Yes, you can print hollow objects with 3D printer resin, and it’s a technique that offers numerous benefits in terms of material efficiency, cost savings, and even some unique aesthetic possibilities. As a 3D printer resin supplier deeply involved in the additive manufacturing industry, I’ve witnessed firsthand the growing interest in this method and the innovative applications it enables. 3D Printer Resin

Understanding the Basics of Resin 3D Printing
Before delving into the specifics of printing hollow objects, it’s essential to understand the fundamentals of resin 3D printing. Resin 3D printers, such as those using Stereolithography (SLA) or Digital Light Processing (DLP), work by selectively curing liquid resin layer by layer using a light source. This process allows for high – precision prints with smooth surfaces and fine details.
The resin we supply is formulated to have excellent curing properties, high strength, and good chemical resistance. Different types of resins are available, including standard, flexible, and high – temperature resistant varieties, each suitable for different applications.
Why Print Hollow Objects?
Material Savings
One of the most significant advantages of printing hollow objects is the reduction in material usage. Resin can be relatively expensive, especially for large prints. By creating a hollow structure, you can significantly reduce the amount of resin needed, which in turn lowers the cost of production. For example, if you’re printing a figurine, the internal volume that doesn’t contribute to the visible appearance can be removed, saving a substantial amount of resin.
Weight Reduction
Hollow objects are lighter than their solid counterparts. This can be crucial in applications where weight is a concern, such as in the aerospace or automotive industries. Lighter parts can lead to improved fuel efficiency and reduced wear and tear on moving components.
Design Flexibility
Printing hollow objects also opens up new design possibilities. You can create complex internal structures that are not possible with traditional manufacturing methods. For instance, you could design a hollow object with internal channels for fluid flow, which could be useful in creating custom – made medical devices or chemical reactors.
How to Print Hollow Objects with Resin
Designing the Model
The first step in printing a hollow object is designing the 3D model. Most 3D modeling software, such as Blender, Fusion 360, or Tinkercad, allows you to create hollow models. You can start by designing a solid object and then use the software’s tools to create a cavity inside. It’s important to leave a small drain hole in the model. This hole will allow any excess resin to drain out after the printing process, preventing the trapped resin from solidifying inside the object.
Preparing the Printer
Once the model is designed, you need to prepare the 3D printer. Make sure the resin tank is clean and filled with the appropriate type of resin. The printer’s settings, such as layer height, exposure time, and curing intensity, should be adjusted according to the resin manufacturer’s recommendations.
Printing Process
During the printing process, the printer will build the hollow object layer by layer. It’s important to monitor the print to ensure that everything is going smoothly. After the print is complete, carefully remove the object from the build platform and place it in a container to allow the excess resin to drain out through the drain hole.
Post – Processing
After draining, the object needs to be washed in a suitable solvent, such as isopropyl alcohol, to remove any remaining uncured resin. Then, it should be cured under a UV light source to achieve its full strength.
Challenges and Solutions in Printing Hollow Objects
Trapped Resin
One of the main challenges in printing hollow objects is dealing with trapped resin. If the drain hole is too small or the internal structure is too complex, resin may get stuck inside. To solve this problem, you can use a syringe to inject a small amount of solvent into the object to dissolve the resin and then drain it out. You can also design the model with larger drain holes or use a more open internal structure.
Structural Integrity
Hollow objects may be less structurally stable than solid ones. To ensure the object can withstand the intended use, you can add internal supports or ribs to the design. These supports can be designed in such a way that they are not visible from the outside but provide additional strength to the object.
Applications of Hollow Resin Prints
Jewelry and Fashion
In the jewelry and fashion industries, resin 3D printing of hollow objects allows for the creation of lightweight and intricate pieces. Designers can experiment with unique shapes and patterns that would be difficult to achieve with traditional manufacturing methods.
Prototyping
For product prototyping, printing hollow objects with resin can save time and money. It allows designers to quickly test the form and fit of a product without the need for expensive tooling.
Art and Sculpture
Artists can use resin 3D printing to create large – scale sculptures with a hollow structure. This not only reduces the cost of materials but also makes the sculptures easier to transport and install.
Conclusion

Printing hollow objects with 3D printer resin is a viable and beneficial technique. It offers significant advantages in terms of material savings, weight reduction, and design flexibility. As a 3D printer resin supplier, we are committed to providing high – quality resin that is suitable for a wide range of applications, including the printing of hollow objects.
Wax 3D Printer If you’re interested in exploring the possibilities of 3D printing with resin or have specific requirements for your projects, we’d love to have a discussion with you. Contact us to start a conversation about your procurement needs and how our resin can help you achieve your goals.
References
- Gibson, I., Rosen, D. W., & Stucker, B. (2015). Additive Manufacturing Technologies: 3D Printing, Rapid Prototyping, and Direct Digital Manufacturing. Springer.
- Wohlers, T. (2021). Wohlers Report. Wohlers Associates.
Hangzhou Originator 3D Technology Co., Ltd.
Hangzhou Originator 3D Technology Co., Ltd. is one of the most experienced 3d printer resin manufacturers and suppliers in China. With abundant experience, we warmly welcome you to wholesale high quality 3d printer resin made in China here from our factory. Contact us for more details.
Address: Room 403, Building 2, Block B, Heda Incubation Park,No. 452, 6th Avenue, Xiasha, Qiantang District,Hangzhou, Zhejiang, China
E-mail: Sales@originator3d.com
WebSite: https://www.originator3d.com/