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Old 03-27-2012, 10:11 PM   #1
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Default Why won't my effing stirplate fan spin?

Here's my DIY stirplate. 12V computer fan, pot, 5v phone charger, LED switch. The switch lights up, but the fan doesn't move. WTF? Am I missing something?




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Old 03-27-2012, 10:26 PM   #2
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what material is that top made out of? also hard to tell from the pics but what is the clearance from the top to the top of the fan.

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Old 03-27-2012, 10:28 PM   #3
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Does the fan work when directly connected to the DC?

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Old 03-27-2012, 10:38 PM   #4
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It's the radio shack project box. I haven't even closed the box up yet. The fan doesn't spin even when it's sitting on op of the box.

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Old 03-27-2012, 10:39 PM   #5
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Quote:
Originally Posted by deepcdan99 View Post
Does the fan work when directly connected to the DC?
Good question. I'll check.
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Old 03-27-2012, 10:51 PM   #6
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Quote:
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Does the fan work when directly connected to the DC?
Yup. It works.
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Old 03-27-2012, 10:57 PM   #7
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Could be wiring. Most likely used the wrong posts on the switch and/or speed control. By pass each to get fan working then you know which posts to use. Or you'll find the switch or contoller are bad.

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Old 03-27-2012, 11:02 PM   #8
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Hard to say without it in front of me, sorry.

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Old 03-27-2012, 11:06 PM   #9
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Try wiring it up without the switch. I didn't use a switch and while it would have been nice I don't miss it. I just unplug it. That will make the wiring simpler and also eliminate a faulty switch from the equation.

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Old 03-27-2012, 11:19 PM   #10
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Well, it looks like it was just a bad solder. I suck at soldering. I disconnected everything and re-soldered and it works. Crisis averted. Now to begin work on stirplate #2...

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