Nathan Wolf-Sonkin

Sarcos Sapien 6M Digital Twin

Tools & Technologies
Gazebo ROS2 Python

During my Summer 2024 internship at JLG Industries, I developed a digital twin of the Sarcos Sapien 6M robotic manipulator to support simulation, algorithm development, and real-world deployment. Using access to the system’s CAD models, I derived the kinematic frame relationships between the manipulator’s rigid bodies and constructed the robot model using Denavit–Hartenberg conventions.

The project had two primary objectives: first, to create a high-fidelity simulation environment for testing robotic algorithms, and second, to validate those algorithms on the physical robot. The initial application focused on autonomous tool-changing operations. Over the course of a 10-week internship, I designed and implemented both analytical and numerical inverse kinematics controllers, integrating them into the simulation and deployment pipeline.

The developed algorithms were successfully tested on a physical Sarcos Sapien 6M platform, where the robot completed tool-change operations that had first been validated in simulation. This work represented an early technical milestone in the broader robotics initiative at JLG Industries. My work on this project was an early step towards the Oshkosh JLG Boom Lift with Robotic End Effector project, which later received a 2026 CES Innovation Award.