Today I did CS223's ridiculously cheap stir plate build. Took a total of 25 mins to build. Followed his plans mostly to a T. Except for the washer and the super glue. The Neodymium rare earth magnets were strong enough to not require super glue, although I may secure them later. Note the 6-32 nuts spacing the top screen away from the fan, spacing is important, too close will pull the fan off its mount and it won't spin. The Thermatake fan was $14.12 off Amazon, and $5.00 for the magnets and 6-32 pack of screws. A great working stirplate for under $20. Really easy build went together so smooth, I'm excited to take on yeast ranching now!
