A 300×300mm RC-controlled sumobot designed from scratch and fabricated using laser cutting. Built as a complete mechanical and electronics integration project — from CAD to competition-ready hardware.
| Spec | Details |
|---|---|
| Dimensions | 300 × 300 mm |
| Chassis Material | Mild Steel (laser cut) |
| Drive System | DC Gear Motors (dual) |
| Motor Driver | BTS7960 / L298N |
| Controller | ESP32 + RC Receiver |
| CAD Tool | Fusion 360 + AutoCAD (2D layouts) |
| Fabrication | Laser Cutting |
The chassis was designed with a function-first approach — low center of gravity, optimized weight distribution, and mounting points for all electronics integrated directly into the CAD model before fabrication.
Flat patterns were exported from Fusion 360, converted to DXF format, and sent directly for laser cutting. All parts fit together without post-processing — tolerance-matched in CAD before cutting.
- ESP32 — primary controller for drive logic
- RC Receiver — manual control for competition
- DC Gear Motors ×2 — differential drive
- Motor Driver — high-current driver for reliable torque delivery
- Custom wiring — designed to minimize interference and weight
- Designed 3D model in Fusion 360 with all component clearances
- Generated flat patterns and exported as DXF for laser cutting
- Assembled chassis from laser-cut mild steel parts
- Integrated DC gear motors with custom motor mounts
- Wired ESP32 + RC receiver + motor driver
- Tested and tuned drive system
- Competed in RC Sumo competition
- Fusion 360 — 3D modelling and flat pattern generation
- AutoCAD — 2D laser cut layouts
- Arduino IDE / ESP-IDF — ESP32 firmware
- Laser cutting — chassis fabrication
Designed, fabricated, and competed — end to end.