How to find 3D models of LEGO parts in a useful format for CAD
I'm using Fusion 360 for making my projects. There are various software for building digital lego blocks - Mecabricks, Lego Digital Designer, Studio 2.0 and LDraw. In these softwares it´s possible to export parts in obj och stl format. But the models are made out of mesh triangels and are not ideal to use in a CAD.
Is it possible to attain Lego parts in a better format somewhere? There are some parts to download here att grabcad of course, but not all are available here.