Reply by shipwright

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Posted on Final Touch on my HF Dust Collector Mod.

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8638 posts in 3767 days

#1 posted 02-06-2012 02:18 AM

I don’t really know what exactly makes a separator a “Thein” except that apparently one Phil Thein is among the many people who have devised cyclone style dust separators. That said Yes, I did make a cyclone style separator for my HFDC. It is likely unknowingly plagiarizing several I have seen before and has some of me in it too. Let’s just call it a cheap cyclone. If you follow any of my stuff here you’ll know that I like to keep it simple and cheap but not sacrificing efficiency.

Mine is made from a few cheap and easily accessible parts:
1) Metal garbage can..... stronger than plastic and it has a rim around the bottom that makes it stay put on a circular plywood support base.
2) MDF top because that’s what I had at the time.
3) Plastic 5 Gallon can.......... Makes a large volume (lower velocity) exit stream to the blower assembly, sticks down nice and deeply into the can, comes with a nice flange to screw to the MDF top, and is cheap and available.
4) Foam pipe insulation to seal the MDF lid to the can.
5) A 3/4” plywood disc mounted on the motor mounting base of the HF cart that fits inside the garbage can bottom rim
6)A 90 degree plastic DC elbow to direct the air in a cyclone style flow around the can.

I used the original HF cart but had to move the bag mounts an inch or two away to make room for the can.
Probably the only difference between mine and most others is that I thought a large bore exit flow seemed to make sense to me. I could be wrong but it works a treat and all I get in the lower bag is very fine dust.

Hope this helps


-- Paul M ..............the early bird may get the worm but it’s the second mouse that gets the cheese!

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