So, I bought a 1/6hp airbrush compressor capable of 40l/min (it says) to do air assist. The improvement in cutting is quite amazing - 3mm MDF was 10mm/s @ 65% power, with air I can do 15mm/sec @ 40%.
There’s a downside. After an hour I burnt my fingers on the compressor. I guess it wouldn’t last long if I wanted to run for 6
hours a day.
What does anyone else use/suggest that might last better?