Acu-Rite CNC 3500i User Manual

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10 CAM: Programming
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Drilling Cycle:
The Drilling tool path defines a drill cycle type, location, and 
parameters for drilling. Certain parameters apply only to specific 
cycles. These parameters appear as needed based on the selected 
Drill Cycle.
The following describes the various Drill Cycles available.
Drill Cycle: Basic 
A basic drilling cycle is generally used for center drilling or hole 
drilling that does not require a pecking motion. It feeds from the 
Start Height to the specified Z Depth at a given Feed, then rapids to 
the Return Height.
Drill Cycle: Counterbore 
A counter bore cycle is generally used for counter boring. It feeds 
from the Start Height to Z Depth, dwells for specified time, then 
rapids to the Return Height.
Drill Cycle: Peck
A peck drilling cycle is generally used for peck drilling relatively 
shallow holes. The peck drilling cycle feeds from the Start Height to 
the first peck depth (calculated so that all pecks are equal and do not 
exceed the maximum peck distance programmed in Peck). Then 
rapid retracts to Start Height (to clear chip), rapids down to previous 
depth less .02", and continues this loop until it reaches the Z Depth. 
It then rapid retracts to the Return Height.
Drill Cycle: Tapping
A tapping cycle is used for tapping holes. During a tapping cycle the 
tool feeds from the Start Height to Z depth; the spindle stops and 
reverses; the tool feeds to the Return Height; and the spindle stops 
and reverses again.
Drill Cycle: Boring Bidirectional
A bidirectional boring cycle is generally used to make a pass in each 
direction on a bore or to tap with a self-reversing tapping head. It 
feeds from the Start Height to Z depth, and then feeds back to the 
Return Height.