The main body of the compass ruler is made of plastic injection molding. The prominent function is to draw a straight line. The hidden function is to draw a circle or an arc. The circle drawing device is located at the middle chute of the compass ruler. After strict control, the thread of the knob is controlled in one to two turns to make it easier and more convenient to use, when we rotate the gear moving device, we can have an interesting interactive experience. when it is not used as a compasses, it is also a ruler and compasses that do not affect the function of the ruler at all. in the past, both are two separate and independent products. this time, we combine the ruler and compasses with lovely shapes. the ruler carries the compasses parts and the ruler as a whole. it is convenient to use and carries light compasses. the ruler is ~
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I feel that I will be blocked when drawing a circle, and then I feel that I can't hold it with my hands.
In fact, many award-winning works have been tried, but it is still a support to stick to them.
The idea is very good.
I saw the products on Taobao. It's so cheap. Unfortunately, there is no promotion.
The idea is very good, but it feels a bit complicated, and if you draw a circle with your finger according to that point, you always think that children will move to a ruler. Hee hee
The idea is good, but there is a question. Is it really accurate to press the circle with your fingers?
This idea is good, different from traditional compasses.
OK will support it
Yes, it can be.
Creative