The Design Process

The project began with extensive research and reference gathering to ensure an accurate recreation of the Vector Piranha Gun. Using fusion 360, we meticulously 3D modeled the prop, paying close attention to scale, proportions, and intricate details. The entire process was completed within a tight two-week timeline, meeting the client’s deadline without compromising quality.

Mechanical and Electronics

The piranha head featured nine individual eyes, each controlled by its own SG90 micro servo motor. To create a lifelike effect, all eyes were programmed to blink randomly, adding dynamic functionality to the prop.

The primary challenge was fitting all servos, wiring, and the ESP32 microcontroller into the confined space of the piranha head. To address this, we designed and fabricated a custom “eye tree” structure. This intricate framework securely housed all components, ensuring precise alignment and stability while maximizing the use of limited space.

Assembly and Finishing

The 3D-printed components were carefully assembled with the internal mechanical and electronic systems, ensuring precise alignment and functionality. The finishing process involved sanding and filling the surfaces to achieve a smooth base, followed by applying primer. Multiple layers of acrylic gloss white paint were added to replicate the look, with a final clear coat applied for gloss and protection.