3 Interesting 3D Printing Projects for Teachers and Students to Design and 3D Print

Whether you’re a classroom teacher planning a STEM weekend activity or a student looking to build something, we have prepared three engaging projects that are perfect starting points. Each project is beginner-friendly and can be completed in a single weekend using SelfCAD, and step-by-step interactive tutorials are included to guide.
1. Design and 3D Print a Functional Funnel-Practical and Educational

A funnel is a simple yet practical tool that channels liquids or small items into narrow openings with minimal spillover. Designing a funnel combines geometric thinking with practical design considerations, a great introductory project for students learning about shape manipulation and design parameters.
Follow the interactive tutorial: Funnel Interactive tutorial.
Blog link: 3D designing a SelfCAD.
What you’ll learn:
- How to use shape generator tools
- How to add thickness to 3D models
- How to use the Bend, cylinder, rotate, move, and union tool
Why it’s great for students and teachers:
This project doesn't require advanced skills; students will learn to use shape generator tools and explore the Add Thickness, Bend, Move, and Rotate tools, thereby developing core modeling skills in SelfCAD while making something useful. Teachers can also introduce real-world applications, such as funnel use in lab environments or kitchens, to connect design thinking to everyday life.
2. Create a Personalized Gift Box
A gift box is an interesting 3D-printing project that adds a creative, personal touch with custom designs, patterns, and text. It’s also an excellent opportunity for students to explore lid-and-base design principles, tolerance for fitting parts, and artistic expression.
Follow the interactive tutorial: Gift box interactive tutorial.
What you’ll learn:
- How to use the cube shape, L shape, and sphere shape
- How to sketch 3D models
- How to mirror, scale, and rotate 3d models
- How to use the copy offset tool
Why it’s great for students and teachers:
Designing a gift box encourages creativity. Students can tailor it for birthdays, holidays, or classroom events.

It is also excellent for integrating math concepts, like measuring dimensions and adjusting for tight or loose fits for the lid. Through hands-on design, they’ll also learn about how simple adjustments can hugely impact the final print quality.
Teachers can use this project to introduce design iteration: try printing a prototype, test the lid fit, then refine the design.
3. Design a Custom Stamp

A custom stamp is a fun artifact with endless possibilities, from monograms to classroom badges or artwork enhancing other projects. With SelfCAD’s intuitive design tools, students can create their own.
Follow the interactive tutorial: 3D Printable Custom Stamp.
What you’ll learn:
- How to use follow path tool of SelfCAD
- How to modify a cube and sphere to create your intended design
- How to use 3D sketch tool of SelfCAD
- How to scale, move, rotate, and taper 3D models
Why it’s great for students and teachers:
A custom stamp helps students explore shape manipulation, and even how to add 3D texts to 3D models.

Teachers can use it to introduce branding, symbolism, or classroom reward systems. It’s a fun mix of art and STEM, giving students a tangible way to personalize their work.
Tips for Teachers to Help Students Succeed in 3D Designing for 3D Printing
Use SelfCAD’s Interactive Tutorials as Teaching Tools
Each project comes with a step-by-step interactive tutorial. These make it easier for you to lead structured lessons while allowing students to follow along at their own pace and build independence as they learn. You can also explore more interactive tutorials to learn how to design your 3D models.
Guide Students to Plan Before Designing
Whe designing 3D models from scratch, encourage students to sketch or discuss their ideas before opening SelfCAD. This helps them clarify their goals and gives you an opportunity to guide their thinking toward feasible, well-structured designs.
Incorporate Prototyping and Iteration
Have students print early prototypes of their designs. Use this as a teaching moment to introduce prototyping, identifying issues, refining, and reprinting. This mirrors real engineering workflows and strengthens problem-solving skills.
Encourage Reflection and Sharing
After printing, ask students to reflect on what worked well and what they would change. Classroom sharing through presentations or simple table discussions helps students develop communication skills and deepens their understanding of the design process.
Conclusion
These three 3D printing projects offer meaningful, hands-on learning opportunities that fit seamlessly into the classroom. Each project introduces students to essential design skills, encourages creativity, and helps them understand how digital concepts become physical objects. With SelfCAD’s intuitive tools and interactive tutorials, teachers can easily guide students through the entire process, from planning and modeling to printing and evaluating their work.