cnc programming for out contour of a part

Based on the first cnc macro example, now we are going to use D10mm cutter machine a contour of a part. And set first radius compensation as 5mm.

cnc macro programming for milling

work zero is set on the center of the top of the workpiece, program as next:

G90G54G00X0Y0Z100

M3S2500

G0X-40Y-40

#1=-1                set first level Z-1

N10 G0Z[#1]          the shadow part of the program finish the work at the level at Z[#1]

G0G41X-21D01

G1Y21F1000

  X21

  Y-21

  X-21

G0G40Y-40

#1=#1-1                          decrease the deep of the level

IF [#1GE-5] GOTO 10    estimate if all the level have been machined, if Z>=-5, go back to N10, if not, execute the next block

G0Z100

M5

M30