Partnering with a colleague who conceptualized the form, my role was to translate the initial vision into a fully functional, manufacturable prototype. The core interaction borrows from the skeuomorphic action of opening a jar: twisting the device turns it on and adjusts the volume, while twisting it back powers it down.

The Process

• CAD Modeling: I engineered the internal and external geometry using Rhino to ensure all components fit within the compact housing.

• Advanced Fabrication: Utilized Polyjet 3D printing to create flexible, rubber-like button covers and weather-sealed port plugs.

• Surface Finishing: Used flatbed UV printing on the top cap to achieve a production-grade texture and color finish.

• Electronics Engineering: Custom-built the audio circuit using a LiPo battery and two 5W drivers. I modified a Bluetooth amplifier by desoldering and repositioning the potentiometer, allowing the mechanical "twist" of the housing to control the electronics directly.