Click image for larger version.  Name: WP_20140220_001.jpg  Views: 1699  Size: 435.3 KB  ID: 12049 I have built a Cyclone type system for my workshop, the fan is from Machine mart and the cone is a traffic cone, I have used 100mm pipe throughout with blast gates at each machine, I have to say the system works fantastic the Cyclone extracts 80% of the saw dust with the rest going outside, John