> For the complete documentation index, see [llms.txt](https://education.printm3d.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://education.printm3d.com/lesson-plans/9-12/torsion.md).

# Torsion

Subject Area: Engineering

Learning Objectives: Students will learn about the torsion of different types of materials. 

Materials Needed: One computer, one Micro or Micro+ 3D printer, at least three spools of 3D Ink in different materials and weights per 2-5 students. 

Brief Description: Students will print out test models in different materials and measure their torsion. 

To Prepare: Students will need a computer that has the M3D software on it. We recommend one printer per every 2-5 students. The Micro or Micro+ 3D printer will need to be plugged into both the wall and the computer. Each printer will need to have a spool of 3D Ink feeding into the external port. A spool holder is also recommended. 

If you need assistance with any of the above please see our guides at support.printm3d.com. 

Lesson Plan: 

1\. Divide students into small groups. \
2\. Students will go online to <https://support.printm3d.com/145216-3D-Models> and download the torsion test models. \
3\. Each group should print one torsion model in at least three different types of materials. \
4\. Once they have their models printed, students should add weight to one side and measure how much weight it takes to rotate the model 1, 2 & 3mm.&#x20;