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Kinematic Model

danielbennettAgility edited this page Sep 8, 2017 · 15 revisions

Cassie Kinematic Model

Images/00-cassie.PNG

Robot-forward along the X axis (red). Robot-up along the Z axis (blue). Robot-left along the Y axis (green).

All joints rotate around their local Z axis and obey the right-hand rule for positive rotations.

Toe and Toe Crank are parallel to eachother.

Thigh and tarsus remain 13 degrees from parallel for undeflected springs.

Neutral pose aligns all leg coordinate frames, straightening the leg.

The following pages detail the left leg's links. The right leg has identical orientations, and negates all offsets in the global Y dimension.

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