My students actually printed in 3D

Students watching Pinkie Pie at work

Since I first saw a 3D printer demonstration, I've been thinking about how to put that technology to use in my classroom. Luckily I was able to work out a partnership with my local library to make it happen.

Tinkercad was an ideal design platform

We kicked off our project with a visit from Nick Madsen, the teen services librarian, and his 3D printer, Pinkie Pie. He printed a mustache for our class while explaining the basic idea behind 3D printing: "It's like a computer-controlled hot glue gun that shoots out plastic instead of glue." My students were amazed, as was my principal, custodian, and many other staff members who poked their heads in the room to see 3D printing in person.

My 4th grade math class used Tinkercad to create their own 3D printed nametags. I was really impressed with how easily they could create with Tinkercad: after spending two class periods on tutorials, students were able to make their own designs in under an hour. Plus, Tinkercad worked flawlessly on Chromebooks. I gave my students some parameters on size, but the designs were entirely up to them. I also used the design process to sneak in some instruction on perimeter and area.

I uploaded using the library's Skyforge site

The finished nametags were great! Nearly all my students were happy with the way their designs turned out. I wish we had more time to use the finished products to do some measuring and scaling work, but testing schedules and end of the year field trips made that impossible.

I definitely want to do more with 3D printing next year and integrate it into more lessons. I'll start by seeking some grant money to fund a printer at our school. Our art teacher has a lot of ideas for it, too, so we'll probably collaborate on a way to bring 3D printing to our school.

The finished product

Do you have any recommendations when it comes to 3D printing equipment? Or maybe you have an idea to share on using 3D printing with elementary students. Please share your ideas in the comments below or contact me on Twitter. And I'll keep you updated as I continue to experiment and refine...

What can 3D printing do for my classroom?

This fall, I learned one of our local libraries has begun to offer 3D printing. I immediately wanted to find ways for my students to take advantage of this local resource. In late November, I visited the library to see it in action. I was hoping to print a bowtie, but we just couldn't get the printer's software to process the file. I settled on a small picture frame instead.

I'm planning to use the video and frame as part of a 3-Act Task: figuring the amount of time or filament needed to make the frame. I'm also going to work up a design challenge for some of my math students challenging them to create a nameplate in Tinkercad. The library will print the nameplates from the student designs.

As amazing and engaging as I think the library's 3D printer is, I didn't feel like a 3D printer had a place at our school. The library's printer does great work, but appeared to need a lot of attention. The printing plate needs to warm up and cool down between each print. Printed objects need to be scraped off the plexiglass with a razor. It seemed like each 3D print would take more preparation and supervision than we have time for at school.

The CubePro C is my dream machine!
Image from 3D Systems

After bringing up 3D printing on my Facebook wall, Clay Hanson, a friend in engineering shared a video with me, and gave me this list of requirements for a great 3D printer:

1. Print volume that can print a basketball. (Most things you will print won't be bigger than that anyway)
2. Heated build chamber. ABS shrinks as it cools. A heated chamber lessens this.
3. ability to print multiple materials: PLA, ABS, PVA, Nylon, rubber material, metal filled PLA
4. multi head for support material and multi colors.
5. 50 microns or smaller resolution.
6. Good software. Don't have a recommendation
7. non proprietary filament. Proprietary filament is expensive and pointless. It's all the same.

It looks like there are some 3D printers that could provide an incredible experience for students. What could my students do with it in math and reading classes? How do I get one for my school? For now, I'll partner with the library for printing, but who knows what the future might hold? If you have ideas or experience with 3D printers that might help me, please tell me about it in the comments. And I'll keep you updated as I continue to experiment and refine...