Magnetic stirrer

thingiverse

Magnetic stirrer with fan, individually or in combination. I didn't print a hole on the left side to make it more versatile. If you want several next to each other, you'll need to drill a hole with a screwdriver to connect them securely. I glued everything together using 2K glue. I installed a voltage regulator to control the speed of my magnetic stirrer. One option is the "Starall 3A 6 28V DC Motor Speed Controller PWM" from Amazon, which should work great for most applications. For the fan, I recommend using the Nanoxia 200300281 Deep Silence 60 - 2000 Fan, which measures 60mm x 60mm x 25mm. You can also consider using a smaller 40mm fan if you prefer. The key is to position the printed magnetic holder on the fan so it's securely attached and away from the lid. I used two neodymium magnets, each measuring 10x10x4mm, glued with 2K glue inside the magnetic holder. Make sure to pay attention to their polarity - once plus up and minus up is essential for proper function. To complete your setup, you'll need a 12V power supply and some stir bars.