DC Squirrel Cage Microblowers vs. PC Fans
- Thread starter Oregonism
- Start date
microsmyname2
Member
i have no doubt that it will work wonders for air circulation.
the scrubber you might run into a few problems, HOWEVER im sure it can be done with the proper scrubber and fan.
IF you dont mind i want in on this ive always wanted to try dc blowers for a scrubber.when i get some cash ill mess around with some of those cheaper ones i mentions earlier and give you some feed back on them if their worth it or not. as long as you don't mind that is. i don't wanna hijack your thread.
who know you might get a spot on the DIY-link-orama.
Oregonism
Active member
Check out Chloemobile's latest grow in his sig, I believe he is running the blower/scrubber if I am not mistaken. One of the original inspirations for this thread!
Absolutely, the more research the merrier I say, this thread is meant to be highjacked, especially with pertinent info and whatnot.
I always fill up my plate too much, but I need to get a setup going quickly and im on the hunt too. I have two temp cabs going and a more permanent flower box, mostly built tomorrow, woot! Sadly might copy Chloemobile directly and hunt out that blower he is using, I believe it was less than $20.
Then I have pll's and maybe an led to dick with, phew.....lights off
who know you might get a spot on the DIY-link-orama.
Group effort lets make this one a good show!
microsmyname2
Member
nice ill have to check that out inna sec. ya i also have 2 boxes with standard cfl bulbs i wanna upgrade tho. right know it just rubber maid containers one for flower 210 watts. one for veg/mother/clones only 13 watts. im ok with getting 1/2 oz+ every 60 days or so atleast for now, ive got a few dressers/small cabs i wanna play with and sell these rubber maids to a buddy of mine. pll's is wat ill be using more then likely. i wish i had the money for some led's tho. :-/
moneys tight right now so it will be a while before i get some good shit rolling.
moneys tight right now so it will be a while before i get some good shit rolling.
I have been thinking of using a cheap bathroom exhaust fan for venting through a large flat surface area scrubber, about 1 inch of carbon. Anyone know if you can run one of those ac type fans on a speed controller? My thinking is if I can get the fan speed down to a stealthable noise level, the static pressure would still have to be much greater than most any PC fan. Any electrically inclined cats out there know if a controller would work?
quinoa64
Member
LOL yeah, an AC controller will work with an AC bathroom fan. All fan motors are just motors, there's not much too it, from an electrical point of view. If you're confident wiring 110V and you want to do it on the cheap, just pick up a standard household dimmer switch and pretend the fan is a lightbulb. Dim == quiet.
For a DC fan, you can use a potentiometer (aka variable resistor, aka volume knob) but that's trickier because they come in a wide range of sizes so you have to pay attention to find one that's a match for your fan.
For a DC fan, you can use a potentiometer (aka variable resistor, aka volume knob) but that's trickier because they come in a wide range of sizes so you have to pay attention to find one that's a match for your fan.
Oregonism
Active member
Variable AC Rheostat $12.95
quinoa is absolutely right!
Dimmer switch is great, lots of others use these on their 6" and above fans. Bath fans are expensive though usually, or they are too much cfm for a little space. Check out the inline 4", they are fairly cheap.
@quinoa, my physical wiring skills are solid, but my theory is shit. Does the dimmer alter the voltage? If you have wired your DC fans into a AC/DC plug-in wall wart, could you just use the wall wart into the dimmer switch? or do you still need to run a potentiometer thru the circuit?
quinoa is absolutely right!
Dimmer switch is great, lots of others use these on their 6" and above fans. Bath fans are expensive though usually, or they are too much cfm for a little space. Check out the inline 4", they are fairly cheap.
@quinoa, my physical wiring skills are solid, but my theory is shit. Does the dimmer alter the voltage? If you have wired your DC fans into a AC/DC plug-in wall wart, could you just use the wall wart into the dimmer switch? or do you still need to run a potentiometer thru the circuit?
quinoa64
Member
The dimmer is leaving the voltage alone but using a solid-state circuit to turn the power on and off rapidly. The more you turn the knob down, the more time it's off. That's why it doesn't work to dim some fluorescent tubes -- if they don't get steady power they never turn on. For a regular light bulb or motor, the effect is the same as reducing the power, but without generating the heat that using a resistor would create.
Uhh, no I think that's a bad idea. At best it might work poorly. At worst, the constant on-off flickering would stress the circuit in the wall wart to the point where it fails and stops working or catches on fire. If nothing else, it's a backwards way of doing it -- go with steady power to the wall wart, and a variable resistor on the DC side.
Oregonism
Active member
Here's one all setup with the 120mm fan, an AC plug-in and speed controller built in.
http://www.amazon.com/Control-Cooling-System-Theater-Cabinets/dp/B007ZLFENU/ref=pd_cp_hi_2
Oregonism
Active member
One more, might go with this one next time.
http://www.amazon.com/115V-AC-Cooli...9569164&sr=8-11&keywords=pc+fan+power+adapter
Oregonism
Active member
Well, I went with a couple of these since they are so cheap. 35 cfm claimed. Just going to use them to breeze over the girls inside the cab, no venting.
90mm Rosewill Slot Case Cooler NewEgg
I also went local and bought 2 more of the 92mm Typhoons[$5] [Pc fans] but I can't find what pressure they push.
90mm Rosewill Slot Case Cooler NewEgg
I also went local and bought 2 more of the 92mm Typhoons[$5] [Pc fans] but I can't find what pressure they push.
Oregonism
Active member
Hope nobody is sick of me posting links:
here is a blower I found on ebay less than $10 and 55 CFM
DC-Fans-12V-97MM-x-97MM-X-33-MM-Turbine-Brushless-Cooling-Blower-Fan
here is a blower I found on ebay less than $10 and 55 CFM
DC-Fans-12V-97MM-x-97MM-X-33-MM-Turbine-Brushless-Cooling-Blower-Fan
V
veclo
http://dx.com/p/usb-powered-4-blade-cooling-fan-black-90679
i ordered this to cool my vertical 150w HPS gonna report how it works when i get it
i ordered this to cool my vertical 150w HPS gonna report how it works when i get it
Oregonism
Active member
Awesome...yes please do report back, like the directional. Cab looks good! Im gonna sub it...
Chloemobile
Active member
DC Squirrel Cage Microblowers vs. PC Fans
Thanks for the links oregonism!!! That 55 Cfm blower for 10 bucks is a great deal. I may get it just to try it out.
=D
Thanks for the links oregonism!!! That 55 Cfm blower for 10 bucks is a great deal. I may get it just to try it out.
=D
Chloemobile
Active member
DC Squirrel Cage Microblowers vs. PC Fans
And there is nothing sad about copying lol.
=D
And there is nothing sad about copying lol.
=D
Oregonism
Active member
T
trem0lo
My apologies for not seeing this sooner!
I was referring to the PC slot coolers, the centrifugal ones, and how they could be used to make a carbon filter. These would be ideal fans to use because the design has a higher static pressure than axial fans.
We know that can style filters have two cylinders inside one another, and the difference in diameter is the carbon bed depth. We also know that the inner cylinder is the diameter of the ducting and also the cylinder where the air gets pulled (or pushed) through.
Simply rig up an "inner cylinder" on top of a small centrifugal fan so that air gets pulled through it. Then place a larger cylinder around it and fill the difference with carbon. The longer it is, the better it would be: It would hold more carbon and have greater surface area to pull through. Not sure the exact logistics but I think that it would work well, especially in a pc case.
quinoa64
Member
Squirrel cage carbon scrubber for micro grows?
Squirrel cage carbon scrubber for micro grows?
Oh but wait, we can do better than that!
I was just reading Bulénath's thread on Panasonic Whisper fans over at https://www.icmag.com/ic/showthread.php?t=45196
Check it out, and pay careful attention to the design of the carbon filter -- it's a bed of carbon that sits on top of the upside-down bathroom fan. Here's a rough diagram:
There are three things that make this superior (I think?) to netpot-style scrubbers:
What do you guys think?
Squirrel cage carbon scrubber for micro grows?
Oh but wait, we can do better than that!
I was just reading Bulénath's thread on Panasonic Whisper fans over at https://www.icmag.com/ic/showthread.php?t=45196
Check it out, and pay careful attention to the design of the carbon filter -- it's a bed of carbon that sits on top of the upside-down bathroom fan. Here's a rough diagram:
There are three things that make this superior (I think?) to netpot-style scrubbers:
- Gravity is doing all the work of holding the carbon in place, preventing gaps.
- Replacing the charcoal is ridiculously easy - vacuum out the old, pour in the new.
- You have full control over the depth, to the extent that your fan can suck enough air through it to maintain the desired CFM for your cab.
What do you guys think?
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Chloemobile
Active member
DC Squirrel Cage Microblowers vs. PC Fans
I like that idea a lot. Just curious how effective a 3 inch x 1-2 inch carbon bed would scrub
=D
I like that idea a lot. Just curious how effective a 3 inch x 1-2 inch carbon bed would scrub
=D
