Originally Posted by
Rich Harman
I nominate the above for the worst advice ever. :-)
I do agree that a good exhaust system can reduce the chance of fire, as will a good air assist. I would even suggest that the air assist is more important in that regard. But having good fire extinguishers ready at hand is certainly not less important. I have three next to my machine. A halon, AFFF and dry-chem.
Aslo, no exhaust system will create a vacuum - not even close. Not even close to close. Not even anywhere approaching what can be considered in any way close. At best, a very strong exhaust will drop the pressure inside the machine by a very small amount.