1.3 Basic Explanation Of G & M Codes - Basic Mill Operator

The basic milling machine is capable of moving in how many directions? - ANS 3 directions or axes When the machine moves, we describe the machine as moving in a specific axis. What direction is the X-axis movement? - ANS Side to side The Machine Coordinate System defines where the axes can move, and how far they have moved. - ANS True The 3 axes are X, Y, and Z. When all 3 axes are at 0.000 in the Machine Coordinate System, we call that position: - ANS The Home Position When the table is positioned with both X and Y axes at the Zero position, table movement in either the X or the Y axis is in the positive direction. - ANS False For the Z axis, the Zero position is with the spindle all the way up, or at the top of travel. When the spindle is moved down, toward the table, the machine coordinate system for the Z axis gets more negative. - ANS True The Work Coordinate System tells the machine where the workpiece and the tools are in relation to the Machine Coordinate System: - ANS True The work offsets in the machine define: - ANS The important starting points for the workpiece, as they relate to the Machine Coordinate System When establishing work offsets, it is important to know the exact location of the cutting tool tip in relation to the face of the spindle. The length between the tip of the tool and the face of the spindle is called: - ANS Tool coordinate or tool offset