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Cir-Ruler / circle-drawing ruler

Cir-Ruler
Cir-Ruler

People often have to draw a circle, but with the compasses painted, there will be many problems. Many people are frequently stabed, especially in children,when they use compasses. What’s more, the feet of the compasses often shift,which make the circle out of round. Furthermore, the compasses may damage the paper.
This Cir-Ruler can solve all the problems above. When you use Cir-Ruler, one hand fix the cir-Ruler ,while another hand draw the circle or arc.You can draw any accurate arc,line or circle with Cir-Ruler.

University

South China Agricultural University

South China Agricultural University
Guangzhou, China

Yiya Peng, Han Guo.

Design

South China Agricultural University

South China Agricultural University
Guangzhou, China