1. First, open the CAD software and draw a circle with an appropriate size.

2. Draw a straight line with the quadrant on the right side of the circle as the endpoint, and then draw a straight line tangent to the circle and intersecting with the previous straight line.

3. Enter the "MI" mirror command at the command line, press enter to confirm, select all the graphics, and draw a loving outline with a straight line as the mirror line.

4. Enter the "TR" pruning command at the command line, press enter to confirm, click with the mouse to delete the redundant lines, and the drawing of love is completed.

You can continue to fill in patterns and colors for love. Enter "h" at the command line to bring up the dialog box of "Pattern Fill and Gradient", select the appropriate color, click "Add: Select Object", and click OK to draw love.

CAD system functions:

The functions of modern CAD system include:

1, design component reuse.

2. Simple design modification and version control functions.

3. Automatic generation of design standard parts.

4. Check whether the design meets the requirements and actual rules.

5. It is not necessary to establish the design simulation of the physical prototype.

6. Automatic design of assembly parts (a bunch of parts or other components)

7. Output of engineering documents, such as manufacturing drawings and bill of materials.

8. Direct output from design to production equipment.

9. Directly output to the machine for rapid prototyping or rapid manufacturing of industrial prototypes.