LeoCAD: The Free 3D Modeling Software Inspired by LEGO

LeoCAD is a program for beginners and those looking to discover 3D modeling. Inspired by the principle of building with LEGO blocks, design in this program works using similar digital blocks. The interface is intuitive and from the very first attempts, users can create designs with ease. As LeoCAD is simple to get to grips with, it’s a good option for anyone looking for slicing software for educational purposes. Although its interface is intuitive, it has a wide variety of features that more advanced users will be able to use to create more sophisticated models. What’s more, the free, open-source software allows the creation and modeling of relatively large figures, requiring numerous parts.

LeoCAD first appeared in 1997 and has been regularly updated over the years. At the time of writing, the current version is 23.03, released in 2023. The software is easy to download and is available for Windows, Linux and macOS operating systems. Furthermore, the official website offers clear tutorials to guide you through the process. Before diving into LeoCAD’s features, it’s important to point out that it’s not software belonging to the LEGO group, but a separate brand inspired by the toy principle. Although LEGO had developed CAD software, Lego Digital Designer, this was discontinued in 2019.

Features of the Software

Starting with the appearance of the graphic interface, all 3D models are created on a plate with the characteristic assembly circles. On the right-hand side of the screen, users will find the library with available parts, which they simply drag into the work area to start creating their designs. In the same section, it’s possible to preview parts and choose colors, although these can be changed at any time. There are also other windows with additional tools such as the properties of each part or the Timeline, which will be explained later. The top section is dedicated to menus and actions. As you might guess, this is an interface with which most users can quickly familiarize themselves, ideal for beginners or children.