October 2010
Beginner
176 pages
8h 7m
English

Don’t have a 3D printer to make plastic parts? Use moo juice instead. Ordinary cow’s milk contains a protein called casein. When separated from milk by using an acid such as vinegar, casein becomes a moldable plastic material that can be used to create everything from glue to fabric to billiard balls. Make your own custom parts for projects!

Pour 1 cup of milk into the saucepan and warm it to a simmer, not a boil, on the stove.
Next, add 4 teaspoons of vinegar to the milk and ...
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