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Multifunctional rule / Multifunctional ruler

Multifunctional rule
Multifunctional rule

It takes advantages of some mathematical principles like "two points established a straight line" and so on, improving the limited length of the straight edge and increasing the function of surveying and mapping angle as well. We only need to put our hand on the two circular parts of intermediate track ,and slide the straight ruler, which can prolong the use of wireless feet, and keep the surveying and mapping precision. when you are holding one of the circular parts and rotary straight edge, you can get any degree you need in surveying and mapping angle through angle mark of the circular parts .

University

South China Agricultural University

South China Agricultural University
College Of Arts
guangzhou, China

Design

South China Agricultural University

South China Agricultural University
College Of Arts
guangzhou, China

Xin Zhang/ Qiaoqing Yang/ Ruijie Wu/ Weiwei Zhu