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DIY Magnetic stirrer
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A cheap, self made magnetic stirrer for every budget oriented home laboratory, made from a 120 mm PC fan.
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Model information
- Source
- Printables
- Category
- Chemistry & Biology
- License
- GNU General Public License v3.0
Magnetic stirrers can cost more than 100 bucks.
This one less than 5!
Here's what you need:
- 120 mm PC case fan (4 free when already used, e.g. from your old PC)
- Voltage modifier (see picture, https://www.ebay.de/itm/266028052543)
- 2 Neodymium magnets (I used cubic 5 mm ones)
- 4 screws
- Power supply or battery for energy
Assembly:
- Print all three parts;
- Cut the blades out of the fan;
- Glue the magnets into the disk and then glue the disk onto the rotating part of the fan;
- Drill a hole into the case for the voltage modifier;
- Slide the fan into the case and screw it tightly;
- Slide the backplate onto it. Remember to place the cables into the slit.
Source file for forks: https://cad.onshape.com/documents/fdca9739386a0a4a49b27445/w/d09989e37bf36e079bfc84f0/e/9ca8bfc71fa8cbaaf829c613