SETTING AND DISPLAY OF DATA
2. TOOL DATA AND TOOLING
(1)When the turret is set at the rear side.
In this case, select or as the drawing format in order to clearly
identify positive and negative value of tool data.
(a) Tool figure
Input the dimensions, referring to the following tool figures,
irrespective of whether the outer diameter cutting or inner diameter
cutting is done. Assume that a tool was placed on paper with its
setting face to an NC lathe turned upward, regardless of the front
face or rear face of the cutting tool.
The “AC” plus direction is counterclockwise around the major
cutting edge as the center, while the “AN” plus direction is
clockwise around the major cutting edge as the center. (The bold
line in the figure shows the major cutting edge.)
TOOL FIGURE DATA
General Lathe Setting