Reference Curve

Step 1: Select a Layer

Select the layer where you want to create the reference curves.

Step 2: Circle Command

Go to the Curve tab and use the Circle command.

Step 3: Create the Circles

In the Top viewport, create four circles of different sizes. With Grid Snap activated, select any point and type 2 millimeters for the first circle.

• Repeat the command by right-clicking, select another point, and type 3.5 millimeters for the second circle.

Step 4: Finish the Reference Curves

Continue to create another circle of 4 millimeters and a final one of 5 millimeters.

Step 5: Anotation Dots

To make the circles easier to visualize, add dots. Go to the Drafting tab.

Step 6: Create you Dots

Select Annotate Dot, type the diameter of each circle, and place the dots accordingly.

Step 4: Offset Command

Offset each of these circles using the Offset command, setting the offset to 0.6 millimeters.

Step 4: Group

Organize the circles by grouping each pair for better management. Use the Group command for this.

Video Lesson

Next Step: Insert the reference image and adjust the size of the circles.