Client:ichido°
Collaborator:Masahiro Ohgami
Photographer:Akihiro Yoshida
2022.02
nautilus paper-knife
A paper knife with the blade hidden inside the “shell.”
When an envelope is passed through the slit on the side, a blade attached to the inner spiral enters under the flap, and opens the envelope. A 3D printer was used to achieve the complex shape of the exterior morphing into the blade, but because of the limited sharpness of the blade, repeated experiments were performed for the cutter’s right shape, angle, and distance from the slit.
The name of the paper knife “Nautilus” comes from the appearance like a spiral seashell of nautilus or ammonite.
刀片隐藏在“外壳”内的裁纸刀。
当信封通过侧面的狭缝时，附在内螺旋上的刀片进入盖板下方，打开信封。使用3D打印机实现了外部变形为刀片的复杂形状，但由于刀片的锋利度有限，对刀具的正确形状、角度和与狭缝的距离进行了反复实验。
纸刀“鹦鹉螺”的名字来源于鹦鹉螺或菊石的螺旋贝壳的外观。
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