Motion Monday Orbital Shaker Motion Analysis Eccentric Drive to Orbital Output

KG 2026-03-24

Hello Everyone 👋 , Welcome Back to Motion Monday.
I know its a little late but This one’s been in motion for a while — just took some time completing its orbit before making it here.
This motion study focuses on an Orbital Shaker and the mechanism that generates its characteristic motion.

Unlike simple rotation, the platform follows a circular orbital path while maintaining a constant orientation. This is achieved by converting rotary input into orbital motion using an eccentric (offset) drive.

⚙️ Key observations from the motion analysis:

The platform center traces a fixed-radius circular trajectory
No self-rotation of the platform ensures stable sample positioning
Orbit radius and angular speed directly govern mixing intensity
Velocity remains tangential, with continuous direction change across the cycle

This controlled motion enables uniform mixing while minimizing spillage and instability.

To Play with the motion yourself you can download SOLIDWORKS file from below.

3DPlay Model	Zip Model

Edu Motion Monday