This is part of the series of 30 exercises developed during the 3D4KIDS program. One of the aims of this Erasmus+ program is to improve the knowledge of teachers regarding the 3d printing technology by developing some specific training materials. More info in the website: https://www.3d4kids.eu/ The lesson is about designing and printing 3D columns in classical order. The main goal is to understand the basic parts of Doric, Ionic and Corinthian columns and the differences between them.