Justin Michaud
HOSAS
Mechanical Design
The force-feedback HOSAS system is built around a custom gimbal designed to deliver smooth motion while transmitting significant torque back to the user. BLDC motors drive the mechanism through belt reductions, allowing the system to multiply motor torque while keeping backlash low and operation quiet. This architecture enables the sticks to generate realistic resistance and dynamic feedback while maintaining a compact footprint suitable for a desktop control setup.
Structural Design
A major focus of the mechanical design is rigidity and precision. The gimbal structure uses CF Nylon load-bearing components and carefully aligned bearings to minimize flex and maintain a consistent feel throughout the full range of motion. The layout is also intentionally modular, allowing different grips, sensors, or gearing configurations to be swapped as the design evolves, supporting iterative development and experimentation with different force-feedback profiles.
Electronics and Control
The electronics are planned to support high-bandwidth force-feedback control using dedicated motor drivers and microcontrollers capable of running real-time control loops. High-resolution encoders will be used to precisely track stick position, enabling firmware to generate dynamic force responses based on simulated flight inputs. The control architecture is also being designed with modularity in mind so additional peripherals—such as throttles, pedals, or expanded sensor systems—can be integrated into the broader HOSAS ecosystem in future revisions.
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