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Engineering · Robotics

Robot Arm Lab

Steer three joints, solve a target position and discover why some points have two solutions—or none.

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First lesson01 · The robot’s coordinate systemSee all 8 lessons →

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The course

3 worlds · 8 lessons

World 1 · Joints to position

FREE
  1. 01The robot’s coordinate system
  2. 02Turn a plane through space

World 2 · Position to joints

PRO
  1. 01Ask for a pointPRO
  2. 02Two elbows, one tool positionPRO
  3. 03A hollow reachable regionPRO
  4. 04Where motion loses a directionPRO

World 3 · The Denavit–Hartenberg chain

PRO
  1. 01Four parameters, one transformPRO
  2. 02Carry a frame through each jointPRO
Read first

Guides for Robot Arm Lab

All guides →
Explainer
Robot Arm LabRobot Arm Kinematics: From Joint Angles to PositionHow a robot arm turns joint angles into a hand position. Forward kinematics with sines and cosines, reach limits, and why targets can have two answers.4 min read