TinkerCAD

How to Hollow Out in Tinkercad

To create hollow objects in Tinkercad, a user-friendly 3D design tool, follow these well-defined steps. This technique is especially useful for 3D printing objects, allowing for lighter designs and reduced material usage. Here’s how to effectively hollow out shapes in Tinkercad.

Understanding the Basics of Hollowing Objects

Hollowing out an object involves creating a cavity within a solid shape. In Tinkercad, this can be achieved by using the concept of "holes." A hole is a shape that can subtract from another shape, allowing for the creation of empty spaces or cavities.

Step 1: Choose Your Initial Shape

Begin by selecting a basic 3D shape from the Tinkercad shape library. This could be a cube, cylinder, or any other fundamental shape that you want to hollow out. After selecting the desired shape, drag it onto the workplane to start your design.

Step 2: Create the Hollowing Shape

Next, you’ll need to create a second shape that will define the hollow area. This shape should be slightly smaller than the initial shape to ensure it fits inside. For example, if you started with a cube, you could create another smaller cube or a cylinder that will compose the hollowed-out area.

Step 3: Position the Hollowing Shape

Carefully position the second shape inside the first one. It is essential to ensure that the smaller shape is fully enclosed within the outer shape you wish to hollow. Utilize Tinkercad’s alignment tools for precise placement to avoid any miscalculations that could lead to uneven cavities.

Step 4: Convert to a Hole

Select the smaller shape that you placed inside the larger one. In Tinkercad, there is a property labeled “Hole” that you can toggle. By changing the selected shape to a hole, you inform Tinkercad that this object should subtract from the volume of the outer shape.

Step 5: Group the Shapes

Select both the outer shape and the hole shape simultaneously, then use the "Group" function (which can be found on the toolbar) to combine them. This action will subtract the hollow shape from the outer shape, resulting in a hollow version of your original object.

Step 6: Adjust and Fine-tune

Now that you have successfully hollowed out your object, you can modify its dimensions or features as needed. You may want to change the thickness of the walls or further embellish the outer shape with additional elements or designs. Use Tinkercad’s tools to refine your hollow object until you achieve the desired look.

Common Applications of Hollowing in Tinkercad

Creating hollow objects is beneficial for various applications. This includes making light-weight prototypes, designing containers with storage space, or even crafting decorative items that require less material. Its versatility makes hollowing a vital skill for any Tinkercad user.

Frequently Asked Questions

1. Can I hollow out complex shapes in Tinkercad?
Yes, Tinkercad allows you to hollow out complex shapes by combining multiple shapes. Simply create a larger shape and several smaller shapes that represent the hollows, adjust their positions, and then group them as described.

2. What happens if the inner shape overlaps the outer shape too much?
If the inner shape overlaps significantly with the outer shape, grouping them may lead to irregularities or fail to create a hollow object. It’s crucial to maintain a defined boundary and avoid excessive overlap to ensure the hole is created correctly.

3. Is there a limit to the size of the hollows I can create in Tinkercad?
While there are no strict size limits for hollows, extremely large holes may affect the stability of the design, especially when 3D printing. It’s advisable to keep an eye on the wall thickness and ensure the design remains structurally sound for practical applications.

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.