- May 24, 2017
- Reaction score
Here’s mine using the thermal take fan from Amazon. Unfortunately, the throttle is no longer working and I can’t diagnose why. Oh well, time for a new build.
Ok I love that plastic ware. We have them, no more digging for a frecking lid.Nice setup! Mine is a bit less complicated and more seat of the pants. I used a new fan from MicroCenter and a plastic food storage container from Walmart. The fan is wire to a potentiometer from Radio Shack. I used a 12V transformer that I had laying around fitted to a plug from the Shack. I plan on redoing it with new controls to control the speed more accurately. The neodimium magnets are from Michael's and are epoxied to the hub of the fan.
Here is a quick pic of it in action stirring up some Wyeast American Ale II for some cider:
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Where's the duct tape? Looks like it works just fine.Here is my super cheap, basic stir plate. It gets the job done.
1. Get an old computer fanView attachment 581701
Wire it to a variable voltage adapter like this old one I had lying around:
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Get an old hard drive and pry it open to get the magnet: View attachment 581703
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Glue magnet to the center of the fan:
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Put "risers" on the fan corners so that the vessel will be able to sit upon the fan without actually contacting the magnet: View attachment 581706
here is a different angle: View attachment 581707
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Awesome man! I kinda want mine to break so I can build this one
Quick question: would adding a LED fan to this design have any negative consequences on the starter?
My understanding is that LEDs do not produce much ultraviolet light unless designed to do so. They typically drop off in the 450-485nm range.Beer is skunked by ultraviolet light, but it takes a combination of the hops, yeast, and barley all together to make that result. I cannot imagine yeast, by itself, is light sensitive in this regard.
just my $0.02
Thanks for showing a close up of the fan. Thats pretty trick for those of us solder-challenged.Simple build using an old business card file box. Any box would do really. For folks that do not get all the soldering and electronics or don't want to mess with it this USB fan is a great option. Comes with a speed control and it is plug and play using any USB phone charger. Everything that I needed came with the fan with the exception of the box, the USB charger and the magnets which I still need to get. I guess unlike everyone else, I got rid of my old computers from the 90s so I don't have an old hard drive laying around. With tax I have $15 invested I this so far.
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