This paper explores the methodology used to develop the miniature working concept (prototype) of a Uni-wheel Electric bike (E-bike) convertible to an E-bike where the Uni-wheel works on an inverse pendulum mechanism and the prototype model is manufactured using Poly Lactic Acid (PLA) filament-based additive manufacturing using a Fused Deposition Modelling based 3D printer. Uni-bike, which can be converted into a normal bike as per the convenience of the rider. Because of the growing awareness of pollution and the energy scarcity situation, vehicles and motorbikes are no longer the ideal modes of mobility. As the cost of petroleum products rises, a more cost-effective and efficient form of transportation is required. This miniature prototype might be utilized to create a human-ridable model in the future.