OpenSCAD

The Programmers Solid 3D CAD Modeller

OpenSCAD Discussion, talk with Humans: #openscad (on IRC network libera.chat)
OpenSCAD User Manual and Tutorial on Wikibooks
OpenSCAD on Mastodon and Bluesky
Find OpenSCAD Designs on Printables and Thingiverse
Prototype: OpenSCAD Playground directly in your WebBrowser
OpenSCAD Discussion, talk with Humans: #openscad (on IRC network libera.chat)

OpenSCAD is software for creating solid 3D CAD objects.

It is free software and available for Linux/UNIX, MS Windows and Mac OS X.