3D Printing Projects for Kids: Fun and Educational Ideas

3D Printing Projects for Kids: Fun and Educational Ideas

3D printing is an innovative technology that allows people to create three-dimensional objects from digital files. It's a fascinating process that has captured the imagination of many, including children. Kids are naturally curious and creative, and 3D printing provides them with an opportunity to explore their ideas and bring them to life. 

There are many 3D printing projects that kids can undertake, from simple designs to more complex creations. These projects can help children develop their problem-solving skills, improve their spatial awareness, and foster their creativity. Additionally, 3D printing can be a fun and engaging way for kids to learn about science, technology, engineering, and math (STEM) concepts. 

In this article, we'll explore some of the best 3D printing projects for kids. Whether your child is a budding engineer, artist, or inventor, there's sure to be a project that will spark their interest and inspire their imagination. From designing and printing their own toys to creating custom jewelry and accessories, the possibilities are endless. 

Understanding 3D Printing 

3D printing is a technology that allows you to create three-dimensional objects from a digital file. It is also known as additive manufacturing because the process involves adding layer upon layer of material until the final object is complete. The technology has been around for a few decades, but it has become more accessible and affordable in recent years. 

The basic process of 3D printing involves three steps: designing the object, slicing the design into layers, and printing the layers. The first step involves creating a digital design using computer-aided design (CAD) software. There are many free and paid options available online, and some are specifically designed for kids. 

Once the design is complete, it is sliced into layers using slicing software. The software determines how the printer will create each layer and generates a set of instructions for the printer. The instructions include information about the temperature, speed, and other parameters that the printer needs to follow. 

Finally, the printer creates the object by adding layer upon layer of material. There are many different types of 3D printers, but most use some form of plastic filament or resin. The material is melted or cured and then deposited onto the build platform layer by layer until the object is complete. 

3D printing has many advantages over traditional manufacturing methods. It allows you to create complex shapes and geometries that would be difficult or impossible to create with other methods. It also allows you to create custom objects quickly and easily, without the need for expensive tooling or molds. 

In conclusion, 3D printing is a fascinating technology that is becoming more accessible and affordable every year. Kids can learn a lot from experimenting with 3D printing, and there are many fun and educational projects that they can create. 

Safety Measures for Kids 

When it comes to 3D printing projects for kids, safety should always be a top priority. Here are some safety measures that parents and educators should keep in mind: 

  1. Adult Supervision

Kids should never be left alone with a 3D printer. An adult should always be present to supervise the printing process and make sure that the child is following all safety guidelines. 

  1. Protective Gear

Wearing protective gear is essential when working with a 3D printer. Kids should wear safety glasses to protect their eyes from flying debris, and gloves to protect their hands from hot surfaces. 

  1. Filament Safety

The filament used in 3D printing can be dangerous if not handled properly. Kids should never touch the filament while it is being fed into the printer, as it can cause burns. It's also important to store the filament in a safe place, away from heat and moisture. 

  1. Printer Safety

The 3D printer itself can also pose a risk to kids. They should never touch any moving parts while the printer is in operation, and should never stick their fingers or any other objects into the printer. 

  1. Ventilation

3D printing can produce fumes that may be harmful if inhaled. It's important to ensure that the printing area is well-ventilated, and that kids are not exposed to the fumes for extended periods of time. 

By following these safety measures, parents and educators can ensure that kids can enjoy 3D printing projects in a safe and responsible manner. 

Choosing the Right 3D Printer 

When it comes to choosing the right 3D printer for kids, there are several factors to consider. Here are some of the most important things to keep in mind: 

Size and Build Volume 

The size and build volume of a 3D printer will determine the size of the objects that can be printed. For kids, it's often best to choose a smaller printer with a build volume of around 6 x 6 x 6 inches. This will allow them to print small objects without taking up too much space. 

Filament Type 

There are several types of filament that can be used in 3D printers, including PLA, ABS, and PETG. PLA is the most common and is generally considered the easiest to work with. It's also biodegradable and non-toxic, making it a good choice for kids. 

Ease of Use 

Some 3D printers are more user-friendly than others. Look for a printer with a simple interface and easy-to-use software. Some printers also come with pre-loaded designs that kids can print right away, which can be a great way to get them started. 

Safety Features 

Safety is always a concern when it comes to working with 3D printers. Look for a printer with safety features like automatic shut-off and a covered printing area. It's also a good idea to choose a printer with a filament sensor that will stop the printer if the filament runs out. 


Finally, consider the cost of the printer. You don't need to spend a lot of money to get a good 3D printer for kids. There are plenty of affordable options on the market that are perfect for beginners. Just make sure to choose a printer that has all the features you need and is within your budget. 

Getting Started with 3D Printing 

3D printing is an exciting and innovative technology that can be used to create a wide range of objects. Whether you're a kid or an adult, getting started with 3D printing can be a fun and rewarding experience. Here are a few tips to help you get started: 

Choose the Right 3D Printer 

The first step in getting started with 3D printing is to choose the right 3D printer. There are many different types of 3D printers available, ranging from inexpensive desktop models to high-end industrial machines. For kids, a desktop 3D printer is usually the best option, as it is affordable and easy to use. 

Learn the Basics of 3D Design 

Once you have your 3D printer, you'll need to learn the basics of 3D design. There are many different software programs available that can be used to create 3D designs, including Tinkercad, SketchUp, and Blender. These programs are user-friendly and can be used by kids as young as 8 years old. 

Find 3D Printing Projects for Kids 

There are many different 3D printing projects that are perfect for kids. Some popular projects include creating custom phone cases, designing and printing jewelry, and building 3D puzzles. There are also many online resources available that provide step-by-step instructions for a wide range of 3D printing projects. 

By following these tips and getting started with 3D printing, kids can learn valuable skills in design, engineering, and technology. With a little creativity and imagination, the possibilities are endless! 

3D Printing Projects 

3D printing is an exciting technology that is becoming increasingly accessible to children. With a 3D printer, kids can create anything they can imagine, from toys to jewelry to practical items for everyday use. Here are a few 3D printing projects that kids can try: 

Customized Phone Case 

Kids can design and 3D print their own phone cases using a 3D modeling software. They can create a case that is unique to their style and personality, and even add their name or favorite design elements. Once the design is complete, it can be printed using a 3D printer and fitted onto their phone. 

Miniature Figurines 

Kids can create miniature figurines of their favorite characters, animals, or objects using 3D printing. They can use a 3D modeling software to design the figurine and then print it using a 3D printer. This is a great project for kids who love to collect figurines or who enjoy playing with action figures. 


Kids can design and 3D print their own keychains using a 3D modeling software. They can create a keychain that is unique to their interests, such as a favorite animal or sports team. Once the design is complete, it can be printed using a 3D printer and attached to their keys. 

Overall, 3D printing is a fun and creative activity for kids to explore. With a little bit of guidance and access to a 3D printer, they can bring their ideas to life and create something truly unique. 

Creating Customized Key Chains 

Materials Needed 

  • 3D printer 
  • PLA filament 
  • Computer with 3D modeling software 
  • Keychain ring 

Step by Step Guide 

  1. Choose a 3D modeling software and create a new project. 
  1. Create a design for the keychain using the software. The design can be anything from a simple shape to a more complex design. 
  1. Export the design as an STL file. 
  1. Load the STL file into the 3D printer software and adjust the settings as necessary. 
  1. Load the PLA filament into the 3D printer and start the printing process. 
  1. Once the 3D printer has finished printing the keychain, remove it from the printer and remove any excess filament. 
  1. Attach the keychain ring to the top of the keychain. 

Creating customized keychains is a fun and easy project for kids to do with a 3D printer. With just a few materials and some basic knowledge of 3D modeling software, kids can create their own unique keychains that showcase their personality and interests. By following this step-by-step guide, kids can create their own customized keychains in no time. 

Designing Personalized Bookmarks 

Materials Needed 

To create personalized bookmarks, kids will need a few materials. These include: 

  • 3D printer 
  • Design software 
  • Filament (preferably PLA) 
  • Scissors 

Step by Step Guide 

  1. Designing the Bookmark: The first step is to design the bookmark. Kids can use design software such as Tinkercad or SketchUp to create their own unique bookmarks. They can add shapes, text, and images to make the bookmark truly their own. 
  1. Preparing the 3D Printer: Once the design is complete, it's time to prepare the 3D printer. Kids should load the filament into the printer and make sure it's set up correctly. 
  1. Printing the Bookmark: With the design and printer set up, it's time to print the bookmark. Kids should select the appropriate settings for the printer and let it do its work. 
  1. Removing the Bookmark: Once the bookmark is finished printing, it's important to carefully remove it from the printer. Kids should use scissors to cut off any excess filament and smooth out any rough edges. 
  1. Enjoying the Bookmark: With the bookmark complete, kids can now enjoy using it in their favorite books. They can even make multiple bookmarks to share with friends and family. 

Creating personalized bookmarks with a 3D printer is a fun and creative project for kids. With the right materials and a little bit of guidance, they can design and print their own unique bookmarks to use and share. 

Making 3D Printed Toys 

Materials Needed 

To make 3D printed toys, you will need the following materials: 

  • 3D printer 
  • Filament 
  • Computer with 3D modeling software 
  • Sandpaper (optional) 
  • Paint (optional) 

Step by Step Guide 

  1. Choose a toy to make: The first step in making a 3D printed toy is to choose the toy you want to make. It can be anything from a toy car to a dollhouse. 
  1. Design the toy: Once you have decided on the toy, you need to create a 3D model of it using a 3D modeling software. You can either design the toy yourself or download a pre-made design from the internet. 
  1. Print the toy: After you have created the 3D model, you need to send it to your 3D printer. The printer will then create the toy layer by layer using the filament. 
  1. Sand and paint (optional): Once the toy is printed, you can sand it down to remove any rough edges. You can also paint the toy to give it a more finished look. 

With these steps, you can easily make 3D printed toys for kids. It is a fun and educational activity that encourages creativity and imagination. 

Advanced 3D Printing Projects 

For kids who have already mastered the basics of 3D printing, there are many advanced projects that they can tackle. These projects will challenge their skills and creativity, and help them develop a deeper understanding of the technology. 

  1. Mechanical Toys

Mechanical toys are a great way to introduce kids to the principles of engineering and mechanics. These toys can be 3D printed, and they often involve moving parts that work together to create motion. Some examples of mechanical toys that kids can 3D print include wind-up cars, robots, and catapults. 

  1. Customized Jewelry

3D printing can be used to create unique and customized jewelry pieces. Kids can design their own jewelry using software like Tinkercad, and then 3D print their designs using a variety of materials such as plastic, metal, or wood. Some popular jewelry items that can be 3D printed include earrings, bracelets, and necklaces. 

  1. Architectural Models

3D printing can also be used to create detailed architectural models. Kids can design and print models of buildings, bridges, and other structures. These models can be used for school projects, or simply as a fun way to explore architecture and design. 

Overall, advanced 3D printing projects offer a great opportunity for kids to develop their skills and creativity. By taking on more challenging projects, they can push themselves to learn more about the technology and its applications. 

Building a Miniature House 

Materials Needed 

To build a miniature house, kids will need the following materials: 




1 large box 


1 bottle 


1 pair 


1 piece 

Step by Step Guide 

  1. First, cut out the cardboard pieces for the house. Cut out two rectangular pieces for the sides, a square for the base, and a triangle for the roof. 
  1. Use the ruler to measure and mark where the doors and windows will go. Cut them out with the scissors. 
  1. Fold the sides and roof along the marked lines to create the shape of the house. 
  1. Apply glue to the edges of the cardboard and press them together to form the house. 
  1. Allow the glue to dry completely. 
  1. Decorate the house with paint, markers, or other craft materials. 

Building a miniature house is a fun and creative project for kids to enjoy. With just a few materials and some imagination, they can create a unique and personalized miniature home. 

Creating a Solar System Model 

Materials Needed 

To create a solar system model, kids will need the following materials: 



Styrofoam balls 



Blue, black, yellow, orange, white 



Wooden skewers 



1 bottle 


1 sheet 


1 pair 

Step by Step Guide 

  1. Start by painting the Styrofoam balls according to the color of each planet. For example, paint the largest ball yellow to represent the sun, paint the smallest ball gray to represent Pluto, and so on. 
  1. Once the paint has dried, use the wooden skewers to attach the balls to the cardboard sheet in the correct order to create a model of the solar system. 
  1. Use glue to attach the balls to the skewers and cardboard, making sure to leave enough space between each planet. 
  1. For added detail, use paint or markers to draw the planets' rings or moons. 
  1. Once the glue has dried, the solar system model is complete! 

Creating a solar system model is a fun and educational project that allows kids to learn about the planets and their order in the solar system. By following these simple steps and using the right materials, kids can create a beautiful and accurate model that they can proudly display. 

Troubleshooting Common Problems 

When working with 3D printing, it's common to run into issues that can hinder the printing process. Here are some of the most common problems and their solutions: 

Clogged Nozzle 

If the nozzle becomes clogged, it can cause the printer to stop extruding filament. To fix this issue, the user should remove the filament and heat the nozzle to the recommended temperature. Once heated, the user can use a small needle to clear the clog. 


Warping occurs when the base of the print lifts off the printing bed, causing the print to fail. To avoid this issue, it's important to ensure that the printing bed is level and that the first layer of the print is properly adhered to the bed. Increasing the bed temperature and using a raft or brim can also help prevent warping. 

Layer Shifting 

Layer shifting can happen when the printer's motors lose their position, causing the layers of the print to shift. This can be caused by loose belts or pulleys, or by objects obstructing the printer's movement. To fix this issue, the user should check the printer's belts and pulleys for looseness and ensure that the printer's movement is unobstructed. 

Filament Jams 

Filament jams can occur when the filament gets stuck in the extruder or the nozzle. This can be caused by a variety of issues, such as a dirty nozzle or a poorly calibrated extruder. To fix this issue, the user should clean the nozzle and extruder, and ensure that the extruder is properly calibrated. 

By understanding these common problems and their solutions, users can troubleshoot issues that may arise while 3D printing. 

Maintaining Your 3D Printer 

To ensure that your 3D printer works smoothly and produces high-quality prints, it's important to maintain it regularly. Here are a few tips to keep your printer in good shape: 

Clean the Printer Regularly 

Dust and debris can accumulate inside the printer and cause clogs or other issues. To prevent this, clean your printer regularly by wiping down the exterior with a soft cloth and using compressed air to blow out any dust or debris that may have gotten inside. 

Check the Filament 

Before starting a print, make sure to check the filament to ensure that it's not tangled or damaged. If the filament is tangled, it can cause clogs or other issues during the print. If it's damaged, it may not feed properly into the printer. 

Level the Build Plate 

A level build plate is essential for a successful print. Check the level of the build plate before each print and adjust it if necessary. A good way to check the level is to use a piece of paper. Slide the paper between the nozzle and the build plate and adjust the level until there is a slight resistance when pulling the paper out. 

Replace Worn Parts 

Over time, parts of the printer may wear out and need to be replaced. Common parts that may need replacing include the nozzle, the build plate, and the belts. Check these parts regularly and replace them as needed to ensure that your printer continues to produce high-quality prints. 

By following these simple tips, you can keep your 3D printer in good shape and ensure that it continues to produce high-quality prints for years to come. 


In conclusion, 3D printing projects can be an exciting and engaging way for kids to learn about design, engineering, and technology. By providing them with access to these tools, parents and educators can help foster creativity and problem-solving skills in children of all ages. 

Whether it's creating a custom toy or building a model of their favorite animal, 3D printing projects offer endless possibilities for young minds to explore. With the right guidance and resources, kids can gain valuable experience with design software, hardware, and materials, all while having fun and learning new skills. 

Overall, 3D printing is an exciting and rapidly growing field, with new applications and innovations emerging all the time. By introducing kids to this technology at an early age, we can help prepare them for the future and inspire them to pursue careers in STEM fields. 


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