524: Lightweight Engineering for Robot Chassis

Members of Team 524 left to right: Bennett Forbis, Akeeme Jackson, Jorge Miranda, Tobias Ryckis, Dean Talaa, Lihao Wu

We redesigned the internal frame of WaLTER Sr., a robot supporting explosive ordnance disposal operations, to reduce weight while improving reliability, safety, and ease of repair. Excess weight limits mobility, increases stress on internal components, and traps heat, all of which raise the risk of failure during critical missions.

We improved component arrangement for batteries, computers, and wiring to prevent movement during operation while keeping systems accessible for inspection and replacement. Technicians can now service key components without removing large sections of the robot, reducing repair time and the risk of wiring damage or incorrect reassembly.

The new chassis incorporates open sections for improved heat dissipation during extended missions and integrated protective features to shield internals from water, dust, and debris. By removing unnecessary material, our final design reduces overall weight while maintaining structural strength— improving mobility, lowering mechanical stress, and allowing more efficient operation under demanding conditions.

The result is a lighter, cooler, and more maintainable chassis that helps WaLTER Sr. operate reliably in high-risk environments where dependable performance directly supports human safety and mission success.

Bennett Forbis, Akeeme Jackson, Jorge Miranda, Tobias Ryckis, Dean Talaa, Lihao Wu
Christian Hubicki, Ph.D.
Optimal Robotics Lab
Spring