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1: Shaker Felt filter bags from Highland woodworking. Has anyone else had trouble getting a tight seal with these? I keep getting little plumes of dust along the sides of the dust collector. With all the different color exotics I've been working with, it's starting to look like quite the modern art piece. I'm using the 20" bag on a Delta 50-850.

2: Rockler's bridged hose clamps. I picked up a pack of these today at Rocker thinking they were the best idea I'd seen all week, but they seem to spiral in the opposite direction of all of my dust collection hose. And yes, I've tried turning them upside down, but that doesn't change the spiral direction. I've got two different brands of hose in my shop, and they both have Z-twist spirals. The hoses seem to be designed for S-twist spirals. Is there something I'm missing?
 

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2) I bought spiral pipe from Woodcraft with a left hand spiral direction, so they don't work with most bridged clamps.

Lee Valley has both right and left handed bridge clamps, but they are around $5-7 each. This seems pricey when a flat hose clamp is around $2.

I made my own bridge clamps by bending a flat hose clamp using 2 pairs of duckbill pliers. Start with a clamp an inch longer than the final size. Bend the solid part backwards at about a 45 degree angle. Make a second bend about an inch away so the 2 sections leave a gap of 1/8" and 1/8" tall.

I have made around a dozen bridge clamps this way. It only takes a few minutes each. They seal really well around the wire.

Steve
 

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To determine the spiral direction of your hose, look at the end of the hose. If the spiral goes away from you in a clockwise direction, then the hose has a right-hand spiral. Left hand spiral is out there, but it is generally so you have to buy parts from a particular purveyor, and much more expensive.
 
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