This is a Python macro workbench used to integrate CuraEngine into FreeCAD
It is a work in progress. Feedback welcome.
Discussion thread here
The easiest way to install is to clone into ~/.FreeCAD/Mod
cd ~/.FreeCAD/Mod
git clone https://github.com/cblt2l/FreeCAD-CuraEngine-Plugin.git
Then restart FreeCAD. An entry for '3D Printing' should be available in the Workbench dropdown menu.