This is the fourth toolkit from the Ultimaker Academy. It is a toolkit for continuing professional development for teachers.With this toolkit we want to empower makers to turn their ideas and creativity into reality. This toolkit is still under development. With the publication of this open beta projects, we would like to encourage our community to give us feedback to improve the projects and the toolkit. We tested the first projects with a small group of schoolsNow it is time to ask feedback from you! If you have any questions or comments, please contact Ronald Scheer. Ronald is responsible for Ultimaker Education.The task for the students is to design a ventilation system. In this toolkit there will be information about what to do when you are teaching this project.This project is made in coöperation with Autodesk Sweden, TPI Polytechnics and Ronald Scheerhttps://www.youmagine.com/users/ronaldYou can dowload the .stl files via this link:https://www.youmagine.com/designs/pulley