Another thought I had, after printing off the plans.. I noticed an 'optional' setup was to buy a commercial dust collector and use it for the 'fines' collection. In my airplane building days we always had this issue w/ fine dust coming outta the shop vac and getting everywhere.. you could never get a filter to catch this stuff.. what some people did was put the shop vac on a can, then they hooked the hose to a fitting on the side of the 'can'. Inside the can on the same fitting they ran a metal pipe down the side to the bottom of the can, and then across the bottom.. the the pipe had ton's of little 1/8" or so holes [could be even smaller and just more of them] starting about 12" from the top of the can and below.. right to the bottom. Then the can was filled w/ water.. the water pulled the dust out of the air and eliminated ALL fine dust.. no more problems.. you have to empty the can out every few days or weeks depending on how much you use it.. but maybe something like this could be done along w/ the cyclone? I'm tempted to try it.. once I get my machine running.. w/ some of these higher CFM blowers you might need a fair amount of holes/pipe but I think it would work as a muffler as well so there's another added advantage..
Jerry [ I'm thinking out loud here.. ]
JerryFlyGuy
The more I know... the more I realize I don't
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)