Cyclones are easy to build & very effective. Check out the Bill Pentz site . Also, Wood magazine had a plan some years ago that was good-more compact. Go with 6"/150mm pipe if possible. High volume / low velocity picks up fines best. I built one of each for our seniors shop c?w drop boxes. There...
I have two tools I made using 5/8 square keysteel & 1/4" x4"long HSS. drilled the hole straight in & 3" deep. The bars slip out of the handle for easy sharpening. If the handle is fixed, just loosen setscrew & remove bit to sharpen. One bit has a relief on top at tip. I am going to flatten the...
Eric. The Pentz info is the best you can get. I have built two cyclones for our seniors WW shop. One of his design & one from Wood magazine. The Wood job is not as good but is better for low ceiling situations. You can modify the Pentz design. I built a drop box for both & we haven't had to...