AutoCAD

How to Scale in Layout AutoCAD 2018?

Understanding Scaling in AutoCAD 2025 Layouts

Scaling in AutoCAD layouts is a crucial process that allows designers and engineers to present their drawings in a manner that integrates well with various presentation formats. This guide explains how to effectively scale your drawings within the layout space of AutoCAD 2025.

Adding a Scale to Your Layout

  1. Access Application Options: Start by clicking on the Application menu to access the options.
  2. Select User Preferences: Navigate to the User Preferences tab within the Options dialog box.
  3. Modify the Default Scale List: Look for the Default Scale List option at the bottom. Click this to open the corresponding dialog.
  4. Add New Scale: Hit the Add button to introduce a new scale value as required for your project.

Scaling a Drawing in the Layout

  1. Open Scaled Drawing: Choose the Window menu, then select Scaled Drawing.
  2. Initiate Scaled Drawing Creation: Click on the Make Scaled Drawing option in the panel that appears.
  3. Select Scale Ratio: Choose your desired scale ratio from the list presented.
  4. Choose Length Format (Optional): Select your preferred measurement format, such as Decimal, Architectural, Engineering, or Fractional.

Adjusting Dimension Scaling

  1. Access Dimension Style: Navigate to the Home tab and locate the Annotation panel. Click on Dimension Style.
  2. Modify Dimension Styles: In the Dimension Style Manager, identify and select the style you want to adjust.
  3. Change Fit Tab Settings: In the Modify Dimension Style dialog box, go to the Fit tab. Under the Scale for Dimension Features section, select Scale Dimension to Layout (Paper Space).
  4. Confirm Changes: Click OK to apply the changes.

Scaling a Viewport

  1. Select Viewport for Modification: Click on the viewport you wish to scale.
  2. Access Properties: Right-click on the selected viewport and choose Properties from the menu.
  3. Unlock Display Settings (If Applicable): Ensure that the Display Locked setting is set to No, allowing for adjustments.
  4. Choose a New Standard Scale: In the Properties palette, find the Standard Scale option and select a new scale from the available list.

Finding the Scale of a Drawing

  1. Select the Entire Drawing: Click on the drawing to highlight all components.
  2. Activate Scale Option: Once selected, choose the Scale command.
  3. Use Reference for Scaling: Select the Reference option. For the base point, click on a corner point of the drawing. Input 1 for the first reference point and then type 50 for the second before pressing Enter.
  4. Notice the Updated Scale: The drawing will now be adjusted to a scale of 1:50.

Creating a Scale Bar in AutoCAD

Though a scale bar can be created using various methods, a video tutorial may provide the best visual guide. Refer to reliable online sources for step-by-step instructions on how to generate a scale bar efficiently.

Understanding Scale Notations

When expressing scales, such as 1:100, this means that 1 unit on the drawing equals 100 units in the real world. This relationship is important for maintaining accuracy when presenting scaled information.

Tips for Adjusting Paper Space Scaling

  1. Set Annotation Scale for Model Space: Change to the Model tab to adjust the annotation scale for model space.
  2. Select Viewports for Paper Space: In paper space, click on the viewport to select it.
  3. Adjust Annotation Scale: Click on the current annotation scale displayed in the status bar and select a new scale from the dropdown options.

How to Zoom to a Specific Scale

To zoom to your desired scale within a viewport:

  1. Double-click Inside Viewport: This will activate the viewport for adjustments.
  2. Enter Zoom Command: Type Zoom in the command line.
  3. Specify Desired Scale: Input the specific scale you wish to use and hit Enter.

FAQ

What should I do if my drawing appears distorted after scaling?
Ensure you are using the correct scale settings for both the model space and paper space. Check your dimension styles and viewport settings to ensure you are accurately reflecting the changes.

Is it necessary to lock my viewport after scaling it?
While it is not mandatory, locking your viewport can prevent accidental changes to the scale or drawing view in the layout.

Can I revert to the original scale if needed?
Yes, adjustments can be made by accessing the Properties palette for the viewport and reverting the scale to its previous value or modifying it further.

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.