Designing A Killa Cabinet - Input Greatly Appreciated!! - Page 4

Agent86 · 01-12-2003, 04:07 PM

Quote:

Originally posted by cali-canuck

So 86 - if I understand you correctly, I should have the intake fans at the *same* height as the exhaust fans and on opposing walls? or do you mean leave them at the heights they are but oppose them. If so, how am I to put fans into the doors of the cab?

Leave them at the height they're at.

Quote:

Originally posted by cali-canuck
I suppose since I now have 2 chambers, I can't put the fans on the sides... can I?

Put the exhausts at the top of the cab, towards the front. Put them both right next to the interior dividing wall.
Put the intakes, on the sides of the cab, 1 on the right side & 1 on the left side, towards the back, right at floor level.

Or, if you can still give yourself 6" of space behind the cab, you could put the intakes at the bottom of the back of the cab. Put them right next to the outside wall of the cab.

Quote:

Originally posted by cali-canuck
And why only 2 fans - Intake only and let the exhaust just drift out or vice versa?

Fans should go on the exhaust.

Hope this makes sense.
Later.
86.

cali-canuck · 01-12-2003, 04:29 PM

Makes loads of sense sir ...

I will redraw the box and post version 2.1

Wow those fans look itty bitty when I draw them up! but hey - the less power I use the better

I may not be stealth size wise (or visually) but I'd love to keep the whole setup below 1000W

Cheers...

P.S. My bud just arrived so we're gonna start scheming. I may have a slew of questions for y'all when I return.

Agent86 · 01-12-2003, 04:42 PM

Forget about the co-2.
To keep heat & humidity from building up, you'll be moving a lot of air in & out of the cab.
The volume of the flowering side your cab is 27 cubic feet & the fan will move up to 105 cfm.
You'll be turning the air over 3 to 4 times a minute.

The co-2 can't stay in the cab long enough to do any good.

I tried it before & tested the air in the cab for co-2 before adding it & after with no change in the outcome.

Off to my bowling league now.
I'll check back in a few hours.

Later.
86.

cali-canuck · 01-12-2003, 11:41 PM

Hey 86,

Awwww ok... I'll stop my silly obsession with the CO2 drip. I just started a new thread asking it's validity before I read your response.

Someone else had stated that it had no value unless your light density was higher than 8000 LPS anyway.

I suppose I'll have lots of bells and whistles to fiddle with what with hydro nutes, training, etc... I don't need another piece of equipment to keep me busy

FYI,

My bud and I were thinking of making the mum cab separate from the flowering one.Then just sandwich them together and seal the deal with some well placed 4" wood screws.

That way, it would be easier to break down if I had to move it and probably less of a daunting task for us to build.

We have access to a circular saw but I still think I'd feel more comfortable having a HD fella cut the plywood at least. The downside is that it demands that we are bang on with our specs. So I'm probably going to do an exploded view of the cab and post my expected material need and measurements.

As always, opinions are highly welcomed - especially when we get down to the nitty gritty of the build. It would suck to screw up a measurement on the plywood and have to waste wood.

Cheers...

Agent86 · 01-13-2003, 01:28 AM

Making the 2 chambers seperate is a very good idea.

Start looking for a shiny piece of aluminum so you can make your own reflector.
You want to spread your light evenly across the tops of the plants.
So far I haven't seen a reflector that does this for 4 EVLs. The reflector I bought & modified keeps them crammed into a very small reflector & the outer colas on my grows suffer because of it.
Lately I've taken to moving the lights everyday. I have the reflector hanging from the top of my cab by a rope. It's real easy to raise & lower this way & I can spin the reflector around so the different light spectrums from each bulb get to all of the plants.

Your reflector doesn't need to be anything very fancy. Your cab is so small, there's really no place for the light to escape to anyway.

All you need to do is cut the aluminum sheet a little bigger than the floor of your cab & bend the edges down until it fits.
You can use plumbers tape to mount the lights to the aluminum sheet.

Or you can buy 4 wing reflectors. I've seen them in an 18" long size. They're about 7" deep though, so you would want to cut the down to 4" so your bulbs are even with the bottom. You can bend the sides inwards until 2 of them fit side by side.

Here's a pic of a wing reflector.

Later Bro.
86.

justawannabe · 01-13-2003, 08:17 AM

well now that i have read this thread Im glad i checked it out. I plan on redoing my grow space as well and making it so it can fit into my bedroom instead of the basement. Reason being is that my landlord is doing a power upgrade for me (100 amp to 200 amp service) and all the electrical is in the basement along with my grow space. Im going by HD today to get prices on 2x2's and plywood. Height will be 5' on it with 18" depth and 40" long (hopefully). I also plan to have separate areas for flowering and cloning/vegging.
On this one however the ballast and fan wil be mounted in its own space above the grow area with insulation on walls to reduce fan noise. Intake will be 4" round placed in the bottom of chamber. Frame wil be 2x2 all over and either drywall or plywood used for the shell of it. I hope to be able to build it into my existing closet without to many screw holes being used. tonight I start the build up of it. CC- if you dont mind I will post my ideas in your thread here and maybe between the 2 of us we can design suitable grow spaces. Also I work with autocad 2000 and am able to draw simple designs to scale so cut pieces wont be as difficult to size up. If you would like me to draw some things up for you I would be glad to, just give me the exact exterior dimensions, width of shell material, frame size (2x2 or 2x4) and any other details you may have and i wil get you something going.
I will be using a 250 watt hps for flowering and and CFLs for vegging/clonning areas. again, let me know if i can be of any assistance and i will do what i can.

Justa,

cali-canuck · 01-13-2003, 08:47 AM

Hey Guys!

Sounds like we're starting to roll.

86 - I'm glad I'm on the right track with the modular cab. The more I think about it the more it makes sense. Not only from a portability and construction perspective but within my own timelines as well. Learning all there is to know about bubbling is going to be enough of a new experience for me for at *least* the first grow. Cloning wasn't even something I was considering initially but I think I know the exact err... psychological result I wish to obtain from my efforts.

So if I can find that in a girl eventually, cloning would make sense.

As for the reflector, I will start to think about that asap. Any thoughts on the true base size and the angles at which the wings should be in order to get a maximum canopy of light. I suppose it's fairly simply geometry... I'll do some test drawings.

Justa - welcome welcome! Sounds like we've got some similarities in projects here. Of course you can post your ideas... that way my lifeline (Agent86) only has to go to one thread to pour his heart out

I really was hoping to make this a collaborative exercise and that's what it's turning out to be. Perhaps one day, we can republish an abridged version of the thread as Super Cab Plans or something.

Let's try sharing the thread for a week or so and if it gets too crowded we can think of splitting off into two with the promise of keeping an eye on both?

Your offer of the cad work is really helpful! I only use my drawings for basic visualization and, as I said, am nervous of having a third party cut my wood but I reckon that's the only way to get professional squaring and angles. Our current concern is the best and most stable way to frame this puppy.

---

I must be off to the 9 to 5 but I will do a new whack of drawings tonight showing the separated cabs and a possible reflector size.

Whoohoo! I'm stoked

Thanks again everyone,

Cheers...

cali-canuck · 01-13-2003, 10:04 PM

So there you have it.

The decision is made. I will buy the materials for both the mum cab and the flowering cab but perpare for the possibility that the mum cab will be made at a later date. Or maybe I'll just draw up the spec (with some super CAD wannabe help perhaps

) and save it for a rainy day...

Ok, so the decision isn't *completely* made but we're closer. I am currently mocking up the cabinet v2.2 based on discussions and trying to figure out the best reflector for my space.

In the mean time - here is a concept I was thinking of to put my exhaust light trap on the inside so there isn't an obscure bunch of pvc jutting out of the ceiling. The drawing is intended to be the underside of the top of the cab.

Take a peek at this puppy and give me your thoughts. The grey circles are holes cut into the PVC. There are probably too many of them and the ones furthest from the fan may not get any action but it's just a concept.

Lemme know

Cheers...

cali-canuck · 01-13-2003, 10:38 PM

I'm pretty exhausted tonight.

Hey, that was funny considering the last post

Ok, maybe 'funny' is a bit strong...

Anyway, here is a quick doodle of the cabinet version 2.2 in the upright position. It shows the new placement of the exhaust and intake holes, an idea of how to incorporate that internal exhaust light trap and a guess on the reflector and pulley system.

I've pinged Europa about the reflector hood so maybe he'll drop by and say hello.

Keep those ideas coming!

Cheers...

Agent86 · 01-13-2003, 10:38 PM

That might work, but I think it's kid of overkill.
Also, the more tubing the fan has to pull the air through, the more resistance there is. So your new design idea might actually restrict to much of your airflow.

I see where your trying to go with it though.
It would give you better air circulation.
To make it work, you would need a pretty big exhaust fan & it would be pretty noisy.

Later.
86.

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