GrabCAD 模型信息
Semi-Autonomous Tracking Vehicle Chassis & Assembly · 模型 74016
This project is the complete CAD assembly for a large-scale semi-autonomous vehicle I designed and fabricated, which was funded by a $500 Brown Design Workshop Maker Grant. Objective & Context: I led the end-to-end mechanical design, fabrication, and systems integration for this robotic platform. The primary goal was to create a robust chassis capable of housing a complex embedded control system for real-time object tracking. Engineering & Design Decisions: 1. Full System Assembly: This model is a complete assembly of over 30 unique mechanical and electronic components, including the custom chassis, multi-part wheels, a servo-based camera gimbal, motors, and all electronics. 2. Design for Systems Integration: The unibody chassis was designed in Fusion 360 with specific recessed bays and mounting points to securely house the control system (Raspberry Pi, Arduino, camera, and four motor drivers), protecting them while allowing for user access. 3. Problem-Solving (Design for Assembly): A key challenge was the interference between the motor driver heatsinks and the chassis, which prevented standard mounting. I designed and validated a custom 3D-printed bracket that provides a secure, top-down mount while keeping the heatsink fins clear for cooling, ensuring thermal performance was not compromised. 4. Design for Manufacturability (DFM): All custom components, including the chassis and brackets, were designed for fabrication using 3D printing and CNC machining, incorporating features like fillets for stress reduction and panel-mounts for switches. 5. Prototyping & Validation: I fabricated a large-scale working prototype (~1m x 1m x 2m) and successfully integrated the control system, which ran an initial Python (OpenCV) prototype for real-time object tracking.
- 格式
- STEP / IGES、Rendering
- 分类
- Automotive、Just for fun、Machine design
- 标签
- prototype、gimbal、assembly、autonomous、car、chassis
- 数据更新
- 2026-10-08T01:01:57Z
