Quote Originally Posted by rhizome
I like the light rails a lot more than the hydrofarm movers. I've always ended up having to dick w/ the slip clutch on the hydrofarm units, and there's no travel adjustment.

Go down to Casa de Pot and have a look at the replacement hardware for sliding screen doors- those trolley sets will slip right onto your rail. Space 1 per 18" of flexx duct. You don't have a lot of weight, so you can use the single wheel trolleys and put them on the side of the rail that doesn't have the travel stops.

If your hood has the duct fittings in line w/ the bulb, and it's six inch, I've seen folks run aircraft cable right thru the duct and hood, fixed at each end. Must be braided steel or other temp resistant material- hemp twine isn't gonna work. You just have to install a mount point at each end- long bolt( also casa de pot) thru flange fitting works well. Drill flange for bolt, use 3 nut on bolt (head/flange/nut on one end, nut/flange/nut on the other to keep flange in round. You'll want to use another se of nuts to prevent cable from slipping. Run @ highest points w/ muy tension- prop need a barrel adjuster. Let run for a while w/ bulb turned off to make sure that your getting clearance off of the bulb- six inch flanges should leave enough room. CDP will also have " starter flanges" that you can mount onto your fan, if you don't want to mod the fan and moving duct must be attached to it.

In a pinch, you can run a shower curtain rod ( or 3/4" pvc pipe) paralell to the rail, and use those shower curtain rings w/ the barrell bearings- yer duct will pull a little offside, but nothing to cause a problem.

Hope this helps.

It took me a while to figure out what Casa De Pot was, but after thinking I could get all the materials from Home Depot, I was like wait Casa-Home De-pot...I like your idea with running the braided wire through the ducting and hood. Yes it's a 6" straight through hood so it should work fine. I'm a little confused how to mount the wire to the side with the fan. On the exhaust side I could just mount it inside my duct. Right now its set up to push the air through the hood, should I be pulling it? Also were you saying to mount the fan to the hood? I thought about doing that so it would just blow air from inside the room through the hood, then exhaust it outside.

Thats sort of what i'm doing right now with a 6" duct booster. Its keeping the room temp at 77f-83f and thats with a 600w that isn't beeing cooled at all. I'm using my 4" can fan to suck in cold air from outside like an intake.

Thanks For all the Help:thumbsup: