Use method of cutting backing plate

Generally, the general scope of use will be written on the cutting pad, but it is found that many people do not know the function of the above pattern. Let's share with you the use of the pattern on the cutting pad.

Let's look at one side first.

The diameter of the ellipse is the diameter of the triangle, and the diameter of the circle on the left is the diameter of the circle.

When we use it, we can refer to the above values for drawing and carving.

Then we can see a semicircle below.

In fact, this pattern is the function of protractor.

We can use it to determine the angle

Let's look at the other side.

The circled part is also used to draw a circle.

The numbers inside all indicate the diameter of the circle.

The scale on the four sides is actually the function of a ruler in centimeters.

There are scales on all four sides, so we can easily draw some geometric figures in the figure, such as squares and rectangles we need.

Finally, let's look at the top arc.

Many people don't know the use of this.

The numbers above represent the radius of the circle. We can draw the circle we want on the basis of these arcs.