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FoTwenty
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Registered: 05/31/13
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Flow hood help
#24190912 - 03/25/17 05:38 AM (7 years, 1 month ago) |
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I did the lighter test And yesterday I did the incense stick around the edges and I noticed that the FH actually sucks a tiny bit of air in at the to left corner and blows it out almost to the center... Any comments?
Can I fix this?
-------------------- "I have realized that the past and future are real illusions, that they exist in the present, which is what there is and all there is.” ― Alan Wilson Watts

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bodhisatta 
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Registered: 04/30/13
Posts: 61,891
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Re: Flow hood help [Re: FoTwenty]
#24191147 - 03/25/17 08:27 AM (7 years, 1 month ago) |
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Turn your flow cabinet into a flow hood
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FoTwenty
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Please tell me how I can do this?
-------------------- "I have realized that the past and future are real illusions, that they exist in the present, which is what there is and all there is.” ― Alan Wilson Watts

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bodhisatta 
Smurf real estate agent


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Re: Flow hood help [Re: FoTwenty]
#24191191 - 03/25/17 08:45 AM (7 years, 1 month ago) |
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Really?
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FoTwenty
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You mean puting the walls in te corners? I apologize for my ignorance...
-------------------- "I have realized that the past and future are real illusions, that they exist in the present, which is what there is and all there is.” ― Alan Wilson Watts

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FoTwenty
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Re: Flow hood help [Re: FoTwenty]
#24191211 - 03/25/17 08:56 AM (7 years, 1 month ago) |
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What's the difference
-------------------- "I have realized that the past and future are real illusions, that they exist in the present, which is what there is and all there is.” ― Alan Wilson Watts

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FoTwenty
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Re: Flow hood help [Re: FoTwenty]
#24191586 - 03/25/17 11:27 AM (7 years, 1 month ago) |
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Any help?.
-------------------- "I have realized that the past and future are real illusions, that they exist in the present, which is what there is and all there is.” ― Alan Wilson Watts

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DutchMyco
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Re: Flow hood help [Re: FoTwenty]
#24191826 - 03/25/17 12:54 PM (7 years, 1 month ago) |
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Yes, just box it in to keep outside air from getting sucked into your workspace. Here's a link to one: http://www.instructables.com/id/Portable-Laminar-Flow-Hood/
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FoTwenty
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Thanks man. Not just on the sides? All four corners?
-------------------- "I have realized that the past and future are real illusions, that they exist in the present, which is what there is and all there is.” ― Alan Wilson Watts

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DutchMyco
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Re: Flow hood help [Re: FoTwenty]
#24191888 - 03/25/17 01:15 PM (7 years, 1 month ago) |
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Yes. Anything would help I guess, but I don't see why you shouldn't add a (see trough) top and bottom on it if your going to build something anyway.
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bodhisatta 
Smurf real estate agent


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Hire someone to do it for you if you can't fathom how to put a hood on your filter
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FoTwenty
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Does the plexiglass has to be close to the edge of the filter or can I install around the box. I'm trying to do this by myself, I'm waiting for the 1900 filtrete to arrive. If one filter doesn't work I will buy another one. Do the lighter and incense stick test, and if that doesn't work I will install the plexiglass.
-------------------- "I have realized that the past and future are real illusions, that they exist in the present, which is what there is and all there is.” ― Alan Wilson Watts

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c10h12n2o
serial dilutor



Registered: 01/21/15
Posts: 3,200
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Re: Flow hood help [Re: FoTwenty]
#24193126 - 03/25/17 08:52 PM (7 years, 1 month ago) |
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please not that instructable, it is very bad info and will not give laminar flow
either build a plywood, plexiglass, metal, or glass box around your filter (i built it into mine)
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  C10's Agar Guide + Tips and Tricks | c10's Flow Hood Build Guide "Partial knowledge is more triumphant than complete knowledge; it takes things to be simpler than they are, and so makes its theory more popular and convincing." "Convictions are more dangerous enemies of truth than lies" ― Friedrich Nietzsche
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FoTwenty
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Wow. Yours looks awesome. Wat are te materials for yours. My filter is kinda weird if I put the incense up close my filter sucks it a little bit wtf!. Even reducing the air intake. I have no other option than enclosing it like yours.
-------------------- "I have realized that the past and future are real illusions, that they exist in the present, which is what there is and all there is.” ― Alan Wilson Watts

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FoTwenty
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Re: Flow hood help [Re: FoTwenty]
#24193905 - 03/26/17 07:07 AM (7 years, 1 month ago) |
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Could you provide more pics?
-------------------- "I have realized that the past and future are real illusions, that they exist in the present, which is what there is and all there is.” ― Alan Wilson Watts

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c10h12n2o
serial dilutor



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Posts: 3,200
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Re: Flow hood help [Re: FoTwenty]
#24194915 - 03/26/17 02:31 PM (7 years, 1 month ago) |
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i just used plywood and plexiglass, aluminum on the bottom.
just went with a design inspired more from lab equipment than the standard forum build, but i couldnt have done it without memorizing all the teks
you can probably solve your problem by building a simple frame around your hood, just sit plexiglass on it
here is the thread where is was building mine https://www.shroomery.org/forums/showflat.php/Number/24137384/page/1
i will post the design plans soon, just gotta polish em up so that they make sense to someone other than me haha..
it has some tricky measurements, if the standard flow cab is a 1/5 difficulty carpentry wise, mine is probably a 2.5/5 project. no dovetails or any special joints though
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  C10's Agar Guide + Tips and Tricks | c10's Flow Hood Build Guide "Partial knowledge is more triumphant than complete knowledge; it takes things to be simpler than they are, and so makes its theory more popular and convincing." "Convictions are more dangerous enemies of truth than lies" ― Friedrich Nietzsche
Edited by c10h12n2o (03/26/17 02:32 PM)
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FoTwenty
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What you guys think?
-------------------- "I have realized that the past and future are real illusions, that they exist in the present, which is what there is and all there is.” ― Alan Wilson Watts

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c10h12n2o
serial dilutor



Registered: 01/21/15
Posts: 3,200
Loc: the abyss
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Re: Flow hood help [Re: FoTwenty]
#24198617 - 03/27/17 11:37 PM (7 years, 1 month ago) |
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should help with what you were dealing with, though its kinda hard to see much in the pics
could use silicone caulk (some kinds are specifically for plexiglass) to seal it off
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  C10's Agar Guide + Tips and Tricks | c10's Flow Hood Build Guide "Partial knowledge is more triumphant than complete knowledge; it takes things to be simpler than they are, and so makes its theory more popular and convincing." "Convictions are more dangerous enemies of truth than lies" ― Friedrich Nietzsche
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Hugofly
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Registered: 12/31/16
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Quote:
DutchMyco said: Yes, just box it in to keep outside air from getting sucked into your workspace. Here's a link to one: http://www.instructables.com/id/Portable-Laminar-Flow-Hood/
Sorry but this one is not a nice one and doesn't even have a HEPA H13 filter.
I found this one:
http://www.orchideenvermehrung.at/english/lfh/construction%20manual.htm
Very nice
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c10h12n2o
serial dilutor



Registered: 01/21/15
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Re: Flow hood help [Re: Hugofly]
#24213383 - 04/02/17 02:21 PM (7 years, 1 month ago) |
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that link above is solid (2nd of course, not first)
i made a build thread for mine if you are interested
https://www.shroomery.org/forums/showflat.php/Number/24201748

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  C10's Agar Guide + Tips and Tricks | c10's Flow Hood Build Guide "Partial knowledge is more triumphant than complete knowledge; it takes things to be simpler than they are, and so makes its theory more popular and convincing." "Convictions are more dangerous enemies of truth than lies" ― Friedrich Nietzsche
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