|Forum topic by Todd Clare||posted 06-27-2010 11:33 PM||989 views||0 times favorited||5 replies|
06-27-2010 11:33 PM
I just scored a great condition Jet 1100 1 1/2hp dust collector on Craig’s List. I’ve been researching how to set it up (I want to run ducts, not wheel it around tool to tool). A few questions based on what I have (and haven’t) found on my own:
I’ve read a bunch about “to ground or not to ground” and I’m going to ground. It’s worth some effort to do it to keep my house from burning down. I know that’s a loaded discussion, but better safe than sorry IMHO. Also, it’s VERY dry here in Denver, and just playing with it yesterday with a very short run of flexible tube, I got a pretty good ZOT from my mini lathe when I got too close to the motor while the collector was on.
Duct material: I’ve read about PVC, metal and others. My shop isn’t very large so I’m drawn to the metal option. So:
1. I see people saying to not use standard HVAC ductwork and only to use really heavy duty stuff. I assume this is to prevent the less rigid stuff from collapsing? Anyone have thoughts here or experience using one or the other?
2. If I use metal ducts and make good metal to metal contact, I assume I have no need to run the grounding wire since the ducts themselves are conducting the static? I realize I may have to run small wires to cross plastic gates, etc.
I’ve been reading all about how less abrupt turns are better (45 is better than 90). Most of my tools are along one side of my shop (see the first two pics here). I was thinking of putting the collector where the shelves are in the back corner, and running a 6” duct under the wood rack with 45 degree 4” flexibles at the lathe, bandsaw, and tablesaw. I was then thinking of running some kind of branch up the wall and overhead to split and send 2 4” to the router table and drill press. I’m going to put in blast gates, and the 6” run would be about 13’ and the overhead would be a total of about 12 more… too far?
Anyone in Denver want to come over to my house and design this thing for me? :)
-- Todd (Denver, CO -- Highlands)