Cyclonic Filter

A cyclonic dust filter I use for extracting dust on my homebrew CNC milling machine. I was surprised how efficient it is, I don't need any additional filtering! :)
It is based on the [excellent Bill Pentz's plans](http://billpentz.com/woodworking/cyclone/).
The design has 5 parts: the cylindrical part of the cyclone, the conical part of the cyclone, the dust collecting receptacle, the vacuum connection with grille to insert a filter mat and adapter for flexible vacuum hose (you need 2 of these). All parts are connected together using bayonett-type connectors so you can take them apart and clean everything.
You could also use a plastic bucket instead of the receptacle - in this case, print the bucket adaptor instead of the receptacle and screw it on the bucket lid.
The parts are designed to be printed on any 3D printer with 20x20x20 cm build area and the clearances are big enough for fast printing.