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3/4" cardboard sleeve missle

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
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Will it work?

yes
4
80%
no
1
20%
 
Total votes : 5
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3/4" cardboard sleeve missle

Unread postAuthor: FishBoy » Thu Jul 24, 2008 12:05 pm

hey, first off I wasn't sure what to call this, and I don't know if this is the right place for it.

Anyway, I had this carboard tube laying around my room and out of curiosity I decided to see if it would fit over the 3/4" pvc barrel for my pneumatic. It slid on perfectly, and fits just right. I took a 1" dowel piece that was originally an old experimental projectile (never used) and stuck that in the end as a nose cone; the fins are just cut carboard hot-glued on.

edit- also, has this been done before?

Pix-
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Attachments
missle1.jpg
the whole missle by itself
missle2.jpg
the nosecone
missle3.jpg
the bottom end
missle4.jpg
how it looks on my pneumatic
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Unread postAuthor: Sticky_Tape » Thu Jul 24, 2008 12:53 pm

I think the preasure will blow the tube apart before it even comes off of the 3/4'' pvc.
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Unread postAuthor: FishBoy » Thu Jul 24, 2008 1:01 pm

ya, i was thinking that. What pressure do you think it will take before shredding and what would be a good way to reinforce it?
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Unread postAuthor: blind909 » Thu Jul 24, 2008 1:04 pm

Sticky_Tape wrote:I think the preasure will blow the tube apart before it even comes off of the 3/4'' pvc.


No, it will not blow the tube apart. I have even used those tubes for barrels, and they didnt blow apart.
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Unread postAuthor: FishBoy » Thu Jul 24, 2008 1:11 pm

ok, but has this been done before?
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Unread postAuthor: hyldgaard » Thu Jul 24, 2008 1:35 pm

I have tried that with my ½" launcher at 35bar without the cardboard failing.. the results were not impressive in any way, just one of those things you have to try :D
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Unread postAuthor: FishBoy » Thu Jul 24, 2008 1:47 pm

well, if i have to... :D
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Unread postAuthor: jrrdw » Thu Jul 24, 2008 4:07 pm

Enamel paint tends to put a nice shell on cardboard tubes, you could also wrap it with tape. Do a search on PVC Rockets, you will learn a lot.

Edit: I voted yes, it will work. Experiment with the pressures, 10psi, 20psi so on.
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Unread postAuthor: clide » Thu Jul 24, 2008 6:21 pm

FishBoy wrote:ok, but has this been done before?


"this" being a projectile over the outside of the barrel? Yes, D_Hall made one that used one of these the toy rockets on a more conventional type gun.
http://www.amazon.com/William-Mark-Corp ... B00019RB7K

no-limit also made little air powered rocket launchers.
http://www.spudfiles.com/forums/viewtopic,p,173613.html
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Unread postAuthor: THUNDERLORD » Thu Jul 24, 2008 8:51 pm

<a href="http://www.papermart.com/templates/showimage.asp?PAGE=31010&IMG=../itemimg/jpg_tape/tape_gum_60.jpg">(Water activated) Gum Tape</a> Like pic, Is some nice stuff for making cardboard tubes.
Or cleaning up the electrical tape part (Use it instead)
Just put a layer lengthwise around a dowel or similar after applying water from a sponge.
Or wet it and glue it onto the cardboard tube.
I made a model rocket that way once. Pretty cool stuff. 8)
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Unread postAuthor: Mr.Sandman » Thu Jul 24, 2008 9:01 pm

yeah they are pretty powerful on combustions but ive never tried this on a pneumatic
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