backstop because we have loads lying round and the bb's are easy too dig out. Above 90psi they just blow holes in the damn thing and I loose them :(

Image

I don't think it's too bad considering I have a 2" gauge in my face when aiming :lol:
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