Back in December I picked up an old squirrel cage blower for $5. I got it from a drywaller that used it to remove dust and speed mud drying, but he was getting out of the business because of lung issues. I told him I was getting it to make an air cleaner and he said, "Wish I'd thought of that 20 years ago." Made me think about why I wanted one...hopefully save my lungs from dust.
So far I've built most of the box for it. I used my Kreg pocket hole set for the 1st time and boy did that make things easy. I over drilled a few holes so there are some "bumps" in the MDF in a few places from the scew heads, but it seems to hold well. I have a roll of washable furnace filter that I will use for the first filter and then some finer filters for the second stage. I have it on a moble cab right now so I can move it from the lathe to bench when sanding at each. I hope to finish it up this weekend, but with the warm weather, outside clean up might take time away from that...here are a couple of picks. I'll update when I've done more and let you know how it works.
Any ideas on how to determine the CFM of the blower? It's a 1750RPM 1/6HP motor.