I am trying to build my first CNC machine. I am concerned with the noise of the router motor. I am considering using an air spindle. I believe this spindle must use some sort of air compressor. Does anyone know if the air spindle with air compressor is quiter than a router motor? Where can I find air spindles and what are the price ranges for them.

I want to avoid having to build an outdoor shed just for my 4' x 3' cnc.

Thanks,