ak47clown
Well-Known Member
Ok-so I've read just about every thread out there and tried all the recommendations with no avail. I've built myself a stir plate and at best i can get a 1-2" funnel to appear in my 1 liter flask but for the most part, i keep throwing the magnet(s). I have a 1 5/8" stirbar
Here is what i've tried so far:
-1 hard drive magnet
-2 hard drive magnets
-2 1/4" round neodymium magnets
-2 1/2" donut shaped neodymium magnets
-3 different fans (120mm, 60mm, and a low speed 1000rpm that i just purchased today)
-I've varied the distance from the flask to the magnets
-I've put the flask on the plate without the fan on and then flipped it on.
-I've tried just about every magnet location/position/polarity combination i can think of.
My best configuration yet was the 120mm fan (not sure of rpm but slightly higher than my 1k rpm fan) with two hard drive magnets but the problem was, my magnets were killing the fan and it was straining to spin even at full voltage so it would never spin fast enough. If i rotated the magnets 90 degrees, the fan spun much easier but i did not have the same success with my stirbar...
Am i just completely missing something? I can't believe it can be this freaking hard...
Here is what i've tried so far:
-1 hard drive magnet
-2 hard drive magnets
-2 1/4" round neodymium magnets
-2 1/2" donut shaped neodymium magnets
-3 different fans (120mm, 60mm, and a low speed 1000rpm that i just purchased today)
-I've varied the distance from the flask to the magnets
-I've put the flask on the plate without the fan on and then flipped it on.
-I've tried just about every magnet location/position/polarity combination i can think of.
My best configuration yet was the 120mm fan (not sure of rpm but slightly higher than my 1k rpm fan) with two hard drive magnets but the problem was, my magnets were killing the fan and it was straining to spin even at full voltage so it would never spin fast enough. If i rotated the magnets 90 degrees, the fan spun much easier but i did not have the same success with my stirbar...
Am i just completely missing something? I can't believe it can be this freaking hard...