How Do You Draw Gear Teeth in Autocad?

How Do You Draw Gear Teeth in Autocad?

Autocad is a powerful software that allows users to create detailed technical drawings, including gear teeth. Drawing gear teeth in Autocad requires precision and understanding of the process. In this tutorial, we will walk you through the steps to draw gear teeth using Autocad.

Step 1: Setting up the Drawing

Before we start drawing the gear teeth, we need to set up our workspace in Autocad. Open Autocad and create a new drawing file. Set the units to your desired measurement system, such as inches or millimeters.

Step 2: Creating a Circle

To draw gear teeth, we will first create a circle that represents the base of our gear. Use the CIRCLE command or select it from the toolbar.

Specify the center point of the circle and its radius. Alternatively, you can use the DRAW menu and select Circle.

Step 3: Dividing the Circle into Teeth

Now that we have our base circle, we need to divide it into equal sections for each tooth. To do this, use the DIVIDE command or select it from the toolbar. Specify the number of divisions you want for your gear teeth.


You can calculate the number of divisions based on your desired number of teeth on your gear.

Step 4: Drawing Gear Teeth

To draw each individual tooth, use the LINES command or select it from the toolbar. Start by selecting one division point on the circumference of your base circle as the starting point of your tooth.

Then, draw lines from this point to the adjacent division points. Repeat this process for each tooth.


Remember to draw both the outer and inner edges of each tooth to create a well-defined gear shape.

Step 5: Adding Fillets

To enhance the appearance and functionality of our gear teeth, we can add fillets to their corners. Fillets are rounded edges that improve the performance and durability of gears.

Use the FILLET command or select it from the toolbar. Specify the radius of the fillet and select the corners you want to fillet on each tooth.


The size of the fillet depends on factors like gear size, application, and personal preference. Experiment with different values to find what works best for your design.

Step 6: Finishing Touches

Once you have drawn all your gear teeth, you can make any final adjustments or modifications as needed. You can use Autocad’s editing tools like TRIM, EXTEND, or MIRROR to refine your gear shape.


You have successfully drawn gear teeth in Autocad! Remember that practice makes perfect, so don’t be afraid to experiment and refine your skills. With time, you will become more proficient in creating complex gear designs using Autocad.


  • Set up a new drawing file in Autocad with appropriate units.
  • Create a base circle for your gear using the CIRCLE command.
  • Divide the circle into equal sections for each tooth using the DIVIDE command.
  • Draw each gear tooth using the LINES command.
  • Add fillets to the corners of your gear teeth using the FILLET command.
  • Make any final adjustments or modifications using Autocad’s editing tools.

By following these steps, you can easily draw gear teeth in Autocad and create intricate gear designs for various applications.