AutoCAD

How To Scale A Group Of Objects In AutoCAD

Steps to Scale Multiple Objects in AutoCAD

Scaling multiple objects in AutoCAD can significantly improve your workflow when adjusting the size of drawings. Follow this detailed guide for effective results.

Step 1: Access the Scale Tool

Begin by locating the Scale tool within the AutoCAD environment. You can find it under the Home tab, specifically in the Modify panel. Alternatively, you can type SCALE into the command line and press Enter.

Step 2: Select the Objects

After activating the scale command, you will need to select the objects you wish to scale. Click on the individual objects or drag your cursor to form a selection box around the group. Once completed, press Enter to confirm your selection.

Step 3: Specify the Base Point

The next task is to define a base point around which the scaling will be applied. This point serves as a reference for the transformation. You can choose a specific point in your drawing, such as a corner or the center of the grouped objects. Click to set this base point.

Step 4: Input the Scale Factor

Following the selection of the base point, AutoCAD will prompt you to enter a scale factor. This value determines how much your selected objects will enlarge or reduce in size. Input a number greater than 1 to enlarge, or a number less than 1 to shrink the objects. Press Enter once you’ve entered the desired scale factor.

Step 5: Observe the Scaling Effect

After entering the scale factor, watch as your selected objects resize around the base point you defined. Ensure that the results meet your expectations. If adjustments are necessary, you can undo the changes and repeat the process with a different scale factor.

Additional Scaling Techniques

Scaling Without Moving Objects

To scale objects without altering their position, follow the same initial steps but ensure you’re careful with the base point. Select the base point carefully to avoid inadvertently shifting the objects during scaling.

Scaling Using Reference Points

For precise scaling, particularly when changing the size of objects based on a specific measurement, you can utilize reference points. After selecting your objects and activating the scale command, you can type R for reference, then designate your original and desired lengths. This method ensures that your scaling is both accurate and intentional.

FAQs

1. What is the scale factor for a drawing that needs to be scaled down from 1:20 to 1:50?
To calculate the scale factor for this adjustment, divide the intended scale by the current scale (50/20), resulting in a factor of 2.5. This means you will scale down the objects by a factor of 2.5.

2. Can I scale objects in AutoCAD using a specific dimension?
Yes, you can specify dimensions during the scaling process. Using reference points allows you to establish a real-world measurement that the scaled objects must conform to.

3. Will scaling objects distort them?
If you maintain the proportions of the scale factor (inputting the same factor in all dimensions), the shapes will not become distorted. However, scaling by different factors vertically and horizontally could lead to distortion.

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.