EDIT: Dust ‘Collector’ Ground Wire
OK, finally getting around to grounding my 20′ length of dust collector 4″ flex hose.
They say to use a bare stranded copper wire, 16AWG, and that antenna wire will work too. Only problem is I can’t find any bare stranded wire in San Diego! Called everybody.
so, where do I get this, and, can I use another type of copper wire? I’m running one length down the hose, and another spiraling around the hose.http://woodsshop.com/
Edited 8/17/2009 11:57 am by JoeWood
Replies
Don't know about the bare stranded wire source, but flex hose already has a metal "spring"/conductor in it. You may want to try simply grounding that existing internal conductor and see if that does the trick.
Mike Hennessy
Pittsburgh, PA
Everything fits, until you put glue on it.
Thanks Mike, turns out my local Rockler store has that ground wire, also got some of that clear flexible hose to replace the black hose I was using. The clear is much smoother inside :-)http://woodsshop.com/
This article on DC ground may be worth reading before you go to all that trouble.
I'll fix the title of your post.
Great catch, FG!!I thought that this topic had been beaten into oblivion already. - lol
It comes up occasionally still. Keep in mind, too, that not everone agrees with Rod's conclusions. I certainly don't worry about dust explosions, and try to avoid the static shocks. But if I do get a shock (very occasionally), I look at it as an effective way to wake up without the use of caffeine. If I had a pacemaker, I might be less cavalier about it, LOL!forestgirl -- you can take the girl out of the forest, but you can't take the forest out of the girl ;-)
Thanks for that ling FG, but The reason I wanted to finally ground my black flex hose was because of the chip dent I've been getting when planing old growth wr cedar. When I'd walk under the hose my hair would stand up from the static, and I heard that grounding might help the flow.Here's what I did. I found that ground wire at my local Rockler store. I also picked up some new clear flex hose that has a spiral wire all around the outside. The rep said to just ground each end of that wire and not even run a new wire inside.That's what I did, and now I have 0 static when I walk around the hose. Kind of neat seeing all the chips getting sucked away too.Cleared up my chip dent about 50% too :-)http://woodsshop.com/
Interesting finding Joe.
1. Do you find fine dust clinging to the exterior of the flex hose?
2. Did you purchase PVC or polyurethane flex hose? In my part of the world polyurethane is almost double the cost.Dr. Cole's studies focused on rigid PVC drain pipe, which should have different chemical and electrical properties than the flexible PVC and/or polyurethane products. I have invited him to comment on the flexible hose issues.Don
Don, i'm not sure but the hose material is soft, so maybe it's polyurethane? http://www.rockler.com/product.cfm?page=16957no dust clings to it, but neither did it cling to my (ungrounded) regular black flex hose.http://woodsshop.com/
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