nautilus cutter / nendo

Thanks  nendo  to gooood for sharing. More about them: nendo on gooood .
Appreciation towards  nendo  for providing the following description:

This is a paper cutter that hides the blade in a “shell”.

A paper knife with the blade hidden inside the “shell.”

▼Paper knife appearance, General view © Akihiro Yoshida

When the envelope gets stuck in the slit on the side of the cutter, the blade attached to the inside of the spiral will cut right into the envelope and open it. In order to realize the complex shape of the blade deformed from the shell, the design uses 3D printing technology; at the same time, due to the limited sharpness of the blade, repeated experiments and tests have been carried out on the correct shape, angle and distance of the blade from the slit.

▼ Sketch, Sketch  © nendo

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.

▼Cutting indication, Way of cutting  © Akihiro Yoshida

▼ Detailed view, Detailed view  © Akihiro Yoshida

The name “Nautilus” is derived from the spiral shell that resembles a nautilus or ammonite.

The name of the paper knife “Nautilus” comes from the appearance like a spiral seashell of nautilus or ammonite. 

Client: ichido °
Collaborator: Masahiro Ohgami
Photographer: Akihiro Yoshida