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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								wyz2285				                
							
 
	
        
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								 Mon Oct 24, 2011 1:47 pm
			
			
			
			
			I feel the same way
LOL looks like I´m not alone 
 
look around suddenly it´s full of selection fire, solenoid...
it´s like everybody it´s in the era of advanced electronic and I´m still in pneumatic age  

 
            
			
									
						
			CpTn_lAw wrote:

 "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " 
   
 
						 
		 
				
		
		 
	 
	        
			
		
		
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								Ocheeboy11				                
							 
	
        
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								 Mon Oct 24, 2011 3:35 pm
			
			
			
			
			Hmm, seeing as I can't find a solenoid, I'm gonna machine a simple clamp to attach an actuator to the slide valve. I'll be back in a couple of days with a prelim cad. Can anyone run a ggdt to find the fps reached bya 150 g Shot with a 350psi, 1ft long, 1 in wide chamber, with a qev
            
			
									
						
			
						 
		 
				
		
		 
	 
	        
			
		
		
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								wyz2285				                
							
 
	
        
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								 Mon Oct 24, 2011 3:42 pm
			
			
			
			
			what´s the size of qev? and barrel btw
            
			
									
						
			CpTn_lAw wrote:

 "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " 
   
 
						 
		 
				
		
		 
	 
	        
			
	        
			
		
		
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								wyz2285				                
							
 
	
        
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								 Tue Oct 25, 2011 2:00 am
			
			
			
			
			The chamber for me is enough for high pressure. How long is the barrel?
            
			
									
						
			CpTn_lAw wrote:

 "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " 
   
 
						 
		 
				
		
		 
	 
	        
			
	        
			
	        
			
		
		
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								Ocheeboy11				                
							 
	
        
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								 Tue Oct 25, 2011 7:52 pm
			
			
			
			
			I'll maximize based on size, might have a 2.5 and a 3.5. Depending on what I need, I can thread the barrel and receiver.
            
			
									
						
			
						 
		 
				
		
		 
	 
	        
			
	        
			
		
		
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								Gun Freak				                
							
 
	
        
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								wyz2285				                
							
 
	
        
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								 Wed Oct 26, 2011 8:37 am
			
			
			
			
			I did the GGDT with a 2.5 ft barrel, the muzzel velocity is around 100 fps (I don´t know much about your valve so...) muzzel energy around 75 ft*lb.
No erros so I would say the design is ok, even through I would use a light projectile for more fps and find the sweet spot of max power (I did a the same calculation with a 100g projectile, muzzel velocity 145 fps, muzzel energy 78 ft*lb).
            
			
									
						
			
						 
		 
				
		
		 
	 
	        
			
	        
			
		
		
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								wyz2285				                
							
 
	
        
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								 Wed Oct 26, 2011 3:23 pm
			
			
			
			
			I can see it´s a gun, but I didn´t get how it works 
 
is there a semi auto function with at console?