AutoCAD

How to Draw Tan Tan Radius Circle in AutoCAD 2018

How to Draw Tan Tan Radius Circle in AutoCAD 2018
Wei Zhang
Written by Wei Zhang

Understanding the Tan Tan Radius Circle

Creating precise designs is crucial in the field of engineering and CAD. One useful method in AutoCAD is drawing a tan tan radius circle, a technique that facilitates the creation of arcs and curves connected to other elements in your design. This guide will walk through the process step by step.

Preconditions Before Starting

Before commencing, ensure that AutoCAD 2025 is installed and ready to use. Familiarize yourself with the basic commands and layout of the interface, as this will streamline your drawing process. Confirm that you have the necessary elements in your drawing area to which you’ll refer in the process.

Step 1: Set Up Your Drawing Environment

  1. Open AutoCAD 2025: Launch the application and create a new drawing.
  2. Adjust Units: Type UNITS in the command line and select your preferred unit of measurement (e.g., inches, millimeters).
  3. Grid and Snap Settings: Activate the grid and snap settings to enhance precision. You can toggle these options in the view settings or by typing GRID and SNAP in the command line.

Step 2: Draw the First Object

  1. Draw Base Lines: Utilize the LINE command to create the primary lines or shapes that will serve as reference points for your tan tan radius circle.
  2. Position the Lines: Make sure your lines intersect at the intended point for the radius circle.

Step 3: Construct the Tan Tan Radius Circle

  1. Circle Command: Begin by typing CIRCLE and pressing Enter.
  2. Choose the First Point: Click on the first line where the circle will be tangent.
  3. Select the Second Point: Move to the second line and click to establish the second tangent point.
  4. Input the Radius: Specify the radius of the circle by typing in the desired value and confirm with Enter.

Step 4: Finalizing the Drawing

  1. Inspect the Circle: Review the circle’s placement to ensure it is tangent to both lines. Adjust it using the MOVE command if necessary.
  2. Refine the Drawing: Utilize other AutoCAD commands such as TRIM or EXTEND to clean up any overlapping lines or to connect them with the created circle.

Step 5: Save Your Work

After ensuring correctness and completeness, save your drawing. Use the SAVE command or go to the File menu and select Save As. Choose an appropriate format and location.

Frequently Asked Questions

1. What is the importance of using the tan tan radius circle technique in AutoCAD?

This technique is essential for creating smooth transitions and connections between geometric shapes, which is particularly useful in designs that require high precision in engineering applications.

2. Can I use the tan tan radius circle method for shapes other than circles?

Yes, the principles of tangency can apply to other geometrical shapes, allowing for creative and efficient design solutions.

3. How can I modify the radius of an existing circle after drawing?

To modify the radius of an existing circle, select the circle and use the PROPERTIES palette to adjust its radius or use the SCALE command for proportional adjustments.

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.