Magnetic Stirrer

On a market is a lot of magnetic stirrer for chemistry and they are quite expensive. The prices are starting around 80 € and higher. By my opinion, they are very overrated and this was a reason that I have built my own cheap one.

I had two ideas how the magnetic stirrer should work:

  1. Completely magnetic stirrer is as electric motor, what means that chemistry bow is inserted into coil, which rotate magnetic field and with-it metal stick in a bowl.
  2. Second idea was, that right under surface is mounted electric motor with strong magnet that rotate magnetic field. The chemistry bowl is on stirrer and the metal stick is rotating with magnetic field.

I choosed second idea because it is easier to do it.

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