Im going to cnc alluminum plastic and fiberglass. I was wondering if any one knows a good dust collector that is silent, small and strong enough to get the fiberglass and alluminum out of the way of the drill bit. I know it needs at least a hepa filter for the fiberglass.
Hard to tell what scale you are working on but I highly recommend a cyclone sepererator on your vac system. It will keep you at %100 suction, keep your HEPA filter clean & keeep dust out of the air. If you are working with something the size of a shop-vac, check out http://www.clearvuecyclones.com/
Their Mini CV-06 is awesome on a shop vac, I run one on my blast cabinet, it gets all the ultrafine (flour) broken down abrasive.