Hole canned cycles in XBUILD

For milling posts, hole drilling canned cycles are used based on the existence of the cycles G-codes. If FeatureCAM requests a canned cycle for a particular cycle, and the G-code is undefined, an alternate cycle is searched for. If the alternate also does not exist, then a computed cycle is used.

The table below lists the alternate canned cycles. For example, if FeatureCAM is trying to output a drill canned cycle, but there is no drill canned cycle defined in the post, it looks to see if a spotface (its alternative cycle) exists. If it does, a spotface cycle is used. If a spotface cycle is not defined, then a computed drilling cycle is output.

Cycle	Alternate cycle
Drill	Spotface
Spotface	Drill
Deep hole	Chip break
Tap	No alternate
Chip break	Deep hole
Bore FDF	Bore FF
Bore FF	Bore FDF
Bore FSR	Bore FF
Bore No-drag	Bore FF

If you do not want to output any drilling canned cycles, just blank out all the cycles in the NC Codes dialog in XBUILD.

Note: For computed cycles to work correctly, the Spindle and Dwell formats and the Spindle codes in XBUILD have to be completed. The <SPINDLE> reserved word must also be added to the Linear format.

Example Spindle format:

{N<SEQ>}<SPINDLE><EOB>

Example Dwell format:

{N<SEQ>}G4 <DWELL><EOB>

Example Linear format:

{N<SEQ>}{<MOTION>}{<COMP-STAT>}

{X<X-COORD>}{Y<Y-COORD>}{Z<Z-COORD>}

{F<FEED>}{<SPINDLE>}<EOB>

Also refer to Include first canned cycle move in macro in the General Information dialog.