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Old 07-25-2007, 01:36 PM   #21
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Quote:
Originally Posted by Hawkie333
HMMMM.....I wonder about that Thermaltake Hardcano 9. That might make a nice controller for a fermentation cabinet with multiple fans and thermal chambers.....think it's possible/practical?
yes sir! I may dig up another one for that project
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Old 07-25-2007, 01:47 PM   #22
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How would you get that controller to kick specific fans on at specific temps? It doesn't seem to have that function; only the ability to alarm when critical temps are reached.....

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Old 07-25-2007, 01:48 PM   #23
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Originally Posted by Hawkie333
How would you get that controller to kick specific fans on at specific temps? It doesn't seem to have that function; only the ability to alarm when critical temps are reached.....

yes, you are correct. I dunno if TT makes one that does that.....but google knows!
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Old 07-25-2007, 02:05 PM   #24
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ok. so i had never heard of a stir plate untill yesterday. after looking at a few different tutorials on how to build one, and the advantages of it for building yeast cell counts in starters, i get it, and want to make one, and it looks easy enough.

HOWEVER, how in the hell do they actually work? it freaking baffles me. i had NO idea that two little magnets could somehow produce a magnetic field with the strength to cyclone liquid sitting on top of them. that's freaking bill nye science **** in action yo!

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Old 07-25-2007, 02:07 PM   #25
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the magnets spin a stir rod that is in the flask, pushing the yeast to the sides of the flask, and creating that wicked cool vortex

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Old 07-25-2007, 02:12 PM   #26
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the magnets spin a stir rod that is in the flask, pushing the yeast to the sides of the flask, and creating that wicked cool vortex

ooooh. duh.

i totally missed the fact that there was something inside the flask. i thought it was just a plain flask, and i could not figure out how it made the liquid stir just by magnets alone.

so how does the stir plate stay affixed to the flask? is it inside it, outside of it glued to the bottom or what?
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Old 07-25-2007, 02:12 PM   #27
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Maybe I'm jacking this thread, maybe I'm not, but that hardcano would make one smooth interface on a cabinet if we could figure out how to respond to temps....a third fan could run an integrated stirplate chamber. There. I didn't jack the thread!

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Old 07-25-2007, 03:00 PM   #28
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so how does the stir plate stay affixed to the flask? is it inside it, outside of it glued to the bottom or what?
The flask is heavy, and it's full of liquid that's heavy as well. Heavy as compared to the weight of the stir bar that's being moved by the magnet. So gravity is the only attachment mechanism.
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Old 07-25-2007, 07:58 PM   #29
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Quote:
Originally Posted by Hawkie333
Maybe I'm jacking this thread, maybe I'm not, but that hardcano would make one smooth interface on a cabinet if we could figure out how to respond to temps....a third fan could run an integrated stirplate chamber. There. I didn't jack the thread!
yes, you are jacking (I think )

But I know I can use my liquid cooled controller to do that, but I'm not spending $150+ to make a ferment closet
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Old 07-27-2007, 07:09 PM   #30
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Just thought I would chime in as the odd guy that successfully uses a very simple stir plate without a voltage reg of any kind. A 6.25VDC 350mA phone charger powering a 120mm 12VDC 350mA computer fan. The key to the design is that the fan is large enough to double as the base, and it also spools up slower so it doesn't throw the bar. 6.25VDC pulls an adequate vortex with a 1 qt. starter and produces adequate movement for a 2 qt. starter, which is what that is in the pic below, in a 1 gallon growler.





Even if you want variable speed but are "electrically retarded" you could do this same design but buy one of those Radioshack universal AC/DC adapters.

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