This project was developed as my Final Year Project at Politeknik Caltex Riau in 2025. The primary focus was the design and development of an automated rubber tapping machine that replicates high-skill manual techniques to ensure sustainable latex production. The entire mechanical assembly and motion simulation were meticulously engineered using SolidWorks to ensure structural integrity and precise execution.
Traditional tapping relies heavily on skilled labor to perform precise spiral incisions without damaging the tree’s cambium. To solve the increasing labor shortage and human error, this machine utilizes a precise spiral motion mechanism and a dynamic scheduling system to optimize harvesting.
My Specific Contributions
Mechanical Design & Motion Mechanism: I leveraged SolidWorks to design a multi-axis system using a lead screw mechanism for vertical movement and a cylindrical gear system for the spiral trajectory. The CAD models allowed me to simulate the blade's path, ensuring it follows the tree's curvature precisely for trunk diameters between 45 cm to 80 cm.
Electronics & Sensor Integration: I integrated an ESP32 microcontroller as the brain of the system, coordinating four NEMA 17 stepper motors for precise blade positioning. To prevent cambium damage, I implemented a VL53L0X Time-of-Flight (ToF) sensor to maintain a consistent incision depth.
- IoT & Dynamic Scheduling System: I developed a built-in webserver dashboard on the ESP32, allowing users to set custom tapping intervals (e.g., d/2 or d/3 cycles) via a local Wi-Fi connection. A DS3231 RTC module ensures the machine activates automatically at the optimal time (06:00 AM) when latex turgor pressure is at its peak.
Learning Outcomes
Through this project, I experienced the full mechatronic workflow—from advanced CAD modeling in SolidWorks to embedded system programming and industrial automation. This prototype demonstrates how smart technology can bridge the gap between traditional agricultural practices and modern efficiency, protecting the tree’s productive lifespan while ensuring a consistent yield.
