Our Subsystems

We design and build a multi-degree-of-freedom robotic arm capable of lifting and dropping objects up to 5 kg, turning knobs, pushing buttons, opening drawers, and performing other precise movement. Our work focuses on developing robust mechanisms, selecting the right materials, and improving control precision and system reliability.

The rover uses a fully passive rocker-bogie suspension system — a tried and tested design for rough terrains. A novel 4-bar differential mechanism further improves chassis stability, keeping the rover level while traversing uneven ground. The suspension is built to climb over rocks up to 0.5 meters high and handle slopes steeper than 50 degrees. We are also developing an alternative 4-wheel suspension system using differential steering as a backup.

The rover collects soil and rock samples from various locations using a robotic arm with a drill-based method for depths up to 10 cm and a double-scoop mechanism for surface scraping. Samples are distributed to maintain contamination control and functionality standards, while advanced machinery on board enables bioassays to detect signs of life.

The chassis, made from lightweight hollow aluminium pipes, is robust enough to support the robotic arm, bioassembly, and all electrical components. It is designed to prevent stress accumulation, while the modular structure allows for easy removal and replacement of components.

The wheels, designed for Martian-like terrains, are 3d-printed to offer excellent traction while reducing impact transfer to the suspension system. The compact wheel hub efficiently supports load transfer, the motor, and its shaft.