Has anyone heard of stirplates or these USB fans catching on fire from prolonged use?
Nabbed your idea. Built a prototype in a cardboard Bijoux Terner tie box.
ok so i think i did everything right but i cant seem to get my stirbar to spin... it kind of nervously hops around the bottom of my flask..
fc36 said:I gotta rebuild my stirplate cuz it keeps throwing stirbars. Looks like I found my next fan.
michgan241 said:ok so i think i did everything right but i cant seem to get my stirbar to spin... it kind of nervously hops around the bottom of my flask..
I finally made mine after having it sit for 2 months. It works on a medium setting, but when it is low it throws the stir bar. I get a vortex going and it seems to work fine at that point. At a high setting it throws the magnets, so maybe I'll glue them on. I just have the basic fan at this point, I'll have to build some kind of enclosure or at least a plexiglas top that's bigger than the bottom of the flask.
So how fast does this need to go anyway? I would think just enough to keep things moving
Just ordered the 12.
Also, I thought the purpose was not to keep the yeast in suspension, but rather to oxygenate the wort?
I love how Amazon suggests a stir bar in the 'Frequently Bought Together' section. Must be a popular build.
nickmv said:Last fall I saw this thread and instantly decided it was time to put a stir plate together, finally.
I used the same fan, and took advantage of scrap pine and some plywood, a few nails, screws, a HD magnet, hot glue, an HTC phone charger, and voila, lookee here.
So is the flask necessary/worth $15 for a 1L? Or can I use a mason jar?
mjap52 said:It depends. If you can get your stir bar to balance and not get thrown off of the center, then you don't need it. I personally think it's worth it. Also, spring for the 2 liter if you do, less steps if you ever need to make a lager.
Thanks, so assuming the same fan this thread identifies and a 2L flask how big of a stir bar?
Sorry if I repeat a question but why does my stir bar keep getting tossed off center? At lower speeds I can get it to stay but with no whirlpool action. I can see at low speeds its spinning just a little off center almost doing tiny circles while also spinning. My assumption it the the magnet is a hair off center but its a HD magnet so it's a funky shape. Any ideas?
(2L flask, 2 laptop hard drive magnets stacked, 1"stir bar, thread specified fan)
fc36 said:just sit there with your stirplate cover off and spin your fan and adjust the magnets over and over until you find a sweetspot where you see very little wiggle or wobble.
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