My 8-3590 cob diy.

Airwalker16

Well-Known Member
I leave my fans running even when the lights are out. At lower voltages I'm afraid they may fail to start and I run mine under 5 volts sometimes.
I'm confident these 2 meanwell apv12-12's the fans are running on will run for a good long time. I feel like I can rely on them.
 

Airwalker16

Well-Known Member
Some updates on the ladies. I decided to just to finish this last 5 weeks with the lights in there already. I'll save this DIY for the next run when I'm in a tent at a new location. This closet space is driving me fucking crazy. 3 solid walls sucks ass.

1st & 2nd pic is before I trained today
3rd pic is of after :hump:

After a nice res change, I also defoliated quite a bit while training. Lower guys weren't getting shit for light.
This is BARELY into week 2 guys. I'm APALLED at the trich production already. Look at the leafs frostinessssss coming off that bud. Woooo eeeee!!! Crazy.
20160214_165024.jpg 20160214_165038.jpg 20160214_170318.jpg 20160214_165057.jpg 20160214_165052.jpg 20160214_170329.jpg 20160214_165046.jpg 20160214_170334.jpg
 
Last edited:

vahpor

Well-Known Member
I like your trellis system. I'll likely have to use the 'screw as an anchor' idea for my next design. I've been threading cord through a couple holes I drilled through my pvc..it was a bit tedious, and not as taught as I'd like. These screws will solve that! Thanks.

Keep up the good work, I like your new space. Nice build.
 

Airwalker16

Well-Known Member
Ya if I did it again, one thing I'd reccomend though, is not using an Individual piece for each cross. It's tedious and bows the pvc. Just start at one corner and use one Continuous long piece to do the horizontal and another for vertical.
 

CaliWorthington

Well-Known Member
So how heavy are the glass lenses? I'm planning to use white reflectors on a passively cooled design, to keep the weight down. I see a lot of people going with lenses though. I'll ask Jerry to throw in a lens so I can see for myself. I was wondering if lenses radiate less heat downwards than a bare cob? Thus more heat absorbed into the heatsink? That would be an advantage to lenses over reflectors, if true.
 

Isawthelight

Well-Known Member
So how heavy are the glass lenses? I'm planning to use white reflectors on a passively cooled design, to keep the weight down. I see a lot of people going with lenses though. I'll ask Jerry to throw in a lens so I can see for myself. I was wondering if lenses radiate less heat downwards than a bare cob? Thus more heat absorbed into the heatsink? That would be an advantage to lenses over reflectors, if true.
I believe CaliWorthington is on the right track, that the Lens is trapping warm air on the light emitting surface of the COB so the passive heatsink shopper wisely takes this into consideration. Vf will be lower if the COB runs hotter, and that means lower efficiency to achieve a more desirable light distribution.
 
Last edited:

Airwalker16

Well-Known Member
I believe CaliWorthington is on the right track, that the Lens is trapping warm air on the light emitting surface of the COB so the passive heatsink shopper wisely takes this into consideration. Vf will be lower if the COB runs hotter, and that means lower efficiency to achieve a more desirable light distribution.
And my heatsink stays cold even at full brightness.
 

Airwalker16

Well-Known Member
Much more focused. The 3590 adapters are much more well made to minimize light leaks compared to the 3070's in the pic.20160330_072757.jpg
 

Airwalker16

Well-Known Member
Looks that way to me. But in a tent like I'm going to do, lenses may be better. But for the set up in the pic, reflectors are so perfect. Focuses each cob right ontop of each bucket. Lined up perfectly.
 
Top