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Ruler-Compass / ruler

Ruler-Compass
Ruler-Compass

This is a ruler which can draw a circle, it is more convenient to draw a circle of a certain size, more portable, and more secure. It redefined the compasses.When you want to draw a circle, just move the slider to the location of the specific size, and then with one hand pinned the end of the ruler, which is the center of the circle, the other hand held the pen to draw a circle.

University

Huaqiao University

Huaqiao University
Xiamen, China

Design

Huaqiao University

Huaqiao University
Xiamen, China

Ma Jingwen Chong Shuqing

Design

Huaqiao University

Huaqiao University
Xiamen, China

Ma Jingwen Chong Shuqing