
Inverse Kinematics for a 2-Joint Robot Arm Using Geometry
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We revisit the simple 2-link planar robot and determine the inverse kinematic function using simple geometry and trigonometry.
lesson
We revisit the simple 2-link planar robot and determine the inverse kinematic function using simple geometry and trigonometry.
lesson
The pose of the working part of a robot’s tool depends on additional transforms. Where is the end of the tool with respect to the end of the arm, and where is the base of the robot with respect to the world?
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We consider a robot with four joints that moves its end-effector in 3D space.
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A more efficient trajectory has a trapezoidal velocity profile.
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A problem arises when using three-angle sequences and particular values of the middle angle leads to a condition called a singularity. This mathematical phenomena is related to a problem that occurs in the physical world with mechanical gimbal systems. Note that in Robotics, Vision & Control (second edition) and RTB10.x the default definition of roll-pitch-yaw […]