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Old 01-15-2012, 02:34 PM   #951
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If the fan runs, I'll tear mine apart to show you the guts. I was as frustrated as you at one point then realized I had the switch in a different position that the OP before I figured it out 5 hours later

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Old 01-15-2012, 05:46 PM   #952
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I got it running, but I cant get the speed to change using the pot. Instead I bought an adapter with variable setting of voltage. This changes it for me

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Old 01-15-2012, 11:42 PM   #953
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NICE! Good job

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Being Dealt (kegged): Carbed Crystal light lemonade for the boys, Delta Bravo IPA, Applewinder
Primary: Climbing stout
Primary #2: ESB
Big Blind: Pucker Bitter
Small Blind:
Tasty Remembrances: White 'N Nerdy, Dynamite Red (Hop bursted), APA, The Bonaduce (irish Red), runners stout, ridgeback brown,

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Old 01-15-2012, 11:51 PM   #954
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Thanks! I feel capable haha

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Old 01-16-2012, 11:20 AM   #955
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Originally Posted by 56Firedome
Since I don’t have the 2L Flask yet I tried out a Flower Vase.

My next question has to do with the thickness of the Starter & the Neck of the Flask. So, how thick is the Starter after 2 days of stirring?

The flasks I’m looking at have a fairly small Neck.
If you have an old 1.75L Schmirnoff <sp?> vodka bottle they work great if your magnet is strong enough.

Starters are thick enough to make it more difficult to maintain the strong vortex but no thicker than a glass of milk.
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Old 01-17-2012, 05:07 PM   #956
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I actually used a 12v power and ran it through water but could not get the vortex off the bottom so I replaced it with a 9v source. When I went to a starter I had to change back to a 12v because of the thickness. I think milk would be a better choice for the test.

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Being Dealt (kegged): Carbed Crystal light lemonade for the boys, Delta Bravo IPA, Applewinder
Primary: Climbing stout
Primary #2: ESB
Big Blind: Pucker Bitter
Small Blind:
Tasty Remembrances: White 'N Nerdy, Dynamite Red (Hop bursted), APA, The Bonaduce (irish Red), runners stout, ridgeback brown,

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Old 01-17-2012, 05:16 PM   #957
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Would you guys recommend using a 2 inch stir bar in the 2K mL flask?

By the way I got the wiring figured out. The pot. now works correctly. My problem was I had the power directly to the switch. I took the power source to the pot and used an extra wire to connect the middle prong of the pot to the right prong of the switch which also had the red wire from the fan.

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Old 01-17-2012, 06:04 PM   #958
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I have used a 1" and got plenty of spin so it is dealers preference

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Old 01-18-2012, 04:12 AM   #959
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+1 1"

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Being Dealt (kegged): Carbed Crystal light lemonade for the boys, Delta Bravo IPA, Applewinder
Primary: Climbing stout
Primary #2: ESB
Big Blind: Pucker Bitter
Small Blind:
Tasty Remembrances: White 'N Nerdy, Dynamite Red (Hop bursted), APA, The Bonaduce (irish Red), runners stout, ridgeback brown,

from my big ass computer sitting on my floor
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Old 01-20-2012, 07:43 AM   #960
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I've been toying with my DIY stir plate for the past few days.

Here's some parts that I found or picked up at Radio Shack:

25ohm rheostat
(2) 80mm pc cooling fans
a couple DC switches. 1 is illuminated and 1 is not
3 magnets from old hard drives
a couple 1" stir bars
(1) 2" stir bar
2L Erlenmeyer flask
project box
(1) AC -> DC converter 6v

I can get the fan to spin without the magnet glued to it but once I glue the magnet the fan won't spin when I turn it on. However if I give it a little nudge after I turn it on it will spin. How can I resolve this?

On one of the fans I cut all the fins off to reduce mass. This helped a bit. Now the 'fan' will spin when I turn it on. It will also spin when I turn it on (with hd magnet glued to it). However, it won't spin when I turn it on and have the flask with spin bar in position. Sometimes I can turn it on and THEN place the flask on in. Takes about 20 tries to get the bar to spin though.

Has anybody else had these issues? What did you do to resolve this?

I have some ideas but they are just wild guesses.

Stronger fan with more torque?
Use a 9v converter?
play with spacing (add some rubber stoppers to the top of my stir plate)?

While it's fun trying to get this to work, it is getting very annoying.

I'm not an electrical engineer by any means, so if anybody has advice, please use language that would be understood by a 4 year old! Thanks.

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