Re: Fully 3D printed John Deere 1/10 scratch build
			 
			 
			
		
		
		
			
			Regarding the 30mm or 50mm fan for the smoke unit.  If it were me I'd go with a 50mm radial blower, like the kind used by 3D printers for filament cooling fans, instead of a 50mm axial fan.  The radial blower will handle the higher back pressure you have in this system and the difference in airflow will be amazing. 
 
Don
		 
		
		
		
		
		
		
		
		
	
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