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Offlinetombosley8
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Registered: 10/14/13
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Re: Flow Hood Design Questions [Re: c10h12n2o]
    #24151701 - 03/10/17 03:17 PM (7 years, 3 months ago)

Hey thanks for all the help everyone!

Finally got everthing finished up yesterday, going to test it asap:evil:






Will hang lights tommorrow when I have more time.

THANX AGAIN!!!!!


--------------------

Edited by tombosley8 (03/10/17 03:20 PM)

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OfflineCapnZ
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Re: Flow Hood Design Questions [Re: tombosley8]
    #24151735 - 03/10/17 03:36 PM (7 years, 3 months ago)

That is frigging HUGE. Nice!!!
:hereyougo:


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Deep into the darkness peering, long I stood there wondering, fearing, doubting, dreaming dreams no mortal ever dared to dream before...

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OfflineDyn-A-Mite
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Re: Flow Hood Design Questions [Re: CapnZ]
    #24151784 - 03/10/17 03:53 PM (7 years, 3 months ago)

Nice build man!! Make sure you make some test plates before sitting down and really banging out shit tons of work.

Best of luck. Keep us updated.

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Invisiblec10h12n2o
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Re: Flow Hood Design Questions [Re: Dyn-A-Mite]
    #24152388 - 03/10/17 08:18 PM (7 years, 3 months ago)

good job buddy, that thing is massive!! how much plywood did you use total?

OK, so i cleaned out that 1/4 hp blower today, and tested the cfm based on the outlet area, and got some surprising numbers: free air on medium, it did around 1050cfm, and on high it did well over 1200cfm.

this is a very large blower, basically the same size as the 1/2 hp, and it has nearly double the amps rating (weird huh?)... i also tested the router speed controller and it worked perfectly :smile:

i am going to start building it tomorrow, and plan to use the 1/4 hp but leave room for the 1/2 hp (in case i need to switch).

I think instead of the box on box design, im gonna build it all out of 1 piece, with integrated walls, floor, and ceiling (kinda like the ones in labs)


--------------------

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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InvisibleTheMadHatter420
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Registered: 10/12/16
Posts: 12,942
Re: Flow Hood Design Questions [Re: c10h12n2o]
    #24152907 - 03/11/17 12:29 AM (7 years, 3 months ago)

I can't wait to see a pic!


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OfflineCapnZ
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Re: Flow Hood Design Questions [Re: TheMadHatter420]
    #24153142 - 03/11/17 05:27 AM (7 years, 3 months ago)

Sounds good c10 If that 1/4 hp motor is kicking out 1050-1200 cfm I bet you'll be fine with that. Post pics when done!


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Deep into the darkness peering, long I stood there wondering, fearing, doubting, dreaming dreams no mortal ever dared to dream before...

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Offlinemushpunx
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Re: Flow Hood Design Questions [Re: tombosley8]
    #24153187 - 03/11/17 06:46 AM (7 years, 3 months ago)

Quote:

tombosley8 said:
Hey thanks for all the help everyone!

Finally got everthing finished up yesterday, going to test it asap:evil:






Will hang lights tommorrow when I have more time.

THANX AGAIN!!!!!





God damn dude, that is a large hood! Looks like you did an awesome job!
Smart putting the handles on they're a life saver haha
Building mine was a really fun project, crazy learning experience, I knew hardly anything about wood workih and building a perfect box is harder than you would think :lol:

The top where you have the wiring coming out, I drilled a hole and pulled the wire thru it. My cord fits air tight but you can get a rubber gromet to fit it tight in the electrical department at hardware stores

I'm in a tiny apartment now, I wish I had a 12 x 24 at the moment haha

So you went with the screen over the filter, is it sturdy enough to protect the pins?


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AMU Q&A

Edited by mushpunx (03/11/17 06:55 AM)

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Offlinetombosley8
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Re: Flow Hood Design Questions [Re: mushpunx]
    #24154630 - 03/11/17 05:39 PM (7 years, 3 months ago)

Yeah the screen works great! At least for protecting the filter hope it doesn't cause any weird turbulence or blow contams off it into my sterile work.

Thanks, I'll take you advice on lysoling the filter face before each session.

I did run into a couple problems though and hoping you guys could help me out so I can get this test underway.

The filter I have has a seperator in the middle of the filter on the backside that causes a void in the laminar flow about 1/2" wide from the top to the bottom.

I added some plexi glass to the top and bottom to stop any contams from being able to come into that void. Do you guys think this will solve that issue?

I have the 3/4hp blower on the max setting but I have an extra prefilter to add resistance and lower the cfm to optimal laminar flow.

The blower must have overheated and shut itself off after about 3 hours and then came back on a few minutes later after cooling some.

My question is if I rewire the blower on a lower speed and use less resistance(no extra prefilter) will the blower be less likely to overheat?

The specs are 1255cfm at the 1.2" mark on the lower setting so I think that should do, right?

Or I would prefer to not have to rewire it and just use a speedster to slow the blower down.
Will this work?


--------------------

Edited by tombosley8 (03/11/17 05:44 PM)

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InvisibleTheMadHatter420
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Re: Flow Hood Design Questions [Re: tombosley8]
    #24154668 - 03/11/17 05:51 PM (7 years, 3 months ago)

how big is the filter?


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Offlinetombosley8
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Re: Flow Hood Design Questions [Re: TheMadHatter420]
    #24154677 - 03/11/17 05:53 PM (7 years, 3 months ago)

36" x 48" x 6"

Just would really like to use the speedster if you guys think that will solve the overheating problem.


--------------------

Edited by tombosley8 (03/11/17 05:54 PM)

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Offlinemushpunx
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Re: Flow Hood Design Questions [Re: tombosley8]
    #24154690 - 03/11/17 06:00 PM (7 years, 3 months ago)

I'm confused the front of the filter is the same all the way across, are you saying that in the middle of the filter there is a gap without flow?

I dont really get what you mean but I would think you would have to work to either side of that , I know lots of these big filters are meant for two people to be working side by side anyways :shrug:


--------------------

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AMU Q&A

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InvisibleTheMadHatter420
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Registered: 10/12/16
Posts: 12,942
Re: Flow Hood Design Questions [Re: mushpunx]
    #24154724 - 03/11/17 06:12 PM (7 years, 3 months ago)

Sounds like your fan should work at the lower setting. Just use the lighter test everyone says to use.


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OfflineCapnZ
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Registered: 12/22/16
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Re: Flow Hood Design Questions [Re: tombosley8]
    #24154786 - 03/11/17 06:32 PM (7 years, 3 months ago)

Quote:

tombosley8 said:
Yeah the screen works great! At least for protecting the filter hope it doesn't cause any weird turbulence or blow contams off it into my sterile work.

Thanks, I'll take you advice on lysoling the filter face before each session.

I did run into a couple problems though and hoping you guys could help me out so I can get this test underway.

The filter I have has a seperator in the middle of the filter on the backside that causes a void in the laminar flow about 1/2" wide from the top to the bottom.

I added some plexi glass to the top and bottom to stop any contams from being able to come into that void. Do you guys think this will solve that issue?

I have the 3/4hp blower on the max setting but I have an extra prefilter to add resistance and lower the cfm to optimal laminar flow.

The blower must have overheated and shut itself off after about 3 hours and then came back on a few minutes later after cooling some.

My question is if I rewire the blower on a lower speed and use less resistance(no extra prefilter) will the blower be less likely to overheat?

The specs are 1255cfm at the 1.2" mark on the lower setting so I think that should do, right?

Or I would prefer to not have to rewire it and just use a speedster to slow the blower down.
Will this work?




Yo Tom,

You should be able to wire are variable speed control in line on the outside oft he box without too much trouble. Just don't cheap out on the speed control or you will just have another problem on your hands.

Like Mush says I would work on the left or right side and stay away from dead center. I used his Lysol technique last week pouring plates and it worked great! 100% clean all plates after 4 days. Noc'ed em up last night.

Where my cord comes out I sealed the hole with silicone caulk. 100% sealed and worked great! Nice job on the monster hood.


--------------------
Deep into the darkness peering, long I stood there wondering, fearing, doubting, dreaming dreams no mortal ever dared to dream before...

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Offlinetombosley8
Full on... Bossley Baggins
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Re: Flow Hood Design Questions [Re: CapnZ]
    #24154903 - 03/11/17 07:09 PM (7 years, 3 months ago)

Is this cheaping out? There's no hard wiring, it just plugs in.


--------------------

Edited by tombosley8 (03/11/17 07:10 PM)

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InvisibleTheMadHatter420
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Registered: 10/12/16
Posts: 12,942
Re: Flow Hood Design Questions [Re: tombosley8]
    #24154910 - 03/11/17 07:11 PM (7 years, 3 months ago)

NOPE! I got one on the way myself.


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Invisiblec10h12n2o
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Re: Flow Hood Design Questions [Re: TheMadHatter420]
    #24155279 - 03/11/17 09:02 PM (7 years, 3 months ago)

that is exactly the one i got. i did hear RR say that if youre using this with a cap start blower, be sure you always start it on full and then reduce it as needed

ok so ive been doing some planning/modeling/drafting, and i think i have settled on a basic design... how does this look to yall?



--------------------

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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Offlinemushpunx
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Re: Flow Hood Design Questions [Re: c10h12n2o]
    #24155386 - 03/12/17 05:46 AM (7 years, 3 months ago)

^ looks good to me, essentially the same as most flow cabinets with prefilters except you are building it with a hood
Just make sure you build a proper plenum behind the filter


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Amateur Mycologists United
AMU Q&A

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OfflineCapnZ
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Re: Flow Hood Design Questions [Re: mushpunx]
    #24155568 - 03/12/17 08:50 AM (7 years, 3 months ago)

Looks awesome man! You are more ambitious than I am - I went with all right angles! :cool:

Yeah make sure you have enough room behind the filter but looks awesome!


--------------------
Deep into the darkness peering, long I stood there wondering, fearing, doubting, dreaming dreams no mortal ever dared to dream before...

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OfflineX2QE
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Re: Flow Hood Design Questions [Re: c10h12n2o]
    #24155858 - 03/12/17 10:49 AM (7 years, 3 months ago)

That looks awesome.

How much space is in front of the fan motor? Maybe you could inset it a bit and put little shelves/racks up there to hold all of your supplies.

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InvisiblebodhisattaMDiscordReddit
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Re: Flow Hood Design Questions [Re: c10h12n2o]
    #24155958 - 03/12/17 11:19 AM (7 years, 3 months ago)

Quote:

c10h12n2o said:
that is exactly the one i got. i did hear RR say that if youre using this with a cap start blower, be sure you always start it on full and then reduce it as needed

ok so ive been doing some planning/modeling/drafting, and i think i have settled on a basic design... how does this look to yall?





Looks pro quality

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