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OfflineLD50
Registered: 03/31/04
Posts: 63
Last seen: 10 years, 9 months
Simple FP inspired Flow Hood for low, low cost!
    #17825463 - 02/18/13 03:51 PM (11 years, 2 months ago)

After reading some posts here of flow hood projects I figured I would contribute my recent project for you all.... This is my return to mycology and the first piece of equipment I decided to acquire/build.

I ended up getting a blower that was rated at 700 cfm a .09" static pressure so yes its a big boy. I got this blower for a real deal. I fitted a variable speed control to it and used the fine tune adjustment to get a really nice laminar flow. I literally just got done testing the flow with a stick of incense, and the results are excellent! I checked the smoke entry from the sides and there is none that penetrated the inner areas of the flow. I then placed the stick down stream to see the laminar effect and it carried the smoke on a horizontal plane for about 3 feet. As I said this blower is huge for this filter but one benefit is that I can turn the wheel down to its almost lowest setting and the motor only whispers and makes very little noise while delivering plenty of power.

The cabinet I build for the filter was very snug, and as a matter of fact the outside corner on the left side wouldnt pull in tight while finishing the construction. I sealed everything so I am sure this will provide me with 99.99% clean air like its supposed to! I really couldnt be more happy with the results of my flow hood build.

The cost is as follows.

Filter $60 shipped to me
blower $80 shipped to me
Variable speed switch $ 13 shipped to me
plywood 3/8 4x8 sheet $35
Screws,Caulk,adhesive $30
Power cord $10
Time to build 8 hrs

Grand total: $228!















I will use this very soon!

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Invisibleslapphappypill
Enthusiast!
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Folding@home Statistics
Registered: 11/07/10
Posts: 5,570
Loc: In bed with your mom
Re: Simple FP inspired Flow Hood for low, low cost! [Re: LD50]
    #17825673 - 02/18/13 04:32 PM (11 years, 2 months ago)

sweet build! I gotta do this soon.... been not using a flowhood for too long, and it gets expensive and annoying with oust spray all over me and in the air!


--------------------
We think we have freedom, but we're all just mice in a maze....

                   

FYI: I stole all my pix off google! F+ PORN! Here is a shit-ton of porn by yours truly!

I have FINALLY written up a couple teks as to how SHP has done things in the past. DISCLAIMER: This is not for the newbie to mycology, and not going to work for everyone! This is simply what works for one person when other teks and methods have failed miserably!
~~~~~How SHP does their unconventional WBS Prep!! (NO DRY METHOD)~~~~
~~~~~SHP's highly disputed method of doing ALL their work outside of a flow hood or a Still air box!~~~~~
~~~~~Troubles harvesting the side and bottom pins in your mono? Learn how!! Dunking included ;-)~~~~~

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OfflineAmanita virosa
botanist by day
Male User Gallery


Registered: 12/04/11
Posts: 2,458
Loc: north kakalacky
Last seen: 10 months, 4 days
Trusted Cultivator
Re: Simple FP inspired Flow Hood for low, low cost! [Re: slapphappypill]
    #17827622 - 02/18/13 10:04 PM (11 years, 2 months ago)

What kind of hepa filter is that. It looks pretty thin for a flow hood. Is it pleated? That is a serious blower for 80$. Is it new?

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Offlinedeadmandave
Slime
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Registered: 02/16/10
Posts: 3,375
Loc: Flag
Last seen: 11 days, 16 minutes
Trusted Cultivator
Re: Simple FP inspired Flow Hood for low, low cost! [Re: Amanita virosa]
    #17828229 - 02/19/13 12:21 AM (11 years, 2 months ago)

Awesome. Cheap filter, where'd you get it? Are you using a pre-filter?

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OfflineLD50
Registered: 03/31/04
Posts: 63
Last seen: 10 years, 9 months
Re: Simple FP inspired Flow Hood for low, low cost! [Re: deadmandave]
    #17828638 - 02/19/13 03:36 AM (11 years, 2 months ago)

That is a true hepa filter just very thin... its only 3 inches thick! The fan was purchased from a liquidator since the box was damaged. I guess kinda like a scratch and dent outlet for appliances.
I haven't place a pre- filter yet but will likely just use a thin one as well...

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OfflineAmanita virosa
botanist by day
Male User Gallery


Registered: 12/04/11
Posts: 2,458
Loc: north kakalacky
Last seen: 10 months, 4 days
Trusted Cultivator
Re: Simple FP inspired Flow Hood for low, low cost! [Re: LD50] * 1
    #17829621 - 02/19/13 10:17 AM (11 years, 2 months ago)

excellent deal on the blower for sure.  some hepa filters are not really designed for laminar flow.  not saying it wont work but i have never heard of anyone using a filter less than six inches and pleated for maximum surface area in a flow hood that worked well.  it does look like it is pleated in the pix so thats good.  I would definitely  think about stacking several pre filters.  otherwise that style of filter will clog very fast.

Edited by Amanita virosa (02/19/13 10:19 AM)

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