万能三角尺的设计制作

Design and Manufacture of Universal Triangle Ruler

此款万能三角尺集直尺、三角尺、圆规、量角器等功能于一体。其独特的可变换角度设计,可以实现(30°,60°,90°)直角三角尺与(45°,45°,90°)直角三角尺的变换,同时将暗藏于一条边上的顶针和粉笔夹旋出就可以实现圆规功能,并且可以任意调节所画圆的半径。此款万能三角尺具有体积小,重量轻,耗材低,使用、携带方便等特点,是一种理想的绘图工具。

This universal triangle ruler sets ruler, triangle ruler, compass, protractor and other functions in one. Its unique design can change the angle. It can be achieved （30 °, 60 °, 90 °） set square with a right angle （45°, 45 °, 90 °） right triangular ruler transform. While hidden in a side of the thimble and chalk clip can spin out when using the compass and can be adjusted as the radius of the circle. This universal triangle ruler is with small size, light weight, low supplies, portable and easy to use. It is an ideal tool for drawing.