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metaphoric
Mr. Bater



Registered: 05/18/15
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Using math to determine FAE holes.
#26816690 - 07/11/20 07:42 AM (3 years, 7 months ago) |
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I'm making SOS boxes which are basically monotubs except not as tall. They're a little taller than a shoebox. I want to keep them in stacks of 6 so I can't flip the lids. I don't want to put giant 1.5" holes in it since the walls are so short so I did the math to determine how many .5" holes would be equivalent to the 6 standard 1.5" holes in a typical modified monotub.
6×3.14×.75^2= 10.6 square inches of FAE.
1 half-inch hole = .2 square inches of FAE.
10.6÷.2 = 53 holes
So I'll drill 53 half-inch holes around the sides of my SOSs and cover them with 1 layer of micropore tape.
That sound logical? Any changes anyone would like to suggest? Anyone think it's a good idea or bad idea?
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Tight Lunchbox
Drunk cat


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Re: Using math to determine FAE holes. [Re: metaphoric]
#26816749 - 07/11/20 08:11 AM (3 years, 7 months ago) |
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You will dial in tubs based on your environment using micropore tape or polyfill, so hole size isn't too important as long as they aren't too big or too small.
To me it would seem better to have fewer holes to adjust FAE. 53 seems way too complicated.
-------------------- "it's all a joke between mom contractions and coffin fittings" The most useful tool for noobs
Edited by Tight Lunchbox (07/11/20 08:13 AM)
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Hartford
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Registered: 11/27/19
Posts: 1,127
Loc: Tennessee
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Re: Using math to determine FAE holes. [Re: metaphoric]
#26816758 - 07/11/20 08:15 AM (3 years, 7 months ago) |
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That's a lot of big holes for such a small tub. And I don't understand your figuring. The math seems wrong. I would do a proportion to scale it down to your size, and even then, it seems kind-of arbitrary, given the fluid dynamics and polyfil density differences.
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Zifozonke
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Registered: 03/24/19
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Re: Using math to determine FAE holes. [Re: Hartford] 1
#26816778 - 07/11/20 08:39 AM (3 years, 7 months ago) |
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https://www.shroomery.org/forums/showflat.php/Number/26185325#26185325 Pasty easy monos ... Work great!! No need to flip lids and you can still stack
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LotKid
Never.Trust.A.Prankster


Registered: 01/07/17
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Re: Using math to determine FAE holes. [Re: metaphoric]
#26816797 - 07/11/20 08:49 AM (3 years, 7 months ago) |
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Quote:
metaphoric said: I'm making SOS boxes which are basically monotubs except not as tall. They're a little taller than a shoebox. I want to keep them in stacks of 6 so I can't flip the lids. I don't want to put giant 1.5" holes in it since the walls are so short so I did the math to determine how many .5" holes would be equivalent to the 6 standard 1.5" holes in a typical modified monotub.
6×3.14×.75^2= 10.6 square inches of FAE.
1 half-inch hole = .2 square inches of FAE.
10.6÷.2 = 53 holes
So I'll drill 53 half-inch holes around the sides of my SOSs and cover them with 1 layer of micropore tape.
That sound logical? Any changes anyone would like to suggest? Anyone think it's a good idea or bad idea?
I'm no math scholar but as far as farming... I'm gonna say... bad idea.
53 holes sounds like a fuck ton. Damn near SGFC territory.
I dont follow your math, one bit. Here's my neanderthal take on it. 1.5"/3= .5" So three .5" holes for each 1.5" hole.
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Dark fatal7
Mycophile


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Re: Using math to determine FAE holes. [Re: Zifozonke]
#26816798 - 07/11/20 08:50 AM (3 years, 7 months ago) |
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The person who wrote up the sos boxes does it no holes. He even said he stacks his. If you must I would stick with a few small holes then many. Try running some with no holes first.
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LotKid
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Re: Using math to determine FAE holes. [Re: Zifozonke]
#26816801 - 07/11/20 08:52 AM (3 years, 7 months ago) |
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metaphoric
Mr. Bater



Registered: 05/18/15
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Re: Using math to determine FAE holes. [Re: Hartford]
#26816804 - 07/11/20 08:53 AM (3 years, 7 months ago) |
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Quote:
Hartford said: That's a lot of big holes for such a small tub. And I don't understand your figuring. The math seems wrong. I would do a proportion to scale it down to your size, and even then, it seems kind-of arbitrary, given the fluid dynamics and polyfil density differences.
They're half inch holes, not big holes. You need to use the equation area=pi×radius squared.
The math above shows an equal amount of open space. In other words, 6 big holes = 53 little holes.
Maybe I'll redo the math for 1" holes.
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metaphoric
Mr. Bater



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Re: Using math to determine FAE holes. [Re: Dark fatal7]
#26816808 - 07/11/20 08:56 AM (3 years, 7 months ago) |
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Quote:
Dark fatal7 said: The person who wrote up the sos boxes does it no holes. He even said he stacks his. If you must I would stick with a few small holes then many. Try running some with no holes first.
I just ran a bunch of shoeboxes, the ones in my greenhouse without lids did very well. The ones I left the lids on and stacked did very poorly. I wanted to avoid having the same issue with SOSs. Maybe the greater area in an SOS will solve that problem but idk
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Zifozonke
Stranger


Registered: 03/24/19
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Re: Using math to determine FAE holes. [Re: metaphoric]
#26816820 - 07/11/20 09:05 AM (3 years, 7 months ago) |
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Thanks for fixin my cock up Lotkid
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Roger Clemency
Smile


Registered: 03/23/20
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Re: Using math to determine FAE holes. [Re: Zifozonke]
#26816879 - 07/11/20 09:36 AM (3 years, 7 months ago) |
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I personally would do 6 half inch holes in the same configuration as FrankHorrigan shows in his teks for a regular mono, at least I think it was from him. Two holes right above substrate level on each long side, a little in from the edges, and one hole high up on each short side.
I'd leave them open at first and tape or poly if that seems too dry.
If they're really shorter proportionately that might not work but something along those lines.
-------------------- Sour grapes, sweet revenge Heaven starts right where hell ends
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metaphoric
Mr. Bater



Registered: 05/18/15
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👍👍
I'll try that. I really think I need some fae because of how poorly the closed shoeboxes did.
Do you think pointing a fan directly at the stack from 6 feet away would suffice without drilling any holes? The lids are snapped on but they don't have a gasket.
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 BEHOLD 
        
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Roger Clemency
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Re: Using math to determine FAE holes. [Re: metaphoric]
#26816905 - 07/11/20 09:51 AM (3 years, 7 months ago) |
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My first run with SB it was pretty cold in here so I had a space heater going off and on pretty often throughout the day and those did great with the lids snapped shut the whole time.
By the 2nd cycle it had warmed up so the heater came on a lot less frequently and I started seeing signs of low air so I unsnapped and occasionally would unstack them for a little bit and that seemed to help a lot so I think the fan might do it for you without any holes.
-------------------- Sour grapes, sweet revenge Heaven starts right where hell ends
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LotKid
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Re: Using math to determine FAE holes. [Re: metaphoric]
#26818317 - 07/11/20 09:32 PM (3 years, 7 months ago) |
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Quote:
metaphoric said: 👍👍
I'll try that. I really think I need some fae because of how poorly the closed shoeboxes did.
Do you think pointing a fan directly at the stack from 6 feet away would suffice without drilling any holes? The lids are snapped on but they don't have a gasket.
an oscillating fan on low seems like a great place to start.
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