Cozmo's Lift

Cozmo's lift remains perpendicular to the ground no matter how high it's raised.
What mechanism accomplishes this? Model it in SolidWorks and produce a motion study.

Note: to demonstrate that the lift doesn't rotate:

  • Click on plots/reports, select Displacement/Velocity/Acceleration, then select Angular Displacement and Magnitude. Click on the inner face of one of the holes in the lift. Then click on the inner face of one of the holes in the body. You should see a plot with a flat line.

  • Create a second report of the same type, but this time click on the inner face of one of the holes in a lift arm, and an inner face of a hole in the body. You should see a diagonal line.


Dave Touretzky
Last modified: Wed Feb 1 06:00:59 EST 2017