AutoCAD

How to Divide Circle in AutoCAD?

Understanding Circle Division in AutoCAD

Dividing a circle into equal parts in AutoCAD is an essential technique used by designers and draftsmen. Whether you need to create sections for a pie chart, design a component, or simply organize your layout, knowing how to accurately divide a circle is crucial. This guide will explain several methods to achieve this in AutoCAD.

Using the Divide Command

1. **Open AutoCAD**: Launch the AutoCAD 2025 application on your computer.

2. **Create a Circle**: Use the ‘Circle’ tool found on the Draw panel to draw a circle. Click anywhere in your workspace to set the center point and then specify the radius by moving your cursor outward.

3. **Access the Divide Tool**: Navigate to the “Drafting” tab on the ribbon. Locate the “Draw” panel and click on the “Point” drop-down menu. From there, select the “Divide” option. Alternatively, you can type `DIVIDE` into the command line and hit Enter.

4. **Select the Circle**: Click on the circle you wish to divide. This will prompt AutoCAD to ask for the number of segments you want to create.

5. **Enter Number of Segments**: Input the number of equal parts you want (for instance, type `12` for 12 equal divisions) and hit Enter. Points will be automatically placed around the circumference of the circle based on your specified number.

Manual Division Techniques

While AutoCAD provides tools to divide a circle efficiently, manual techniques can also be beneficial, especially when a visual or conceptual understanding is required.

1. **Use a Compass for Arc Division**:
– Place the compass point on the center of your circle.
– Set the compass width to a small radius and draw a small arc across the circle.
– Without changing the compass width, repeat this process to create intersection points on the circle.
– Connect these points to create equal segments.

2. **Bisecting with Lines**:
– Draw a diameter using the ‘Line’ tool, forming a straight line through the center of the circle.
– Rotate the same diameter line to create additional divisions. Each rotation should divide the remaining angle equally, leading to precise segment placement.

Dividing Circles into Varying Numbers of Parts

**To Divide a Circle into Specific Parts**: Depending on the number of segments, you might need to calculate angles for clarity in your design.

– For 6 equal parts: Each section will measure 60 degrees (360/6).
– For 8 equal parts: Each section will measure 45 degrees (360/8).
– For 20 equal parts: Each section will measure 18 degrees (360/20).

Using the Divide command simplifies this process, allowing for quick division without manual calculations.

FAQs

**How can I divide a circle into 5 equal parts in AutoCAD?**
To divide a circle into 5 parts, use the Divide command as described above and input `5` when prompted for the number of segments.

**What if I want to create divisions without using the Divide command?**
You can use the method of manually bisecting the circle and then dividing the angle further, as outlined in the manual division techniques section of this guide. This ensures precision even when equipment is not available.

**Can I adjust the points created after division?**
Yes, after using the Divide command, you can select the points and move or adjust them as necessary to fit your design specifications.

About the author

Wei Zhang

Wei Zhang

Wei Zhang is a renowned figure in the CAD (Computer-Aided Design) industry in Canada, with over 30 years of experience spanning his native China and Canada. As the founder of a CAD training center, Wei has been instrumental in shaping the skills of hundreds of technicians and engineers in technical drawing and CAD software applications. He is a certified developer with Autodesk, demonstrating his deep expertise and commitment to staying at the forefront of CAD technology. Wei’s passion for education and technology has not only made him a respected educator but also a key player in advancing CAD methodologies in various engineering sectors. His contributions have significantly impacted the way CAD is taught and applied in the professional world, bridging the gap between traditional drafting techniques and modern digital solutions.