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Rolling saw / saw

Rolling saw

Start sowing.
At first, it is easy to saw; however, when it’s been sawed deeply, it gets harder to keep going. When the blade has cut till certain part, due to the pressure between the crevices, blade is squeezed, and it gets harder to keep sawing.

Usually sawing is done while pulling the blade that’s been pushed.When pushing it forward, the hinge is pulled back and opens the crack (The hinge gets a little bigger on the sides at this point) and when pulling, because of the open crevice, there’s no jam, providing smooth cut.

University

Hongik university

Hongik university
Chungcheongnam-do, South Korea

Design

Hongik university

Hongik university
Chungcheongnam-do, South Korea

Gyei yong Lee