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Golf Ball 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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Golf Ball Cannon

Unread postAuthor: PCGUY » Sat Feb 05, 2005 6:20 pm

<div align="center">GOLF BALL CANNON

Provided By Mr.Plow - <a href="http://www.geocities.com/boomstick989">http://www.geocities.com/boomstick989</a></div>
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Last edited by PCGUY on Wed Apr 19, 2006 7:43 pm, edited 1 time in total.
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Unread postAuthor: theexp » Sun Feb 06, 2005 4:49 pm

Nice clean cannon. How far does it shoot golf balls :?:

Seems like it would be very destructive :evil: :twisted: :twisted: :roll:
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Unread postAuthor: deathtodeer666 » Mon Sep 12, 2005 12:40 am

man I bet that kicks like a mule
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Unread postAuthor: CS » Mon Sep 12, 2005 7:11 pm

A little maybe but not that much because golf balls arent that heavy. Here is pimpmann22's third law of spudgun physics "Heavy ammo= Lots of kick, Light ammo= Little kick"
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Unread postAuthor: boilingleadbath » Mon Sep 12, 2005 7:19 pm

In fact, recoil should go pretty much as:
sqr(M<sub>projectile</sub>)
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Unread postAuthor: drac » Mon Sep 12, 2005 8:35 pm

English blb, english. Not many people hear know the terms from the engineer's lexicon. :P
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Unread postAuthor: boilingleadbath » Tue Sep 13, 2005 2:26 pm

When did "sqr" [square root] become a term relinquished to engineers!? Heck, excell uses it. Or are you refering to the subscript of the "M" (mass)? I didn't really think M for mass, or subscripts where that exotic...

For those that don't know what a square root is (although I might recomend to wait a few years before you build a spudgun) this basicaly means that if one where to quadruple the projectile mass, the recoil would double.

My reasoning (which ignores the propelent gas, so it's not the most accurate) goes like this:
The energy given to the projectile is always the same. (pretty close, with a good valve and common masses)
Solving E<sub>nergy</sub> = 1/2M<sub>ass</sub>V<sub>velocity</sub><sup>2</sup> for V gives V = sqr(1/2ME) ... and because 1/2 & E are constant, we can ignore them for the rest of the reasoning.
The momentum of an object: P<sub>(momentum)</sub> = MV.
Thus; P = M*sqr(M)
... oops, it seems I messed up on my mental algebra the first time through; the table should be like this:
<table align="left" border="1" cellpadding="5" cellspacing="5">
<tr><td>mass</td><td>recoil</td></tr>
<tr><td> .25</td><td>.125</td></tr>
<tr><td>1</td><td>1</td></tr>
<tr><td>2</td><td>1.68...</td></tr>
<tr><td>4</td><td>8</td></tr>
</table>
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Unread postAuthor: drac » Tue Sep 13, 2005 6:14 pm

Ahhh, thats the physicist's lexicon. My bad. :oops:

Your explanation clears things up a lot. Thanks. :D
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Unread postAuthor: saladtossser » Tue Sep 13, 2005 6:24 pm

blb, work on the table!!!!
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Unread postAuthor: rna_duelers » Sun Oct 02, 2005 6:04 am

yer thats basic, heavy ammo=big kick...water= blown out of hand cannon and big arse bruse on knee cap....lol was lots of fun but i would not recomend it to anyone..u get hurt :oops: by the way it is a nice clean gun :wink:
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Unread postAuthor: PCGUY » Sun Oct 02, 2005 1:35 pm

Wow BLB your table seriouselly screwed up the forums, however I fixed it for you 8) .
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Unread postAuthor: bubblebathman » Mon Oct 03, 2005 12:25 pm

that looks like that would hurt if ur arm was in the way of that kick OWWWWW :lol:
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Unread postAuthor: finchmeisterflex » Thu Oct 06, 2005 12:27 pm

I was wondering what kind of material the solenoid valve was made from.
If it is metal please can someone tell me where to find one that could be bought on a small budget?
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Unread postAuthor: spudshot » Thu Oct 06, 2005 4:56 pm

its just a normal plastic sprinkler valve, just a different brand than the green orbits you normally see
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Unread postAuthor: Obctg » Sun Nov 27, 2005 9:14 pm

is the recoil measured in newtons, or is it just a ratio
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