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my revamped my old getto cannon

Built a combustion 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 revamped my old getto cannon

Unread postAuthor: chrissilvermancs » Fri Mar 13, 2009 5:53 pm

i added a tazer and a computer fan pluss i added a meter thats attached to the cannon the bushing at the end is epoxied


[youtube]http://www.youtube.com/watch?v=174hABdh9Yw[/youtube]


[youtube]http://www.youtube.com/watch?v=8c49GhMviQM[/youtube]


[youtube]http://www.youtube.com/watch?v=UumzmQioENs[/youtube]
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Attachments
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the whole thing
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the spark using a tazer
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the fan switch
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the tazer with a home made button
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the front where the barrel screws in notice i used epoxy to hold the piece on
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the business end of a fax machine roller that i sharpened
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the whole roller
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how it fits snug in the barrel
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all my barrels or pipes
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the fan
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this was my original one
th_CopyofIMGP0039.jpg (6.75 KiB) Viewed 2050 times
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Unread postAuthor: chrissilvermancs » Sat Mar 14, 2009 12:07 am

the third video is just a joke of a really bad fail i will shoot some better stuff soon need to get some fittings from the hardware store.
any comments questions or concerns !?!?!
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Unread postAuthor: chrissilvermancs » Fri Mar 20, 2009 10:04 pm

dont be afriade to posst any coments questions concerns
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Unread postAuthor: starman » Sat Mar 21, 2009 2:07 am

My only real concern at this point...Chris, I have to be frank, this cannon is very poorly presented. The photos are small thumbnail size and your write-up is completely missing in action. You do get some points for showing some shooting video, but even those don't really move your cannon forward much in the overall picture.

You haven't given us much to discuss here. Replace the above thumbnails with larger versions of your photos and write up a description and specs of the cannon.
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Unread postAuthor: jook13 » Sat Mar 21, 2009 2:37 am

Starman: sometimes you remind me of Simon from American Idol. :wink: :P

Its fun adding little improvements to a simple spray and pray eh? I remember doing the same thing to my first spud gun. I was so proud of the fact that I got a cpu fan in there, hooked up to a switch and everything. I bet it is much more fun to shoot now! But I gotta agree, these tiny pictures are the pits.
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Unread postAuthor: starman » Sat Mar 21, 2009 2:58 am

jook13 wrote:Starman: sometimes you remind me of Simon from American Idol. :wink: :P


Why thank you...I think... 8) I don't really follow the show much nowdays but I do identify more with Simon's opinions than the others...but not always mind you.

I followed it a couple of years ago when one of the guys I had done some recording for, Chris Sligh, the curly haired, overweight fellow, made it to number 10 before being eliminated. Anyway, overall the show is all hype and mostly a huge waste of time...IMO.
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Unread postAuthor: inonickname » Sat Mar 21, 2009 4:00 am

Without the details or larger pictures it's hard to put a comment on it.

However, a fan and a meter are always good upgrades! Perhaps you should consider a ballvalve on the chamber rather than a cleanout cap for quicker venting of the chamber. Then if you want to go further there's camlocks...painting it- whatever you want to do.

Until we get some pictures (better) I'll leave my comment at good work. Lets see the pictures

:)
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Unread postAuthor: chrissilvermancs » Sun Mar 22, 2009 5:50 pm

sorry about the pics i have always had truble posting pics because my camera takes 1.5 mb pics and i have to reduse the size to get it on the sight but theres not much to say about it yes it was an old spray and pray i have a pice of 8 inch and 6 inch pipe and idk how to make a gun out of it because
http://www.spudfiles.com/forums/chamber ... 17736.html

i think cam locks are over kill but they do there job great i would get them if i could find them bigger and cheaper

also i have seen alot of people put spu fans and spark strips isnt that redundant. with a tazer on a spark strip thers no need for a cpu fan and vise verse right?
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Unread postAuthor: jook13 » Sun Mar 22, 2009 6:09 pm

The fan helps mix the fuel and air, making the shots more consistant.. It also is a great help with venting out the cannon after each shot.
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Unread postAuthor: starman » Sun Mar 22, 2009 8:51 pm

chrissilvermancs wrote:also i have seen alot of people put spu fans and spark strips isnt that redundant. with a tazer on a spark strip thers no need for a cpu fan and vise verse right?


Yeah, what jook said. Both add a measure of performance in their own way. Go for a couple of gaps centrally located in the chamber and roughly 3-4" from each end of the chamber. Don't locate them close to each other...won't make any difference then.
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Last edited by starman on Sun Mar 22, 2009 10:25 pm, edited 1 time in total.
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Unread postAuthor: Moonbogg » Sun Mar 22, 2009 9:38 pm

The cannon looks fun. My first and foremost concern is you should stand farther back or be shielded when shooting that wicked friggin nail thing. Accidents really do happen to people like us and they cause blood to spill.
Besides that, congrats on upgrading your cannon, thats totally awesome.
Like others have said, go for the 2 gap solution, it adds a bit of bang to the shot for sure. I'll tell you, I made my first cannon with 1 spark gap and no fan, and I thought something was wrong. I was disappointed with the power. Then the guys here said "add 3 spark gaps and a fan silly!" So I did and I was truly shocked at the increase in power.
Have fun dude...oh, grab a laser pen and use it as a laser sight! Why not? It lets you aim at stuff when it get dark outside.
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Unread postAuthor: chrissilvermancs » Mon Mar 23, 2009 8:56 pm

OK but wouldn't that cause serious damage to the fan i know people do it and all i just want some one to explain why the fan is not damaged if placed in front of the spark points.

also shooting this thing at night gets me in big trouble. (one day spudgunnerwryyyyy came over with his all of his stuff and we were testing burst disks and barrel sizes for the loudest sound! many complaints considering it was like 12:00 but still fun-also tinfoil with a small hole and a 2" barrel give a good noise).

also if people could look at the link i need help on how to make a cap and reducer for this monstrous piece of pipe(i say pipe rather than PVC because its to thick to be PVC but its 8inch diameter) i have seen the basket ball cannon and i dont think i first could find a tire that could fit airtight and or trust it.
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Unread postAuthor: starman » Mon Mar 23, 2009 10:13 pm

chrissilvermancs wrote:OK but wouldn't that cause serious damage to the fan i know people do it and all i just want some one to explain why the fan is not damaged if placed in front of the spark points.


The fan survives just fine. The pressure build up around the fan is equal on all sides so the net is no damage. The heat spike is also extremely short.

Re. the 8 inch stuff....it's only available at commercial pipe suppliers and is fairly expensive. You can also order reducer bushings, etc. from McMaster. Are you really sure you want to go down the 8" chamber trail?

And...your shooting your noise cannon at midnight....and you're surprised you're getting complaints?.... :roll:
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Unread postAuthor: jook13 » Mon Mar 23, 2009 10:36 pm

If you are going with 8 inch pieces, prepare to bend over and take it like a prisnors first night. My cannon that used 6 inch fittings nearly broke the bank. I remember paying 26 bucks for one elbow and 14 bucks for a coupler. Thank god I didnt have to buy a tee. As you go up in size, the price goes up exponentially.

example:
http://www.pvcfittingsdirect.com/_e/90_ ... ule_40.htm

84 bucks for one elbow, the 12 inch elbow was 700 something bucks. Rediculous.
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Unread postAuthor: chrissilvermancs » Sat Mar 28, 2009 3:00 am

well the guy who did the basket ball cannon had this metal hunk on the end and the person who did the kickball motor had what looked to be a tire i cant tell from the picture though just need to think of something that could fit a 8 inch hole i was wondering about the bottom of a plastic bucket but i dont know if it could take the heat
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