How to Enlarge Objects in SketchUp

One of the essential tasks in 3D modeling is the ability to resize objects to fit your design requirements. Whether you are working on architectural models, product designs, or educational projects, knowing how to use the Scale Tool in SketchUp is crucial. Here, we will explore the process of enlarging objects in SketchUp for both the desktop and online versions.

Getting Started with SketchUp

As of 2023, SketchUp offers several versions to choose from. The free version, SketchUp Free, is now the online version only. This online version operates similarly to its desktop counterparts but with some limitations in terms of advanced features. To use SketchUp for your projects, you will need to sign up with your Google account.

Methods to Enlarge Objects in SketchUp

Selecting the Scale Tool

To begin enlarging an object in SketchUp, follow these steps:

With the Select Tool, select the geometry you want to scale. Next, select the Scale Tool, or press the 'S' key. This will allow you to resize the selected object. Click on an edge or face handle, not the corner handles, to avoid distorting the shape. Move the cursor to scale the entity. A green, red, or blue box will appear indicating the direction and ratio of scaling. Click to set your selection's new scale.

Using the Scaling Command

Alternatively, you can select the object or all the faces and use the Scaling Command. Use the green handles to scale and maintain the ratio. If you want to scale without maintaining the ratio, use the corner handles.

Advanced Sizing with Dimension Tool

A more precise method for resizing involves using the Dimension Tool to add reference dimensions to your model. This can be especially useful when you need to size objects based on specific measurements. Here’s how:

Add dimensions to the model by selecting the Dimension Tool and clicking on the object to measure. Group the dimensions with the model's main group for easier management. Use the Scale Tool to resize the object, taking into account the dimensions you’ve added.

Note that when using the Scale Tool, the dimensions you’ve added will update as you resize the object. This is helpful for ensuring that all dimensions are proportional and fit your design requirements.

Practical Application: Wooden Toy Car

A useful scenario is when you want to enlarge a model, like a wooden toy car. For instance:

Select the wooden toy car model. Use the Scale Tool to change its size from 6 inches to 10 inches by dragging with the scale tool. Use the Dimension Tool to add dimensions to the car, such as wheel and body dimensions. This will help you maintain the proportions as you scale the car.

Additional Tips and Resources

Remember, when working with physical models, you need to consider practical constraints like the availability of cutting tools. If the wheels are enlarged to an impractical size, you might not have the appropriate tools to make them. Similarly, ensure that your model’s parts fit well within the anticipated material sizes, such as lumber or sheet materials.

If you’re new to SketchUp or need more advanced techniques, you might find the following resources helpful:

What are you modeling with SketchUp today and how is that working for you? How can I display animated scenes of a SketchUp model to someone who doesn’t have SketchUp on their computer?

By mastering these techniques, you can enhance your SketchUp skills and take your 3D modeling to the next level.