Boom!  The classic potato gun harnesses the combustion of flammable vapor.  Show us your combustion spud gun and discuss fuels, ratios, safety, ignition systems, tools, and more.
			
		
		
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								PneuJose				                
							
 
	
        
						- Private 4

 			
		- Posts: 96
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								 Sat Jan 13, 2007 1:22 pm
			
			
			
			
			Hello fellas, ill show u my first combustion cannon, a mini 

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i like pneus but i cant use my loud compressor in the house so i decided to create a mini to shootqtips and spitballs
i was aware of the blowing cap problem so i decided to use a coke botlle nozle  and use it as a cap
 
            
							
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			-  just another pic
 		
		
		
		
		
			 
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			-  there is the spark(cant u see it?)
 		
		
		
		
		
			 
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			-  there u can see the gun
 		
		
		
		
		
			 
									
			
									
						
			
						 
		 
				
		
		 
	 
	        
			
		
		
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								Scope				                
							
 
	
        
						- Specialist 3

 			
		- Posts: 342
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																- Location: Ct
 
							    
    
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								 Sat Jan 13, 2007 1:49 pm
			
			
			
			
			well it sure is ghetto!!
nice use of materials tho
            
			
									
						
			
						 
		 
				
		
		 
	 
	        
			
	        
			
		
		
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								Flying_Salt				                
							
 
	
        
						- Corporal 3

 			
		- Posts: 779
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											- Location: Texas
 
							    
    
						
		
		
						
						
													
							
						
									 
								 Sat Jan 13, 2007 4:19 pm
			
			
			
			
			Minis are pretty quiet, so you don't really need a silencer. A longer barrel would send stuff farther though.
            
			
													
					Last edited by 
Flying_Salt on Wed Jan 17, 2007 12:58 pm, edited 1 time in total.
									
 
			
						
			
						 
		 
				
		
		 
	 
	        
			
		
		
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								Canuckicks				                
							
 
	
        
						- Private 2

 			
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								 Sat Jan 13, 2007 7:46 pm
			
			
			
			
			My minis sure arent quiet, the barrels are pretty long too, it seems to me that with different fuels i get quieter or louder shots, and Scope is right, that sure is a ghetto looking gun 

 
            
			
									
						
			
						 
		 
				
		
		 
	 
	        
			
	        
			
		
		
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								PneuJose				                
							
 
	
        
						- Private 4

 			
		- Posts: 96
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								 Wed Jan 17, 2007 12:38 pm
			
			
			
			
			well yeah , couldnt find black tape 

  but it realy works. i made a water bottle 
cannon, using a 1/2 tube for barrel that fits perfectly on water botlles
 
            
			
									
						
			
						 
		 
				
		
		 
	 
	        
			
		
		
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								Recruit				                
							
 
	
        
						- Specialist 4

 			
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								 Wed Jan 17, 2007 4:37 pm
			
			
			
			
			Canuckicks wrote:My minis sure arent quiet, the barrels are pretty long too, it seems to me that with different fuels i get quieter or louder shots, and Scope is right, that sure is a ghetto looking gun 

 
depends on C:B ratio the less force being used to push the round the louder the bang. So try making a long barrel or use a smaller chamber if it is to louder.