The printing scale 3:100,about hull length 180mm. Ordinary 0.4mm nozzle FDM printer, 1.75mmPLA, stl files scale 1: 100, you can freely zoom. In this link: https://drive.google.com/drive/folders/1KF221FVnVBDvGBKIi--oo-53I9JkrJtX?usp=sharing