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absoluteZero
member
Registered: 10/27/01
Posts: 111
Last seen: 19 years, 7 months
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Fanning
#472253 - 11/28/01 10:36 AM (21 years, 9 months ago) |
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I have read that you could use a computer fan for CO2 exaust from a terranium. How would one power something like that? Thaks for any help zero
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Entheogenic
Chicken Lover


Registered: 11/23/01
Posts: 112
Loc: Midwest USA
Last seen: 7 months, 24 days
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I don't know whether a CPU fan is a good exhaust fan, but I know it'll run at 12V-DC, meaning you'll need a 12V wall-wart style adapter and some basic knowledge of splicing and soldering wires. You'd be better off going to your local Radio Shack and picking up a 115V-AC fan you can plug into your wall socket. Just figure out how many cubic feet your terrarium is (length x width x height). Each fan will be rated in CFM (cubic feet per minute) - put the fan on a timer, depending on how much air needs evacuating. Entheogenic
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"These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer J. Simpson
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BeppoMarx
old hand
Registered: 09/01/01
Posts: 1,126
Last seen: 18 years, 5 months
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i actually just found 2 old comp case fans and wired them together to some old DC converter (i think it was tyco battery charger but it said 12 volts and i know theyre 9.6 or 7.2/8.4 but aniiways it was 12 volts .5A [500MA]) chopped the connector off and stripped the wires on teh fans and twiztid the shit together. one fan is 5 1/4 and the other is 3.125". i cut out 4 pieces of cardboard and made a trapezoid 5 3/4 inches wide at the bottom and 3.125 inches at top. I cut out 4 of these and taped them together to get a 3D trapezoid stand up thing. put the smaller fan at one end (the top) and the other fan i pushed up into the wedge until it was snun. glued/taped both fans in place. taped a micron magick filter disk cut square directly on top of the bottom larger fan and cut out the botton of the sides of teh structure to allow airflow. set the shrooms (actually all i have so far are abhorts- not for long!) right on the MMFD and plug it in. o yeah and the trapezoid has one side that swings open like a door and although i have tape to hold it shut, the suction from the fans keeps it closed. i started it this morning b4 work, ill post later or tomorrow on my results on drying. oh yeah. just get some old 9-12 volrt DC converter and splice it in. my large fan (5 1/4") os 200MA (.2 amps) so you dont need much. i used 500MA for the 2 fans and they spin pretty fast, faster than in a cpu case but the 200MA converter i found in my baseent didnt work. **EDIT** its easy as hell you dont need to solder at all; i didnt. i thought about it but i didnt feel like heating up the unger at 1:30am last night. red/blue is positive and black/white is negative. if theyre both black or the same color- the one with a white stripe is black. if it shows the direction on the fan just make sure it spins in teh right direction.
-------------------- Holy shit people; COMMON SENSE! we were all born with it where did it go? maybe theres a tek out there to explain how to use it! BUCKETS BRIGADE left hand man!!!
Edited by BeppoMarx (11/28/01 11:25 AM)
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High_Beemz
journeyman
Registered: 11/04/01
Posts: 50
Last seen: 21 years, 6 months
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I don't know the volume that you are trying to air out, but I would skip all the electrical work and use a fish tank air pump and set it on a timer. Very simple and effective
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absoluteZero
member
Registered: 10/27/01
Posts: 111
Last seen: 19 years, 7 months
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I have one of these fans in my computer and is what i was thinking of useing. It is a slot fan. The slim line design would allow it to be right near the bottom, and the fan sucks pretty good. It makes quite a bit of noise in my computer, so i want an excuse to get it out of there. anywho...yeah.
what do you all think?
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