AutoCAD

How To Scale In One Direction AutoCAD?

Understanding Scaling in One Direction in AutoCAD

Scaling an object in one direction within AutoCAD involves modifying either its width, height, or depth without affecting the other dimensions. This gives you flexibility when designing, allowing for more controlled adjustments. Below are clear, step-by-step instructions on how to achieve this in AutoCAD 2025.

Step-by-Step Guide to Scale in One Direction

Step 1: Select the Object

Begin by selecting the object you wish to scale. Use your cursor to click on the object or select multiple objects by clicking and dragging a selection window around them.

Step 2: Activate the Scale Command

Once the desired object is selected, type the command SCALE into the command line and hit Enter. This will initiate the scaling process.

Step 3: Set a Base Point

After entering the scale command, AutoCAD will prompt you to specify a base point. This point acts as a reference for scaling. Click on a point on the object, or you can enter coordinates directly to set the base point.

Step 4: Choosing the Scaling Option

Following the base point selection, you need to choose how you want to scale your object. Instead of entering a scale factor for uniform scaling, you will have to scale non-uniformly. To do this:

  • Type the scale factor you want for the X-direction (width) followed by a comma and then the scale factor for the Y-direction (height). For instance, if you wish to set the X-direction scale factor to 2 and the Y-direction to 1, type 2,1 and hit Enter.

Step 5: Confirm the Changes

Observe the object. It should have scaled according to the specified factors in the selected direction while retaining its original proportions in the other direction. Verify that this fits your design requirements.

Advanced Scaling to Specific Dimensions

Setting Explicit Dimensions

If precise scaling is required, use the reference scaling method. For that:

  • Type the command SCALE and select the object.
  • Choose a base point as previously described.
  • Type R for reference when prompted for a scale factor.
  • Click two points that represent a known distance on the object.
  • Enter the length you want that distance to be after scaling. This will adjust the object accordingly.

Troubleshooting Common Issues

Object Scaling Insufficiently or Excessively

If the results are not as expected, check that your scale factors are set correctly. Negative values or overly large scales can lead to unexpected transformations.

Restoring Original Size

If you need to revert the object to its original size, use the command SCALE and enter a scale factor of 1. This applies uniform scaling, restoring the original dimensions.

FAQ

1. How can I scale multiple objects in one direction at once?

Select all the objects you want to scale, then follow the same steps as for a single object, ensuring to use correct scale factors for the desired dimension.

2. What happens if I enter a zero scale factor?

Entering a scale factor of zero will effectively erase the object, rendering it to a point. Be cautious with value entries to avoid accidental loss of your designs.

3. Can I undo the scaling action if I make a mistake?

Yes, you can use the UNDO command or simply press Ctrl + Z to reverse the last action taken, including scaling 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.