Review on 📐 Versatile Drawing Ruler: Easily Draw Round Curves, Parallel & Vertical Lines with Clear Scale by Jennifer Roberts

Direction: parts of image, top to bottom Axis YA Slot B Slot C Slot Draw a circle Radial slot C' Slot B' Slot A' slot 360 degree protractor Straight edge Instructions 1. A Draw an arc or circle: Insert the pen tip into the small hole to draw a circle, and rotate it at an angle to draw an arc or circle with the appropriate radius and center angle. 2. Measure the angle: align the side of the angle with the horizontal 0 degree line and rotate the Y axis to make it checkerboard like? [Radial Groove?] Matches or parallel to the other side of the corner to accurately measure the degree of the corner.3. Draw corner: Align the X-axis to 0 degrees, draw one side of the corner along the radial groove, rotate the stencil so the X-axis aligns with the corner you want to draw, and draw the other side of the corner corner.4 . Create a regular polygon: As an example, draw a regular pentagon with a radius of 3 cm: align the x-axis to 0 degrees, draw a point 3 cm away in a radial groove, rotate it counterclockwise ( 360 degrees / 5) 72 degrees, and draw the same point, connect the corresponding points. Hint: Draw a line from the left end to the right end of slot A, A', rotate it 60 degrees and draw the line in the same way to get a regular hexagon. Use the equilateral triangle of slot B, B'.5 in the same way. Translation of the ruler: Take as an example a rhombus with a side of 5 cm and an angle of 70 degrees: align the X-axis to 70 degrees, draw a line of 5 cm along the radial groove and move the ruler to the right 5 cm. [Note: Adjust the ruler "L" [angle?] more convenient for translation.] Also draw a line 5 cm along the radial groove, and then connect the other two sides of the shadow. This method allows you to draw parallel lines at any angle and with any data of a trapezoid, rhombus, parallelogram, rectangle, square, etc. 6. Use the nature of diagonal lines: Draw diagonal lines 6 cm long and 8 cm long, each with an angle of 30 degrees. Using a parallelogram as an example: align the X-axis to 0 degrees, draw points on the radial groove at -3 and 3 cm and rotate the template to align the X-axis to 30 degrees. Draw points on the radial groove at a distance of -4 and 4 cm and connect the points in turn. In the same way, you can draw isosceles trapezoids, rhombuses, rectangles, squares, etc. 7. Copy graphic: measure the polar coordinates of the vertices of the copied graphic, then draw points according to the polar coordinates and connect the points. 8. With groove A, A', groove B, B', groove C, C', the radial groove can be combined into a trapezoid, rhombus, rectangle, parallelogram, square, etc. Reminder: Avoid layering sand and dust in the gaps Multifunctional ruler to avoid awkward rotation. If the rotation is stiff, apply a small amount of glide wax between the rotating disc on the top of the scale and the base. Keep away from fire sources to avoid thermal deformation.