CYCLE BORE8(212) - G88 drilling cycle
Kept for compatibility. CYCLE is retained only for compatibility with older postprocessors. Current versions of the CAM system generate the extended cycle command EXTCYCLE instead: it offers more capabilities and lets the CAM system fully simulate all of the cycle's nested motions, which CYCLE does not. Output of CYCLE can still be turned on in the CAM system settings, but this is not recommended.
G88 boring canned cycle performs rapid approach to the safe level, work feedrate boring with dwell at the hole depth level, spindle stop at the hole depth level and manual retract to the safe plane level.
G88 Cycle includes:
- Rapid approach to the Z safe level.
- Work feedrate travel to the Z min level.
- Dwell.
- Spindle stop.
- Manual retract to the Safe plane level.
- Restore spindle rotation direction and speed.
Command
CYCLE BORE8(212), A a, MMPM(315), N nm, F f, P p, DWELL(279) h, T t
or
CYCLE BORE8(212), A a, MMPR(316), M nm, F f, P p, DWELL(279) h, T t
Parameters
| Parameter | CLD array | CLD name | Description |
|---|---|---|---|
| BORE8(212) | CLD[1] | CLD.Type | Cycle type 212 (BORE8). |
| a | CLD[2] | CLD.A | Hole depth in current measure units (mm or inches). |
| MMPM(315) MMPR(316) |
CLD[3] | CLD.MMPM | Feedrate measure units: 315 (MMPM) – mm per minute (inches per minute), 316 (MMPR) – mm per revolution (inches per revolution). |
| nm | CLD[4] | CLD.NM | Work feedrate value. |
| f | CLD[5] | CLD.F | Safe level. |
| CLD[6] CLD[7] |
Reserved. | ||
| p | CLD[8] | CLD.P | Safe plane level. |
| DWELL | CLD[9] | CLD.DWELL | Dwell time keyword. |
| h | CLD[10] | CLD.H | Dwell time in seconds. |
| t | CLD[11] | CLD.Top | Hole top level. |
Access from .NET
Delivered through the OnCycle handler (dispatch on the cycle type in cmd/cld[1]):
public override void OnCycle(ICLDCycleCommand cmd, CLDArray cld)
See Hole machining cycles (CYCLE) for the common .NET model.