ACU-RITE CNC 3500i - Manual (Page 273)

ACU-RITE 3500i 247
7.
4 Sub-pr
ogr
ams
Pocket/Island example 4
This example shows a rectangular pocket with an island in the center.
The island is in the form of a diamond. This example is similar to
Example 1 but uses the coarse tool feature by first using a roughing
tool and then a finer tool. The initial roughing tool has 1" diameter. A
subsequent finer roughing tool is a 1/4” diameter end mill. Using the
coarse tool feature usually results in reduced machining time. The
finer tool only machines the material that the coarser tool cannot
machine.