3D Printer Training Guide Required reading: http://reprap.org/wiki/Calibration http://reprap.org/wiki/Triffid_Hunter's_Calibration_Guide http://richrap.blogspot.ca/2012/01/slic3r-is-nicer-part-1-settings-and.html http://richrap.blogspot.ca/2012/01/slic3r-is-nicer-part-2-filament-and.html Suggested reading: http://reprap.org/wiki/DeveloperBookshelf