https://youtu.be/Tfv6wo20pNc

Full tutorial: https://learn.adafruit.com/crickit-lab-shaker/

Build a lab shaker to agitate parts with PVA supports! This DIY shaker uses an Adafruit Crickit, Circuit Playground Express and DC motor. The speed is adjustable with a potentiometer. MicroUSB port is accessible for programming. The unit is powered by a power supply for constant usage. With 3D printed parts, electronics and hardware, you can create a lab shaker agitator.

3D printing with water soluble material is a great way to produce complex geometry with overhangs. Parts with supports using PVA filament can take many hours to fully dissolve in water. Using a orbital shaker can help speed up the process and reduce the clean up from post processing.