Course Content
2. How to get started with 3D Printing?
In this section we will cover an introduction to 3D printing technology and you will get started with your first 3D print. 3D printing is an additive manufacturing technology that allows for the creation of physical objects from digital designs. It works by layering material, typically plastic, to build up a three-dimensional object. The process starts with creating a 3D model using computer-aided design (CAD) software, using a slicer-software to slice the 3D-model into its individual layers and then sending the file to the 3D printer where it is brought to life through the layering process, which is similar to using a hot glue gun. This technology is about to revolutionize the way products are designed and manufactured, providing new opportunities for innovation and customization. It also offers many benefits, including faster prototyping, reduced waste, and the ability to produce complex and intricate designs that would be difficult or impossible to produce through traditional manufacturing methods. You will learn the basics about this in this lesson.
3. Why is sustainability important?
In this section we will deep dive into the topic of sustainability. Our first focus is on why is sustainability important at all. After that we look at different ways in which 3D printing itself can contribute to a more sustainable future.
4. 3D Printing is not rocket science
In this section you will learn about how 3D printing developed over the past years. After completion you will also know different additive manufacturing technologies.
5. How to include sustainability in your 3D-printing process?
6.2. How to get a 3D model in other ways?
In this topic we will cover other ways to get a 3D model.
6.3. How to create a 3D model with sustainability in mind?
8. How to 3D print?
10. Your Sustainable 3D-Printing Project
Resource-efficient 3D Printing
About Lesson

In the first part you got introduced to 3D printing, but of course you can best learn about it when you try it. So now it’s time to explore it hands-on. 

3D Printing Process

Watch this video carefully, where Nele goes through the steps of a first 3D print. Afterwards you will try it yourself.


It’s your turn to try out 3D printing. Follow the steps from the video (you can also find them below) and print your own CityGo- Shoppingcart-keyring.

  • download and install the software Ultimaker Cura 5.2. from here:
  • download the file from the exercise files section on the top right
  • (open it in 3D viewer)
  • open the file citygo-keychain.stl in Ultimaker Cura
  • Add a printer (in our case Ultimaker Original+)
  • Choose PLA as the material
  • Choose the normal printing profile
  • Click “Slice” to get an approximation of print time and used material
  • Move to preview mode, to get a preview of the print
  • Save the gcode to the external drive (SD-card or USB-Stick)
  • Go to the 3D printer, insert the SD Card and click “Print from SD-Card”
  • 3D Print


Let’s start a conversation on Discord

Share an image of your 3D print in #-proud-of-this!

  • What was easy?
  • Did you have some problems?
  • Can we help you with something?
Exercise Files
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