Hi Neshen,

Commenting post 328: Hi Neshen, Yes it is possible, although it can be difficult when sweeping profiles. There is a "helix" option in Part -> Create Primitives. I'm afraid there is no real tutorial about that, but these two topics on the FreeCAD forum should help:

http://sourceforge.net/apps/phpbb/free-cad/viewtopic.php?f=3&t=4378&hilit=screw+helix

http://sourceforge.net/apps/phpbb/free-cad/viewtopic.php?f=3&t=4154&hilit=screw+helix