Air cooling/SWARF removal

[Jonathan]

So Looking at either a 24 liter tank and low pressure

That's what I tried with my cheap 24L compressor from a car boot sale...with the minimum flow rate for it to be useful I still could not run it continuously. However if your part doesn't take too long (hard to say how long) to cut then that may not be a problem.

decreasing the amount of hard angles is a good thing with vacuum

Good thing with either really... most important is to use as big conduit/tube as you can.