Code tool

Robot Arm Kinematics Visualizer

Enter two link lengths and joint angles to see a local 2D arm and calculate its endpoint.

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2D two-link forward kinematics only. This does not solve inverse kinematics or simulate physics.

A QUICK WALKTHROUGH

How to use this tool

  1. Enter link lengths and joint angles.
  2. Review the 2D arm drawing.
  3. Read the calculated endpoint coordinates.

Forward kinematics

The endpoint is calculated from two planar links using trigonometric forward kinematics. Values update locally as you type.

Scope

This visualizer is limited to 2D two-link forward kinematics. It does not solve inverse kinematics or simulate physical motion, torque, collision, or controls.

GOOD TO KNOW

Common questions

Does it solve inverse kinematics?

No. Enter joint angles directly; inverse kinematics is outside this tool.

Does it simulate a real arm?

No. It is a geometric 2D visualization only.

Are calculations local?

Yes. Inputs stay in your browser.