Description : Calibration and tuning your CNC machine will help you achieve consistent and reliable results. There are three primary procedures we recommend after initial machine assembly. Source files available on our instruction page: http://www.cncrouterparts.com/leveling-squaring-and-tramming-your-cnc-machine-p-438.html In this video we cover: Table Leveling: adjusts leveling feet so that your machine's two table axes (Y) move along the same nominal XY plane. Gantry Auto Squaring Calibration: ensures that your machine's table axes (Y) are coordinated, perpendicular to the machine gantry axis (X). Spindle/Router Tramming: verifies that your spindle/tool is making cuts square to the XY plane (primarily concerned with Left/Right adjustment).