Woodworking: http://www.instructables.com/class/Woodworking-Class/
3D Printing: http://www.instructables.com/class/3D-Printing-Class/
Pasta Making: http://www.instructables.com/class/Pasta-Making-Class/
Seems that you can enroll for free, but can only access the classes for 3 months.
Thanks, I, finally, get a proper lesson for free :). After making pasta for a couple of years