old computer fan...
5 posters
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old computer fan...
I'm looking to make a couple stir plates...anyone got an extra left-over computer fan laying around?
Maybe we could work out a trade for an ounce of hops. I have warrior, cascade, centennial and czech saaz...and nugget leaf.
Maybe we could work out a trade for an ounce of hops. I have warrior, cascade, centennial and czech saaz...and nugget leaf.
Whatever- Posts : 94
Points : 5406
Join date : 2009-12-12
Age : 47
Location : United States Of America
Re: old computer fan...
you tell me what you need we can work out a deal i build computers in my spare time
keith- Posts : 10
Points : 5214
Join date : 2010-02-07
Re: old computer fan...
Here is a basic parts list for the diy stir plate build...you can do a web search for it and several sites with walk-throughs come up.
Computer fan
Neodymium magnet
Reclaimed Power pack (6v-12v)
screws
spacers
rheostat/potentiometer (radio shack)
magnetic ptfe laboratory stir-bar (ebay)
Glass flat bottom vessel
wiring shrink wrap/electrical tape
solder or wiring caps
cigar box/gladware container
As far as fans go, every diy site I've seen online uses 12 volt 3.5" fans (80mm), but I don't see why a slightly smaller (or larger) fan wouldn't work, but I won't know for sure until I try. Two, three or four wire fans should work. Graphics card fans will probably not be strong enough to spin the extra weight/resistance.
Suitable fans have the spinning centers exposed on one side for the magnets to be mounted on. Older fans with the removable metal guards are preferable, because I think can the metal guards can be incorporated into the design so as to eliminate the need for a cigar box entirely.
We will need dead hard drives for the magnets.
I think old cell phone power packs will work, so long as they are at least 5 or 6 volts, but no more than 12v of course.
The rheostats/potentiometers can be had at radio shack, but there are computer fan specific speed controllers on eBay for less than $4 shipped. I will probably try buying one from ebay just for simplicity's sake. A fan with a plug may plug right in, thus minimizing wiring.
The stir bars are about $5 on ebay, more or less. Unless someone in our club has a "supply" of them. wink wink.
You may be able to buy a real laboratory stir-plate on ebay for $20-30 plus shipping.
I prefer to try and make one for less, and use the savings to pay for grain, hops, etc.
And I like the challenge of trying to do more with less.
In fact, I sometimes feel that because I have become so proficient at doing more with less, that I can do almost anything with practically nothing. Besides, I have been bored ever since I mastered the art of doing nothing with everything.
-Ben
Computer fan
Neodymium magnet
Reclaimed Power pack (6v-12v)
screws
spacers
rheostat/potentiometer (radio shack)
magnetic ptfe laboratory stir-bar (ebay)
Glass flat bottom vessel
wiring shrink wrap/electrical tape
solder or wiring caps
cigar box/gladware container
As far as fans go, every diy site I've seen online uses 12 volt 3.5" fans (80mm), but I don't see why a slightly smaller (or larger) fan wouldn't work, but I won't know for sure until I try. Two, three or four wire fans should work. Graphics card fans will probably not be strong enough to spin the extra weight/resistance.
Suitable fans have the spinning centers exposed on one side for the magnets to be mounted on. Older fans with the removable metal guards are preferable, because I think can the metal guards can be incorporated into the design so as to eliminate the need for a cigar box entirely.
We will need dead hard drives for the magnets.
I think old cell phone power packs will work, so long as they are at least 5 or 6 volts, but no more than 12v of course.
The rheostats/potentiometers can be had at radio shack, but there are computer fan specific speed controllers on eBay for less than $4 shipped. I will probably try buying one from ebay just for simplicity's sake. A fan with a plug may plug right in, thus minimizing wiring.
The stir bars are about $5 on ebay, more or less. Unless someone in our club has a "supply" of them. wink wink.
You may be able to buy a real laboratory stir-plate on ebay for $20-30 plus shipping.
I prefer to try and make one for less, and use the savings to pay for grain, hops, etc.
And I like the challenge of trying to do more with less.
In fact, I sometimes feel that because I have become so proficient at doing more with less, that I can do almost anything with practically nothing. Besides, I have been bored ever since I mastered the art of doing nothing with everything.
-Ben
Whatever- Posts : 94
Points : 5406
Join date : 2009-12-12
Age : 47
Location : United States Of America
Re: old computer fan...
you going to be at the march meeting ill bring ya a 80mm fan
keith- Posts : 10
Points : 5214
Join date : 2010-02-07
of course...unless life rears its head
I'll be there. I'm usually at the table in the Southwest corner of the room.
Whatever- Posts : 94
Points : 5406
Join date : 2009-12-12
Age : 47
Location : United States Of America
Re: old computer fan...
Are we talking about magnetism, if so tell me how fast you want your yeast to churn. Ben G.
bpear- Posts : 39
Points : 5281
Join date : 2010-01-10
Age : 60
Location : Kouts, Indiana
stir bar
Anyone know a good local source for stir bars? I'm putting one together soon and don't want to order off amazon or drive the hour out to American Scientific/Surplus if i can get it round these parts.
Re: old computer fan...
I bought a pack of 5 one inch oval shaped stir bars off ebay. If you're interested I'll sell you one for what it cost me...$5.
I bought multiples with the intention of building a few plates and selling them on ebay...if you must know.
Then I could buy me a $5 foot long.
I bought multiples with the intention of building a few plates and selling them on ebay...if you must know.
Then I could buy me a $5 foot long.
Whatever- Posts : 94
Points : 5406
Join date : 2009-12-12
Age : 47
Location : United States Of America
Re: old computer fan...
Guys, I made one and I'll bring it to the next meeting for "Show and Tell"
I bought my stir bars on Ebay real cheap!!!
I bought my stir bars on Ebay real cheap!!!
finess- Posts : 18
Points : 5265
Join date : 2010-01-05
Location : Munster, IN
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