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Contingency Robot Arm - Project Manager
My Role:
Led a 15-member mechanical team in designing a 6-axis robotic arm the goal for this arm as to be lightweight, robust, and easy to manufacture. I oversaw system-level design decision, CAD architecture, and team coordination. I managed the file structure and subassembly layout, and I resolved cross-platform integration between Onshape and SolidWorks.
Contingency Robot Arm - Onshape/Solidworks
Contingency Robot Arm(Open Panel)
My work:
Personally engineered the forearm, differential wrist (pitch + roll), robotic hand, and electrical box. Designed a compact hypoid bevel gear using feaures Scripts in Onshape, validated with MATLAB and FEA. I also manufactured the components for these systems using 3 axis CNC, manual milling, and 3D printing. Also worked on improving other mechanisms of the rover such as the suspension’s differential pivot.
Contingency - Forearm, Electrical Box, Differential Wrist, Hand
Hand
Hand
Interfaces with the differential wrist via a hypoid bevel gear and spins on a dead axle T-shaft. Features a slip ring for continuous rotation and a servo-driven, modular finger design rated for a 5 kg load. Reinforced with metal plates for structural integrity and easy finger replacement.
Hand - Onshape/Solidworks
Differential Wrist:
Differential Wrist:
Compact wrist providing pitch and roll motion via dual CubeMars motors and custom hypoid bevel gears rated for 30 Nm torque. Torque is transferred using HTD belts around a static 0.5" T-shaft. Designed to support a 5 kg payload and seamlessly interfaces with the hand and forearm.
Differntial Wrist- Onshape/Solidworks
Box/Forearm
Box/Forearm
Encases electronics including the motor controller (O-Drive), fuse boards, and a buck converter (24 V to 12 V) in a serviceable enclosure. Features panel covers and internal mounts for easy access, wiring management, and protection. Attached at end of the forearm, covering any exposed holes near electronics
Electrical Box/Forearm- Onshape/Solidworks
Contingency Robot Chassis - Differential Pivot
My Role:
Engineered a custom 3D-printed interface connecting the chassis to the differential pivot for a rover's suspension system. The component aligns the differential bar, enabling smooth articulation across uneven terrain. Designed in SolidWorks and validated with FEA, achieving a factor of safety of 10 under expected load conditions.
Differential Bar Suspension(Rocker - Bogie)
Differntial Bar- Onshape/Solidworks
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