Of course we need two magnetic stirrers for our nice Pyrex Erlenmeyer flasks to make starters in. And why buy them if you can build them for more money š
Using a 120 mm computer fan, some 3D-CAD/printing, a voltage regulator and a suitable casing the following was produced.
![](https://gammabrewery.com/wp-content/uploads/2023/03/56BA0D74-4B3C-44D6-9D0F-2EDAF8D1610F-1024x768.jpg)
![](https://gammabrewery.com/wp-content/uploads/2023/03/Skarmavbild-2023-03-21-kl.-20.21.48-1024x862.png)
![](https://gammabrewery.com/wp-content/uploads/2023/03/77C35B29-6A05-4449-A6BE-9EDE8D564AA5-768x1024.jpg)
And they work great!