I got my CNC up and running a few months back and found that I am getting more business than I expected and having trouble keeping up with the demand. I have decided that I could now justify swapping my spindle out with an ATC spindle to make it more productive. I ordered most everything that I needed last night. One item that I need to still get is an air compressor. Working out of my garage so space is tight, not to mention money after this order. Whats the minimum sized air compressor that I would need to operate the ATC? Don't really need it to do much of anything else other than blowing off the table. Looking for tank size that would require the motor to constantly run to keep up like the pancake one I have now.