Robotics Tools
Free online tools for robot builders and engineers: servo-torque, gear-ratio, LiPo-battery, speed/odometry and cobot-safety calculators, a PID-tuning simulator, a quaternion converter and an open robot ID registry.
Robot ID Registry
tools/robot-registry.hint
Quaternion & Rotation Converter
Select an input format, enter values, and all other representations update live.
Servo Torque Calculator
Enter payload mass and lever length to calculate the required servo torque.
Stepper Motor Calculator
Configure stepper motor steps/mm for 3D printers, CNC machines, and robotics firmware.
Gear Ratio Calculator
Calculate gear ratios, RPM and torque for multi-stage gear trains used in robotics, RC vehicles and mechanisms.
LiPo Battery Calculator
Calculate pack voltage, energy, max discharge current and runtime for any LiPo battery configuration.
Robot Speed & Odometry Calculator
Enter wheel diameter and RPM to get linear speed, km/h, mph, and odometry metrics instantly.
Cobot Safety Distance Calculator
Compute the minimum protective separation distance (S) for collaborative robot cells per ISO 13855.
PID Tuning Simulator
Adjust Kp, Ki, Kd to see the step-response curve update in real time.
Line-Follower Track Generator
Design a closed-loop course, preview it on-screen, then print or download a tiled PDF across multiple A4/Letter pages.
URDF Viewer
Visualise robot links, joints and meshes — articulate the kinematic chain live
Forward Kinematics Visualizer
Visualize serial robot arm kinematics interactively using Denavit–Hartenberg parameters.
Serial Monitor
Connect Arduino, ESP32, or any serial device and monitor incoming data live in your browser.
Robot Vacuum Error Codes
Search by error code or keyword — get the cause and fix steps instantly.
