# Bridge Fail Subject Area: Engineering Learning Objectives: Students will learn about bridge structure and what it takes to build a sturdy bridge. Materials Needed: One computer, CAD software one Micro or Micro+ 3D printer, at least one 1,000ft spool of 3D Ink per 2-5 students, and weights. Brief Description: Students will design and 3D print bridges then compete to see which one holds the most weight. 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\. Either individually or in small groups, students will design a bridge in CAD. \ 2\. Students should print their bridges. \ 3\. After each bridge has been printed, students should compete to see which bridge can hold the most weight. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://education.printm3d.com/lesson-plans/9-12/bridge-fail.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.