Form Design: The design faithfully replicates the traditional body shape of a D‑key flute, featuring a multi‑segment, modular construction. Each segment is pre‑drilled with precisely positioned holes—such as tone holes and blow holes—aligned to meet the tuning specifications of a D‑key instrument.
- Structural Design: The segments are joined via a snap‑fit mechanism, incorporating male‑female connectors at the interfaces. Once assembled, the segments form a complete flute body while balancing printability with the instrument’s structural integrity.

- As a 3D‑printed replica of a D‑key flute, this model is ideal for instrumental practice and folk music performances;
- It’s also well suited for DIY crafting projects among folk music enthusiasts, or as an elegant display piece that showcases the rich cultural heritage of Chinese folk music.

III. Printing and Assembly Instructions

1. Printing Requirements:
- Print each segment separately, orienting the flute body vertically along its longitudinal axis and enabling local support structures in areas where holes are located (e.g., tone holes);
- We recommend using high‑density filaments such as ABS with a fill density of at least 50% to ensure both structural strength and consistent intonation.
2. Assembly Steps:
- After printing, carefully remove any support material and excess burrs from the intersegment joints;
- Align the segments according to their pre‑designed male‑female connectors and snap them together one by one, ensuring a snug, secure fit with no looseness—light application of adhesive can further reinforce the connections.