Dune 3D is a free, open-source parametric 3D CAD application designed for both novice and experienced users. It allows for comprehensive sketching and constraining in both 2D and 3D environments, making it suitable for a wide range of modeling projects. The software supports the addition of chamfers and fillets, enhancing the modeling capabilities and providing users with the tools necessary to create intricate designs.

In addition to its robust modeling features, Dune 3D enables users to import STEP models for referencing, which is crucial for projects that require integration with existing designs. Furthermore, it supports the export of high-quality STEP and STL files, making it easier to share and utilize models across different platforms. Dune 3D is compatible with Windows and Linux, built on a modern codebase that ensures reliability and performance.