3Doodler pens are handheld 3D printing pens that allow users to create three-dimensional objects by drawing in the air with plastic filament. The company offers three different pens that each have unique features and are useful for different learning experiences:

1. 3Doodler Start: The 3Doodler Start is designed for young children (ages 6 and up) and is the safest and easiest 3D printing pen to use. It uses low-heat, BPA-free plastic that cools quickly, making it safe for children to touch and handle. The pen is wireless and rechargeable, allowing for more flexibility in use. In a public library setting, the 3Doodler Start can be used in workshops or activities to teach children about 3D printing, design, and creative problem-solving.
2. 3Doodler Create+: The 3Doodler Create+ is designed for older children and adults and is a more advanced 3D printing pen. It has a temperature control system that allows for the use of a wider range of materials and colors, including wood, copper, and nylon. The pen is also wireless and rechargeable, allowing for more flexibility in use. In a public library setting, the 3Doodler Create+ can be used in workshops or activities to teach older children and adults about 3D printing, design, and creative problem-solving.
3. 3Doodler Pro: The 3Doodler Pro is the most advanced 3D printing pen offered by 3Doodler and is designed for professional use. It has a wide range of temperature and speed settings that allow for the use of a wide range of materials, including metal and carbon fiber. The pen is also customizable, with interchangeable nozzles that allow for different types of filament and precision in printing. In a public library setting, the 3Doodler Pro can be used in workshops or activities to teach advanced 3D printing and design skills to professionals, educators, or advanced students.

Overall, the 3Doodler pens offer a range of possibilities for learning and engagement in a library setting. They can be used in programming, design, and STEM activities, as well as creative expression workshops. The library can work with educators or specialists to develop programming or curriculum around 3Doodler pens, and can tailor the activities to meet the needs and interests of the library's patrons.