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The Lowdown

A place to ask general spud cannon related questions.
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Unread postAuthor: Pilgrimman » Sun Mar 09, 2008 1:15 am

By the way, the screws that arc electricity in my combustion always get the residue from Aquanet ( best fuel comes from the old lady department at Wal-Mart ) and its hell to clean out from all the little things that stick out of the side of the screw. Will nails work jsut as well as screws? they seem like they would be alot easier to clean...


I wouldn't use nails. They aren't threaded, so they'd probably be more likely to fly out if the cannon was somehow over-pressurized. What I would do is screw in the screws, then take them out, and thread them in from inside the cannon so that the heads of the screws form the spark gap. Then, you can clip/grind/whatever the part of the screws outside the chamber, so you have the benefit of easy-to-clean spark gaps, with the added safety of threaded screws!

Or you could just use a clean burning fuel, such as propane... :D I've actually heard that starter fluid burns pretty clean, as well...
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Unread postAuthor: Gippeto » Sun Mar 09, 2008 1:20 am

Ah, yes... the old "flaming boulder" thing. The obsession of many a young man. :lol:

Oh-well, they are your friends, so do as you will. :)
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Unread postAuthor: viskaren » Sun Mar 09, 2008 1:21 am

Hmm how about i use nails and a roll of duct tape lol
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Unread postAuthor: Hubb » Sun Mar 09, 2008 1:24 am

viskaren wrote:Hmm how about i use nails and a roll of duct tape lol


That would actually work...and you'd get ghetto points. :wink:
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Unread postAuthor: viskaren » Sun Mar 09, 2008 1:27 am

god if my internet would stop being mentally deficient i would attach these paint files
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Unread postAuthor: viskaren » Sun Mar 09, 2008 1:31 am

im still a private? jeez...
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Unread postAuthor: MrCrowley » Sun Mar 09, 2008 1:31 am

I'm beginning to like this guy, wish all new comers were like you :)
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Unread postAuthor: viskaren » Sun Mar 09, 2008 1:33 am

Heh thank you im just on a mental roll

-Would a spring powered cartridge work? like....eh i might have to use ascii to illustrate this lol

Merged:

the internet needs less pop-ups and more potato cannon trajectory and ballistics models

Merged:

a spud-shaped wooden box affixed to the barrel of the gun with like 6 potatoes lined up with a spring that pushed one in after every shooting....hmmmm....brb get paper....
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Unread postAuthor: MrCrowley » Sun Mar 09, 2008 1:55 am

Hey,

I just merged your tripple post. Sorry but we don't allow double, or tripple, posting on Spudfiles. It just keeps the forum cleaner looking and easier to read for gathering info.

You also may want to look at the posting rules, the <A HREF="http://www.spudfiles.com/forums/viewtopic,p,136508.html#136508">Posting Etiquette</a>


Thanks. :)
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Unread postAuthor: starman » Sun Mar 09, 2008 2:01 am

viskaren wrote:By the way, the screws that arc electricity in my combustion always get the residue from Aquanet ( best fuel comes from the old lady department at Wal-Mart ) and its hell to clean out from all the little things that stick out of the side of the screw. Will nails work jsut as well as screws? they seem like they would be alot easier to clean...


Don't use nails and only use screws that are tapped through 2 layers of PVC, like where the coupler or cleanout overlap the PVC pipe.

Obviously you have run into the downfall of the "spray and pray" aquanet launcher...eventually you need to just rebuild the things, they get so gummed up. Design yourself an advanced propane model, take your time and build it right and it will last you a lifetime, typically with little or no cleanup or maintenance.

Edit: Sorry I basically echoed Pilgramman's response...
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Unread postAuthor: Hubb » Sun Mar 09, 2008 2:18 am

This link may help. It's Pete Zaria's how-to on an advanced combustion.

http://www.spudfiles.com/forums/complete-plans-for-advanced-combustion-t4512.html
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Unread postAuthor: viskaren » Sun Mar 09, 2008 10:55 am

Ok it wont be a problem to rebuild one cause they are so easy to make. Sorry about the triple post i skimmed the rules beforehand but obviously didnt see all of them so ill re-read the rules and check out the links you guys gave me. thanks.

Edit- Zaria's plans look simple enough, albeit somewhat expensive. The only thing still causing me trouble is the propane meter, can you link me an explanation for this or something?
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Unread postAuthor: Ragnarok » Sun Mar 09, 2008 11:19 am

viskaren wrote:the internet needs less pop-ups and more potato cannon trajectory and ballistics models

Well, actually... I'm working on one at the moment.

If I pull my finger out and knuckle down, the Beta version should be available in a few days.
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Does that thing kinda look like a big cat to you?
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Unread postAuthor: viskaren » Sun Mar 09, 2008 11:25 am

Awesome, though im usually not mathematically adequate enough to know what all of the measurements are on my cannon. :wink:
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Unread postAuthor: viskaren » Sun Mar 09, 2008 11:50 am

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We're just two lost souls, swimming in a fishbowl, year after year. Running over the same old ground, and what have we found, the same old fears, wish you were here.

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