Airwalker16
Well-Known Member
So here's the new 9 site in the tent! I'll post pics of the little guys in the mini rdwc here shortly. It's working great!
My 8-3590 cob diy.
- Thread starter Airwalker16
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Airwalker16
Well-Known Member
As promised.
I'm so glad I switched the supply lines to 5/16" everything. The flow is SO much better now. With 1/2" there was no waterfall at the end buckets. I've included pics of the very first bucket on the line of only 4 & the very last bucket on the line of 5. As you can see, it's the exact same. I added airstones for shits n giggles.
But they appear to be growing. Slowly but surely. I woulda waited longer to put them in here, but a few seedlings had stretched literally over 6" and I had to bury the stems in medium.
I'm so glad I switched the supply lines to 5/16" everything. The flow is SO much better now. With 1/2" there was no waterfall at the end buckets. I've included pics of the very first bucket on the line of only 4 & the very last bucket on the line of 5. As you can see, it's the exact same. I added airstones for shits n giggles.
But they appear to be growing. Slowly but surely. I woulda waited longer to put them in here, but a few seedlings had stretched literally over 6" and I had to bury the stems in medium.
Bigdaddy212
Well-Known Member
I was going to tell you that 1/2 was not going to cut it 3/4 or 5/16 makes all the difference
Airwalker16
Well-Known Member
Those are two totally different sizes from 1/2"... 5/16" is supply and 1/2" is returns now.
Bigdaddy212
Well-Known Member
wow I can't believe you can get the levels right with that return only being 1/2 I think your going to run into problems with roots clogging up the lines
Airwalker16
Well-Known Member
Man I ran a full scale one just before. This is a miniature just for vegging to about a foot tall. Been running for over a week now with no problems. It runs perfectly. Once they're about a foot tall though, they then go into the 5 gal RDWC. Get it?!
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Airwalker16
Well-Known Member
Big one was 3/4" returns and 1/2" supply, but the new 9 site build has 1" returns and the same 1/2" supply.
Bigdaddy212
Well-Known Member
I see now got it yeah you shouldn't have any problems
GroDank101
Well-Known Member
@Airwalker16 do you wish you had gotten a longer heatsink like 38" or 40", or is 36" good?
Airwalker16
Well-Known Member
Bro with my 2 140mm fans, it DOESN'T get hot AT ALL..
GroDank101
Well-Known Member
@Airwalker16 for my cxb3590 build, do you think I should use pin heatsinks or just go the heatsink usa route?
Airwalker16
Well-Known Member
Is probably use pins. I built mine long before pins were really.... available. But, the extruded route is also very cool. Bar builds are very easy to utilize in many ways. 4 on a 36" at 1750 ma will give you a decent amount of photons. Use some 140mm cpu fans though and you'll have a light that'll last for years.
GroDank101
Well-Known Member
@Airwalker16 after exploring my options for a build, its looking like I'm going to run 8 (36v) cxb 3590 and 2 hlg185-1750 or 2 hlg185-2100, and 2 heatsinks with 4 cobs each.
I want to run my drivers outside the tent. So can I skip buying aluminum L angle to connect the heatsinks, and just have 2 separate lights on their own hangers?
I want to run my drivers outside the tent. So can I skip buying aluminum L angle to connect the heatsinks, and just have 2 separate lights on their own hangers?
Airwalker16
Well-Known Member
Absolutely you can. I just wanted them connected. Also, there's no such thing as a 185-1750/2100. Those amperages are available in the 240 & 320 models only. And you need to know which amperage you want to use. Because you can run 4- 3590's on a 240-1750 but only 3 on a 240-2100. If you want 2100, you need to use 2- 320-2100 's which can run 5 3590's. Or of course, 3- 240-2100's running only 2 cobs on the third one. Regardless though, definitely grab "B" models. That way you can add potentiometers to the dimming leads provided on the driver for precise dimming from 0-100% rather than an "A" model where you turn a screw ON the driver that's underneath a rubber plug giving you only 50-100% dimming capabilities.
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Airwalker16
Well-Known Member
Just know, the drivers really don't put off a lot of heat. Yes, they get hot. Too hot to touch even. But I dont think it really causes any problems with temps inside say a 4x4 or 4x8 tent because that heat just kinda hangs out right around the area around them. But of course, do as you please. I have built both styles.
GroDank101
Well-Known Member
That all makes perfect sense, thanks for the help @Airwalker16
So after reading that, I think I'll use two 240-1750 with 8 (36v) cxb 3590 just to keep things as simple as possible.
So after reading that, I think I'll use two 240-1750 with 8 (36v) cxb 3590 just to keep things as simple as possible.
Airwalker16
Well-Known Member
That's what I used & it's pleeeeenty bright . What space are you using these in?
GroDank101
Well-Known Member
Its for a 4x4 Apollo tent. The only reason I didn't go with the 4x8 is for lack of room. And I know there will be plenty of time for upgrading in the future, when I recoup some funding and gain growing experience.
Would you recommend using the lenses like you used? It looks like they protect the cobs nicely.
Would you recommend using the lenses like you used? It looks like they protect the cobs nicely.
Airwalker16
Well-Known Member
No no no. I used to. But id highly reccomend using the angelinas now. They're so much better. I almost wanna throw diffusers on all of mine to spread my light out more evenly.
