Weston Middle School
Technology/EngineeringCourse Materials
DEGREES OF FREEDOM
Degrees of freedom (DoF) refers to ability of an object to move up-and-down, left-and-right, and forward-and-backward.
Up-and-down movement is called pitch.
Left-and-right movement is called yaw.
And a rotation around as if you were using a screwdriver is called roll.
A human shoulder has three degrees of freedom (3DoF); pitch, yaw, and roll. A human elbow can only move up and down, so that has only 1DoF. A human wrist can bend up and down, side to side, and it can also twist a little, so that has 3DoF. In total, the human arm has seven degrees of freedom (7DoF): three in the shoulder, one in the elbow, and three in the wrist.
Each Lego Motor/rotation sensor represents 1 degree of freedom.
How many degrees of freedom does this Luxo Light have ( in Pixar's first animated film)?
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