Robotics

A 3D Printing Hexacopter: Design and Demonstration

3D printing using robots has garnered significant interest in manufacturing and construction in recent years. A robot's versatility paired with the design freedom of 3D printing offers promising opportunities for how parts and structures are built in …

Motion Capture Space with Submillimeter Position Sensing

35 × 35 × 20 feet of submillimeter-accurate airspace — built from the ground up. We designed, constructed, and commissioned the Texas Robotics motion capture facility at UT Austin (Anna Hiss Gymnasium) to serve as the backbone for robotics research.

Graph Temporal Logic Inference for Classification and Identification

Inferring spatial-temporal properties from data is important for many complex systems, such as additive manufacturing systems, swarm robotic systems and biological networks. Such systems can often be modeled as a labeled graph where labels on the …

First 3D Printing Attempt with a Drone

Unstable flight, premature extrusion, material that refuses to adhere — this is what aerial 3D printing looks like at the start. We document the first prototype test of a multi-year aerial additive manufacturing research program, including what went …

Robot Control and Mechanism Design Projects

A portfolio of robot mechanism and control projects from graduate studies at UT Austin: a centralized-actuation 3-finger gripper, PD and inverse kinematics control of planar and 6-DOF arms, and a rehabilitation table prototype.

6DOF Robot Arm Optimization for Harsh Manufacturing Environments

ABB robots in Mercedes-Benz's OP-150 HD cleaning system were failing — the culprit: direct exposure to 600-bar water jets at 60–70°C. We applied Six Sigma root-cause analysis and redesigned the robotic cage with protective coverings, significantly …

Robot Arm Maintenance for Ford Foundry

Molten aluminum at 820°C, abrasive casting debris, relentless thermal cycling — ABB robot arms at Ford's Cologne-Niehl foundry were being pushed to their limits. I supported the development of preventive maintenance schedules, enhanced thermal …