Here are the plans for the cabinet grow box that I’ve got 90% complete.
Several notes on the design:
1. Most importantly... This is my first grow. Every thing I know about growing weed, I learned on the internet.
2. This is a hobby to me. The cabinet reflects my personal tastes and splerges. It could have been made for much less money, using well-tried designs.
3. Although I'd like to start growing in a couple of weeks, it's not too late to make changes.
4. I look forward to your input.
The basics are as follows:Cabinet
- 30” by 20”, by 72” tall Closetmaid wardrobe
Available at Home Depot for just $95. This is the best deal around. There’s a built-in (structural) shelf that cuts the total height of the main compartment to about 50 inches. But by drilling four 3/16” holes, I was able to move the shelf up a bit and increase the grow chamber's vertical measurement by several inches. Light
- Eight 30 watt CFLs (240 watt total)
This should be enough for the approximately 4 square feet of growing area. I picked CFLs over HIDs because I was afraid that the additional fan noise would compromise the cabinet’s stealthy nature. I considered an LED panel but decided against it because I'd read that LED arrays are most efficient when located 18” above the plants and the grow chamber is already vertically challenged.
The CFLs will be screwed into $2 Lowes sockets mounted on a frame made of 3/4” PVC pipe. Above the lights is a 12” X 24” sheet of leather-grain aluminum I got at Home Depot for about $12.
I’ve mounted the yo-yos on the walls to save a couple more inches of vertical space.Ventilation
- Two Lian-li 140mm ball bearing fans ($16 each). Passive intake
Fans were $16 each at Coolerguys.com
. I also bought the power supply and speed adjusters (which I don’t think I’ll need), especially after reading StealthBoxIt’s excellent post. The fans are rated at 60 CFM each, and total wattage in the box is 300-350. During the summer, intake air temp will be approximately 75 during the day. So the calculations show that the fans should cool the box about 9 degrees F above ambient. Not quite optimal, but not too far off. I should never, or at least very rarely, see 90 degrees in the box.
The fans' vent warm stinky air into the upper chamber of cabinet. The air will then passively exit the back of the cabinet through a louvered vent, painted flat black. Odor Abatement
- Home made
Using ¾” X ¾” hardwood boards, dowels and a piece of super thin particle board, I made a filter frame that fits around the fan. The units are 7 inches high with about 120 square inches of surface area for the filter fabric. The filter material will be cut from a 15-3/4” x 48” Honeywell cut-to-fit activated carbon sheet that I bought for $9 from filters-now.com. One piece will fit around both units. But I may need to double this. Internal Ventilation
- Oscillating Holmes Mini Desk Tower Fan ($19) on a 6” by 6” adjustable shelf.
This unit has the smallest foot print of any ocillating fan that I found.SCROG Rack
- 3/4” PVC pipe frame, eye screws, and stringMonitoring
- Hanna HI 981504 Continuous ppm/ph/temp Monitor (about $160) for the nutrient solution and a La Crosse Technology Wireless Weather Station ($22@ sierratradingpost.com) to remotely monitor grow environment temp and relative humidity. Grow Method
I plan to use the basic stink buddy method. A section of 4” vinyl fence post (or rail) sits on top of a Centrex 10 gallon tote. Inside the rail is a tee-ed
½” PVC pipe with four EZ Clone mister nozzles. The rail will drain back into the tote reservoir so that there will be no standing water in the root zone (as opposed to DWC).
Inside the tote will be an EcoPlus 185gph pump and an air stone (air pump will be on the top shelf so as not to add heat.).
Look forward to your constructive criticism.
Edited by farm Boy, 22 August 2011 - 10:11 PM.