Quote Originally Posted by Whiggamore View Post
My own set-up is similar to this. It works just like it's supposed to. I see this kind of set-up for sale from $300 to $500 (or thousands, if you're into 'German engineering'). That's cheaper than a funeral is here.
I am afraid I am not sure whether the respirator is in the right place. When you buff the dust will be swung upward or downward beyond the reach of the slots of the respirator. Just take a piece of metal and grind some off in a way that you produce sparks. Check if the sparks are sucked up or not by your grinder.

IIRC Bill Ellis showed his equipement on SRP or B&B and he had his Hoover above the grinding wheel.