Show us your pneumatic spud gun!  Discuss pneumatic (compressed gas) powered potato guns and related accessories.  Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
			
		
		
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								jackssmirkingrevenge				                
							
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								 Sat Jan 02, 2010 2:37 am
			
			
			
			
			Insomniac wrote:Indeed, some would even go so far as to say that it is required.
As in this case, for the 1" barrel the equivalent length of 3" chamber has 
9 times the volume, so in this case chamber to barrel ratio is a massive 4.5:1, talk about overkill 

			hectmarr wrote:You have to make many weapons, because this field is long and short life
 
		 
				
		
		 
	 
	        
			
		
		
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								Davidvaini				                
							
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								 Sat Jan 02, 2010 2:49 am
			
			
			
			
			 
Taking colors from the picture, I found these to be the most common...
The picture of course being judge dredd.
			
						 
		 
				
		
		 
	 
	        
			
		
		
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								Insomniac				                
							
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								 Sat Jan 02, 2010 3:05 am
			
			
			
			
			jackssmirkingrevenge wrote:Insomniac wrote:Indeed, some would even go so far as to say that it is required.
As in this case, for the 1" barrel the equivalent length of 3" chamber has 
9 times the volume, so in this case chamber to barrel ratio is a massive 4.5:1, talk about overkill 

 
Yes, but the chamber still has the same volume as the chamber.  

			I wonder how much deeper the ocean would be without sponges.
Right now I'm having amnesia and deja vu at the same time. I think I've forgotten this before.
Add me on msn!!! insomniac-55@hotmail.com 
		 
				
		
		 
	 
	        
			
		
		
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								jackssmirkingrevenge				                
							
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								 Sat Jan 02, 2010 3:10 am
			
			
			
			
			Insomniac wrote:Yes, but the chamber still has the same volume as the chamber.  

 
*blink*
Duly edited *sigh*  
 
  
			hectmarr wrote:You have to make many weapons, because this field is long and short life
 
		 
				
		
		 
	 
	        
			
		
		
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																			 tonnor
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								 Sat Jan 02, 2010 3:09 pm
			
			
			
			
			Thanks for the help.But still have questions.Is two feet long enuf to launch a tennis ball.Is twice the volume of the barrel enuf or to much.I seen a launcher for tennis balls to raise antennas and he is using 16 ''barrel at 2.5'' and 8'' comb at 4''.He claims 100 to 150 feet.Would a longer barrel longer comb chamber make a difference.I am looking at geardogs post from 11/13/2009 and this is about the idea i had or mine.Does it work well and how long of a barrel and comb chamber did you use.thanks again
            
			
									
						
			
						 
		 
				
		
		 
	 
	        
			
		
		
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								velocity3x				                
							
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								 Sat Jan 02, 2010 4:56 pm
			
			
			
			
			Insomniac wrote:jackssmirkingrevenge wrote:Insomniac wrote:
Yes, but the chamber still has the same volume as the chamber.  

 
 
 
That make sense to me but.... I live on the west side of the equator where everything makes sense.
			
						 
		 
				
		
		 
	 
	        
			
		
		
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								Ragnarok				                
							
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								 Sat Jan 02, 2010 5:04 pm
			
			
			
			
			velocity3x wrote:That make sense to me but.... I live on the west side of the equator where everything makes sense.
Including the phrase "West of the equator", apparently.
			Does that thing kinda look like a big cat to you?
						 
		 
				
		
		 
	 
	        
			
		
		
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								ramses				                
							
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								 Sat Jan 02, 2010 5:37 pm
			
			
			
			
			Ragnarok wrote:velocity3x wrote:That make sense to me but.... I live on the west side of the equator where everything makes sense.
Including the phrase "West of the equator", apparently.
 
pwnd!!!
Anyway, about your the longer barrel and or chamber, a longer barrel is almost always more powerful, as is a larger chamber. Eventually, you run into diminishing returns, especially in terms of range. At the extreme end, you will get a few feet extra range from a few more feet of barrel.
I recommend 
GGDT.
			POLAND_SPUD wrote:even if there was no link I'd know it's a bot because of female name  

 
 
		 
				
		
		 
	 
	        
			
		
		
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								jackssmirkingrevenge				                
							
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								 Sat Jan 02, 2010 7:35 pm
			
			
			
			
			Ragnarok wrote:velocity3x wrote:That make sense to me but.... I live on the west side of the equator where everything makes sense.
Including the phrase "West of the equator", apparently.
 
Genuinely pwnd! 

			hectmarr wrote:You have to make many weapons, because this field is long and short life
 
		 
				
		
		 
	 
	        
			
		
		
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								velocity3x				                
							
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								 Sat Jan 02, 2010 10:29 pm
			
			
			
			
			Ragnarok wrote:Including the phrase "West of the equator", apparently.
ramses .....pwnd!!! 
jackssmirkingrevenge..... Genuinely pwnd!  
As I've been a Civil Engineer for 39 years, I assure you that I'm quite aware of the magnetic bearing of the equator but, this is the first time ANYONE has EVER taken my "west" statement seriously. I didn't think it was possible until now, however... I do thank you for stepping up to enlighten me.....lol  
 
   
  
			
						 
		 
				
		
		 
	 
	        
			
		
		
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								jackssmirkingrevenge				                
							
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								 Sun Jan 03, 2010 1:14 am
			
			
			
			
			velocity3x wrote:this is the first time ANYONE has EVER taken my "west" statement seriously.
Trust spudfiles to provide a loving home to the sort of pedants who 
would notice 

 I love this site 

			hectmarr wrote:You have to make many weapons, because this field is long and short life
 
		 
				
		
		 
	 
	        
			
	        
			
		
		
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								Ragnarok				                
							
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								 Sun Jan 03, 2010 4:07 pm
			
			
			
			
			velocity3x wrote:this is the first time ANYONE has EVER taken my "west" statement seriously.
If you were counting on no-one taking it seriously on the basis that it sounded too ridiculous for anyone to actually say seriously - I should tell you that I've heard people say 
far stupider things and mean them.
			Does that thing kinda look like a big cat to you?
						 
		 
				
		
		 
	 
	        
			
		
		
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																			 tonnor
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								 Sun Jan 03, 2010 7:39 pm
			
			
			
			
			Me again back from lowes and the local hardware store.They do not sell 4 inch pressure rated pvc only foam core which i believe wont work.Is this correct?I figure i need about 16 inches for my air chamber.Anyone have any ideas?I bought the largest pressure rated pvc which is 1.5 inch.Now with a 24 inch 2.5 barell i will have to run three lengths to make up for no 4 inch.I think this will look dumb.Can anyone enlighten me on how else to do this .Thanks again.