Homemade Paint Shakers

Paint shakers can be used to mix different colors of paint.

Paint shakers can be used to combine two or more colors of paint evenly, to mix thinner into paint and to homogenize paints that have been left standing. Using spare parts you can build a homemade paint shaker.

Larger Paint Shakers

Large paint shakers are good for gallon-sized cans of house paint. You can make such a mixer out of an old air compressor. Remove the piston from the air compressor and replace it with a wooden rod attached to a platform to which the cans are clamped. When the compressor is turned on, the platform moves rapidly up and down, mixing the paint.

Smaller Shakers

You can make smaller paint shakers using an electric motor. A container is secured to an elliptical cam (a special oval-shaped gear or connector) which in turn is attached to the motor's drive shaft. As the motor turns, the elliptical cam moves the container rapidly up and down. The bottle or pint-sized can of paint is placed inside the container and the vibrations from the motor shake the paint to mix it.

Tips on Finding Electric Motors

Many household devices have electric motors that can be removed and re-used in paint shakers. Examples include hair clippers, small fans and some motorized toys. A discarded toy car, for example, could have its wheels removed and an elliptical cam attached to the motor's drive shaft which could then agitate a container.

References

• Popular Science: Old Air Compressor Mixes Paint
• Old River Bill's Towboats: Homemade Tools

Resources

• University of New South Wales: Electric Motors and Generators