Designed according to the principle of balanced birds, the 3D‑printed model’s internal infill density can be adjusted to alter the butterfly’s weight distribution, while the angle of the wings can be fine‑tuned to change the butterfly’s pose on the branch. A gentle nudge or light touch is all it takes to set the butterfly in motion, causing it to flutter and dance gracefully along the branch.

Designed based on the principle of balanced birds, the weight distribution of butterflies can be changed by varying the filling density inside the 3D printed model, and the posture of butterflies on tree branches can be altered by adjusting the angle of their wings. Gently move and touch the butterfly, making it dance gracefully on the branch.