Groove simple/computed

You need to fill in the Groove Simple/Computed format whenever you specify the Use simple canned cycle or computed cycle option on the Strategy tab of the Turning Groove feature.

Simple canned cycles

The simple canned cycle can be turned on by selecting the Simple radio button in the Cycles Information dialog of XBUILD (CNC-Info > Cycles).

If it's on, then any rectangular simple Groove feature (straight walls and no chamfer or bottom radius) is posted out as a single line of code using the Groove Simple/Computed format.

An example of this format can be found in fan6ti.cnc post, which is shipped with FeatureCAM.

For example:

N<SEQ> G75 X<X-COORD>Z<Z-COORD>I<DEPTH>K<STEPOVER>F<FEED><EOB>

If simple canned cycles are being used (that is the simple canned cycle is turned on in the Cycles Information dialog, and you've filled in the Groove Simple/Computed format), then the system computes the diagonal bottom point of the Groove slot as the target point.

Note: FeatureCAM only supports canned cycles that use this computed target point. If a canned cycle program format is required, then the values of the <X-COORD> and <Z-COORD> reserved words (see the example below) are the X and Z coordinates of the target points.

Computed style of grooving

If you are using computed style of Groove, the Groove Simple/Computed format must be (at the least) identical to the Linear Move format. Other parameters can be used (see the example below).

For example, if you need a dwell, you should select the Simple radio button in the Cycles Information dialog of XBUILD (CNC-Info > Cycles), and then fill in the Groove Simple/Computed format with something like the following:

{N<SEQ>}{<MOTION>}{X<X-COORD>}{Z<Z-COORD>}{F<FEED>}<EOB>
{N<SEQ>} GO4 F<DWELL><EOB>