Line follower with adjustable sensor holder

3D model description 🔧 Adjustable Line Follower Robot Chassis (BO Motor Compatible) This is a fully functional and modular robot chassis designed for line follower and basic robotics projects. The design focuses on flexibility, ease of assembly, and compatibility with commonly available components. 🚀 Features: 🔹 Adjustable IR sensor holder with sliding slot 🔹 Compatible with standard BO motors (100–300 RPM range) 🔹 Universal battery mounting area (zip-tie compatible) 🔹 Dedicated space for motor driver (L293D) and microcontroller 🔹 Modular design for easy assembly and customization 🔹 Lightweight and strong structure 🧩 Components Included: Robot chassis Motor holder (2x) Adjustable sensor holder ⚙️ Hardware Required: M3 screws and nuts BO motors (2x) IR sensors Motor driver (L293D or similar) Microcontroller (Arduino / ESP32) Battery (any type, secured using zip ties) 🛠️ Assembly: Fix motors into holders Attach holders to chassis Mount sensor using slot mechanism Install electronics in dedicated spaces Secure battery using zip ties 📌 Notes: Designed with tolerance for easy fitting Suitable for beginners and students Can be modified further using provided STEP file 💡 Perfect for robotics projects, competitions, and learning purposes. 3D printing settings 🖨️ Recommended 3D Printing Settings Material: PLA (recommended) / PETG Layer Height: 0.2 mm Infill: 20–30% Wall Thickness: 1.2–1.6 mm Print Speed: 40–60 mm/s Supports: Not required (for most parts) Bed Adhesion: Skirt or Brim 🔧 Printing Tips: Print chassis flat on bed Print motor holders upright for better strength Ensure proper bed leveling for slot accuracy Use higher infill (30%) for motor holders if needed ⚠️ Tolerances: Designed with slight clearance for easy assembly If fit is tight, lightly sand the parts 📦 Post Processing: Clean edges if needed Test fit components before final assembly