Micro-Robot Engineering & Production Files

# Request for Complete Micro-Robot Engineering Design & Manufacturing Files **Project:** Big Hero 6-Inspired Modular Micro-Robot **Maximum Total Budget:** KRW 500,000 (approximately USD 350–370, depending on exchange rates) Hello, I am looking for an experienced robotics, mechanical, and electronics engineer to design a fully functional miniature modular robot inspired by the microbots featured in the movie *Big Hero 6*. I am not looking for a concept design or visual 3D model only. I need a complete, manufacturable engineering package that can be sent directly to PCB manufacturers and mechanical fabrication companies. My goal is to manufacture **as many fully functional robots as possible within a total budget of KRW 500,000**, including engineering design, components, manufacturing, and charging equipment. ## 1. Robot Design The robot should have: - A small, approximately spherical central body. - Two elongated wing-shaped arms extending from opposite sides. - A compact, lightweight design. - An optimized internal arrangement for the battery, PCB, motors, sensors, and mechanical components. - The smallest practical dimensions without compromising the required functionality. Please recommend the minimum feasible size based on actual component dimensions and mechanical constraints. ## 2. Required Functions **A. Independently Controlled Arms** - Two independently controlled robotic arms. - Adjustable arm angles and positioning. - Two-axis directional movement per arm, if mechanically feasible. - A target of 360-degree rotational capability, subject to mechanical limitations. - Ability to stop and hold the arms at commanded positions. - Independent motor control through software. **B. Forward and Backward Movement** - A compact internal rotating-mass or reaction-wheel-based movement mechanism. - The robot should be capable of moving or rolling forward and backward. - Please evaluate whether the proposed movement mechanism is physically feasible. - If necessary, recommend a more practical movement mechanism while preserving the intended external appearance. **C. Robot-to-Robot Connection and Separation** - Multiple robots must be capable of physically connecting. - The robots should also be capable of separating. - Connection points should be considered at the central body and arm tips. - Support for different connection configurations, including straight-line and T-shaped arrangements. - Electrically controlled docking and release mechanisms are preferred. **D. Relative Position Detection** - Robots should be able to detect or estimate the relative positions of nearby robots. - Distance and orientation estimation for docking. - Appropriate sensors and wireless communication systems. - Please explain the achievable accuracy and limitations. **E. Charging System — Mandatory Specification** The charging method must use **2-pin Pogo Pin spring-contact charging**.

Requirements

- Internal rechargeable Li-Po battery. - Dedicated charging dock with Pogo Pin contacts. - Automatic electrical charging connection when the robot is placed correctly on the dock. - Integrated charging and battery protection circuitry. - Battery status monitoring. - Reverse-polarity protection or mechanically keyed contacts. - No USB-C charging port on the robot itself. The charging dock must also be included in the engineering design package, including PCB, CAD, STEP/STL, Gerber files, and manufacturing documentation. **F. Bluetooth and Computer Connectivity** - Bluetooth communication with a PC. - Wireless control of individual robots. - Independent arm movement control. - Forward and backward movement commands. - Communication with multiple robots. - Real-time transmission of sensor readings and robot status. **G. Programming and Real-Time Control** - Programmable microcontroller. - Firmware source code. - Python-based PC control interface or equivalent. - Real-time motor control. - Live sensor data monitoring. - Battery status and connection monitoring. - Documented communication protocol. - Ability to send commands to individual robots. ## 3. Required Engineering Deliverables **PCB and Electronics** - Complete circuit schematic. - Editable PCB design files. - Gerber and drill files. - Bill of Materials (BOM). - Pick-and-place files. - PCB assembly documentation. - Battery charging and protection circuits. - Motor driver and wireless communication circuitry. **Mechanical Engineering and CAD** - Complete parametric 3D CAD model. - Editable native CAD source files. - STEP and STL files. - Individual mechanical part drawings. - Manufacturing tolerances and dimensions. - Complete assembly and exploded views. - Arm joint mechanisms. - Movement mechanism. - Robot docking and separation mechanism. - Mechanical interference and clearance analysis. **Component Procurement** Please provide a complete component list containing: - Exact manufacturer part numbers. - Supplier purchase links. - Quantity per robot. - Individual and total component costs. - Physical dimensions and relevant specifications. - Current stock availability and expected lead times. - Suitable alternative parts in case of shortages. Please prioritize components that are readily available and not discontinued. **Software** - Complete microcontroller firmware. - PC control software. - Bluetooth communication implementation. - Real-time control and monitoring functionality. - Source code and installation instructions. ## 4. Manufacturing and Engineering Validation All deliverables must be suitable for real-world manufacturing rather than visualization alone. Please evaluate: - PCB manufacturability and assembly. - Internal component placement and clearances. - Motor torque and power requirements. - Battery capacity and estimated operating time. - Joint movement limitations. - Physical feasibility of the rolling mechanism. - Docking mechanism feasibility. - Expected manufacturing cost. - Mechanical and electrical integration. Please clearly distinguish between s