<< Click to Display Table of Contents >> Navigation:  MILL Module > Creating 4 Axis Operations > R-Level Roughing, 4 Axis

Here you can perform roughing in continuous mode.  Multiple levels can be defined and the tool works its way from the outermost level to the innermost level.  This is similar to the 3 Axis Horizontal Roughing except that the levels in this case are concentric to the axis of rotation.  

Both part and stock geometry are used to determine the regions that can be safely machined. Three types of cutting patterns are available: Linear (parallel, zigzag lines), Stock Offset (spiral pattern within stock and part), and Part Offset (spiral pattern outside the stock and outside the part). The table rotation varies constantly as the tool is removing material.

See also: What Tool Types are Supported by this Operation?