Electrophoresis
DIY Electrophoresis box.
Electrophoresis boxes are easy to make but pretty expensive to buy. They are nothing but electrodes in a box. I also created a separated box for pouring the gel with a comb to make the wells in a gel.
For proper measurements I just roughly copied the size of commercial units.
Diagram: schematics of an electrophoresis box.
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Image: design in Fusion360 ready to be printed out.
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Image: printed result.
First test run!