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Laminar Flow Cabinet Build


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#1 pr0wlunwoof

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Posted 09 November 2021 - 11:10 AM

So last weekend I got kinda fed up with my SAB. It works, but I just feel I would have more fun with a cabinet. So far I have sourced my Hepa Filter and my blower. I still need to source some electrical pieces, but I need to see what I currently have at the house.

 

Blower.PNG

 

Hepa Filter.PNG

 

If you guys have any tips or tricks let me know. I am following a guide from FreshCap to this point. 


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#2 bezevo

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Posted 09 November 2021 - 01:25 PM

Some have used a  a  router speed controller from Harbor Freight ,    ....well to control fan speed heh

 

good luck


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#3 pr0wlunwoof

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Posted 14 November 2021 - 07:05 AM

Got my parts in. Time to get to building. This motor is two speed and not compatible with a speed controller.d48541ee0330157c91f8d3955fc9ed13.jpg

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#4 Myc

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Posted 14 November 2021 - 11:54 AM

Good call on the speed control.

You have to have a "shaded pole" motor in order to vary the speed with a triac or other motor controller.

That or a variable frequency drive and compatible motor.

 

Best of luck with your build.


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#5 kilo.p

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Posted 16 November 2021 - 01:51 PM

Cool project, gonna save a ton of$$$$ building it yourself. Have you decided on box material. Just curious, i was thinking about doing one of the as well.

Hope it keeps everything nice and clean for ya. Keep us posted on the build

good luck



#6 pr0wlunwoof

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Posted 17 November 2021 - 08:47 AM

Cool project, gonna save a ton of$$$$ building it yourself. Have you decided on box material. Just curious, i was thinking about doing one of the as well.

Hope it keeps everything nice and clean for ya. Keep us posted on the build

good luck

 

Yeah we decided to use some reclaimed plywood. So far the main box is pretty well done. Decided on a 14x14x1 pre-filter so he has to design the box around the fan to fit that filter. Then we have to wire it and put it all together. I am hoping to have it done this weekend. I would like to play with expanding some liquid culture and it would make it allot easier than trying to use the SAB.

 

So far I have $134.37 in the blower and $205.19 in the HEPA filter. Probably gonna have another $30 in wiring, switches/plugs, and misc.

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#7 Myc

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Posted 17 November 2021 - 10:16 AM

Nice looking project so far. When you get to the electrical part I could help if you run into any problems.

 

The budget for your build is spot-on.

Here's a link to my build:

https://mycotopia.ne...ing-a-flowhood/


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#8 TVCasualty

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Posted 17 November 2021 - 11:56 AM

Nice! DIY hoods are the way to go IMO (if possible).

 

FWIW, an important design detail that's easy to overlook or forget is to make sure the blower's output is not blowing directly at the filter (have the blower air enter the box perpendicular to the filter face).

 

And something I added to mine that I'm really glad I did was an extra electrical outlet on top of the box, like so:

 

HEPA Filter7 copy.jpg

 

The cord is an extension cord wired into the blue outlet box that contains a switch for the blower and the extra outlet (which I use for my blender and impulse sealer; it's really nice to be able keep their cords off the ground, among other advantages). The switch operates a really short length of extension cord that I plug the blower into. I wired in that way so I could take the blower out easily, which I've never had to do but whatever).

 

 

 



#9 pr0wlunwoof

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Posted 17 November 2021 - 02:00 PM

Nice looking project so far. When you get to the electrical part I could help if you run into any problems.

 

The budget for your build is spot-on.

Here's a link to my build:

https://mycotopia.ne...ing-a-flowhood/

Nice build. This fan has 2 speeds so I am going to put a double pull switch in line. 1 for on off 2 for high low. 



#10 pr0wlunwoof

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Posted 17 November 2021 - 02:02 PM

Yes I do like the addition of an outlet and had it in my build list. I want to be able to run my Sealer and a few other tools without having to pull an extension cord in addition. 


Edited by pr0wlunwoof, 17 November 2021 - 02:02 PM.


#11 Arathu

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Posted 17 November 2021 - 08:08 PM

https://worldradiohi...Exp 1944_02.pdf

 

A document that talks about using a VARIAC for AC speed control especially of fans...an oldie but a goodie IMHO..

 

A



#12 pr0wlunwoof

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Posted 18 November 2021 - 09:03 AM

More Progress!

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#13 Myc

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Posted 18 November 2021 - 10:51 AM

That is some nice work. Your craftsmanship is readily apparent.

Countersunk screws, clean radii on the curved cuts..........

Just damn fine work there !!!



#14 pr0wlunwoof

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Posted 18 November 2021 - 11:00 AM

That is some nice work. Your craftsmanship is readily apparent.

Countersunk screws, clean radii on the curved cuts..........

Just damn fine work there !!!

Thanks for the complements. My buddy is actually doing this for me. He loves wood working and he failed to help me with my dining room table several months ago like he promised so I let him make it up to me ;) . I have also promised him some mushrooms in return. 



#15 pr0wlunwoof

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Posted 19 November 2021 - 08:08 AM

More progress to report! Headed to the hardware store to get a window seal and some polyurethane to seal everything up.9beec4a451a7528b95285bdd62f1ef82.jpg1e815bf6c289a6d59a47da59fe689f73.jpg86f1761728e2f8f798ab4cfe5e549170.jpgee7c5d6d76fe0a958bfbe680745fef9b.jpg47e7824c2ca5ca90b056f8090db9bebd.jpg

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#16 pr0wlunwoof

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Posted 20 November 2021 - 12:31 PM

Look what just got dropped off. All yhats left is polyurethaning everything and wiring it all up.fa03f42def8b55acfff762a2b4b9d9e3.jpg8450820f440e7e3cb9832288be94562a.jpg

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Edited by pr0wlunwoof, 20 November 2021 - 12:34 PM.

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#17 Myc

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Posted 20 November 2021 - 06:13 PM

That is some of the finest craftsmanship I have seen in years.

Whoever built that for you deserves a bonus.

It is astonishing to see that these types of skills live on. Tell your friend that they have my unconditional respect for such a detailed build. I rarely pass out compliments. This one is worthy of:

 

:Archive Material:

 

I haven't made that note in a long time.  We need more folks like you around these parts.



#18 rockyfungus

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Posted 20 November 2021 - 06:34 PM

Do you mind sharing the final cost including shipping if amazon charged for blower/filter.

Just curious how much a prebuilt compares. 


Edited by rockyfungus, 20 November 2021 - 06:34 PM.


#19 pr0wlunwoof

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Posted 21 November 2021 - 08:10 AM

So far I have $134.37 in the blower and $205.19 in the HEPA filter thats with shipping and tax. I spent another $50 on wiring and polyurethane and brushes. The wood was all reclaimed/scrap so no cost there. All in right around $400.

Of course my friends time would be a premium, but I have purchased his Thanksgiving turkey and will be brining, smoking, and delivering that to him the day of. I got the 16lb turkey for 87cents a pound and will have $2 in brine ingredients and will use $5 worth of charcoal. So I will be trading $20 worth of ingredients and about 5 hours of my time.

I got good friends and I maintain them very well.

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#20 rockyfungus

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Posted 21 November 2021 - 11:59 AM

Knowing me and my clumsiness and inability to cut straight. Or source correct materials.

 

I spent $300 on labor and less headaches. If time is money I saved money in the end.


Edited by rockyfungus, 21 November 2021 - 12:01 PM.





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