Some milling operations require an optimal finish to be machined on a horizontal face with and endmill or facemill, eg pad milling or pocketing.
There is a setting on the milling process, Z Increment (Finishing Pass), which can be set to explicitly control
•how deep the final Z pass is, and...
•activate Finishing Settings on the final pass
In the example above, a finishing increment of 1mm has been selected (Z Mode active)
For this slot interpolation using Ramped Leadins and layers, the codes produced are:
(First Pass)
M32Z0.
G1Y-30.Z-7.
G3X20.I10.
G1Y30.
G3X-10.Y10.I-10.
X-12.5Y-12.5J-12.5
G1Y-50.
G3X25.I12.5
G1Y50.
G3X-12.5Y12.5I-12.5
M3
G0X-10.Y-10.
(Second pass)
M32Z-7.
G1Y-30.Z-14.
G3X20.I10.
G1Y30.
G3X-10.Y10.I-10.
X-12.5Y-12.5J-12.5
G1Y-50.
G3X25.I12.5
G1Y50.
G3X-12.5Y12.5I-12.5
M3
G0X-10.Y-10.
(Third pass)
M32Z-14.
G1Y-30.Z-21.
G3X20.I10.
G1Y30.
G3X-10.Y10.I-10.
X-12.5Y-12.5J-12.5
G1Y-50.
G3X25.I12.5
G1Y50.
G3X-12.5Y12.5I-12.5
M3
G0X-10.Y-10.
(Finishing Pass)
M71
M32Z-21.
G1Y-30.Z-22.
G3X20.I10.
G1Y30.
G3X-10.Y10.I-10.
X-12.5Y-12.5J-12.5
G1Y-50.
G3X25.I12.5
G1Y50.
G3X-12.5Y12.5I-12.5
M3
When using helical (ramped) milling, the last two passes both get Finishing Settings applied, once for the path circuit descending by the Finishing Depth Increment, and once for the final height-static pass:
An internal Hole machined using Helical (ramped) interpolation, 2mm Finishing Pass Depth Increment
Note 2 passes with finishing settings:
M32D-0.01
G3X-64.8299Y-30.8536I-16.9881J-47.8417D2.4925
X95.6835Y-33.9763I47.8418J-16.9881D7.4975
X-30.8536Y64.8299I-47.8417J16.9882D10.
X-64.8299Y-30.8536I-16.9881J-47.8417D12.5
X95.6835Y-33.9763I47.8418J-16.9881D17.5
X-30.8536Y64.8299I-47.8417J16.9882D20.
(Finishing)
M71
G3X-64.8299Y-30.8536I-16.9881J-47.8417D20.5
X95.6835Y-33.9763I47.8418J-16.9881D21.5
X-30.8536Y64.8299I-47.8417J16.9882D22.
(Finishing)
M71
G3X-64.8299Y-30.8536I-16.9881J-47.8417D22.
X95.6835Y-33.9763I47.8418J-16.9881D22.
X-30.8536Y64.8299I-47.8417J16.9882D22.
M3