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Old 08-03-2012, 03:43 AM   #1
chuckjaxfl
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Feb 2010
Jacksonville, FL
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I've been trying to come up with SOME advantage this idea would have over a magnet glued to a fan. I haven't been successful.

That said, I'm going to try it anyways. Here's a rough prototype.


 
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Old 08-03-2012, 03:45 AM   #2
lewdog50
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Aug 2011
rochester, new york
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Interesting

 
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Old 08-03-2012, 03:57 AM   #3
theonetrueruss
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Woodstock, GA
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neet
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Old 08-03-2012, 04:01 AM   #4
passedpawn
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cool.
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Old 08-03-2012, 04:03 AM   #5
chuckjaxfl
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Feb 2010
Jacksonville, FL
Posts: 327
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Thanks!

The electromagnets are these.

They are driven with an SN754410 h-bridge, which is controlled by an ATtiny84. It's not very stable, the magnet will only spin at a specific RPM.
But, hey, this is just a start. I'm receptive to any ideas anyone has to improve it.

 
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Old 08-04-2012, 04:03 AM   #6
TimpanogosSlim
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Mar 2012
Orem, UT
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For growing yeast starters? Nil.

But solid state stir plates are preferred in potentially explosive and corrosive environments.

Here's mine, next to my DIY stir plate:


 
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