[NovaSpirit] asserts that Freecad is simple, and provides a simple walkthrough to create a part in the video below. If this were riding a bike, this tutorial would be akin to watching someone ride ...

To make the Optics Design Workbench available in FreeCAD, install it using FreeCAD's built in addon manager. Sometimes the latest version on github is not immediately recognized by the addon manger.

FreeCAD A3 Size TitleBlock Usage Copy this code to FreeCAD python console. Change various strings accordingly.