Table of Contents

Class DrillingCycleSyntax

Namespace
Hi.NcParsers.LogicSyntaxs
Assembly
HiMech.dll

G81/G82 drilling cycle (rapid retract). Supports modal repetition. G82 covers G81 — the only difference is an optional dwell (P) at the bottom.

Cycle sequence:

  1. Rapid to init position (target XY, previous Z)
  2. Rapid from init to R-point
  3. Feed from R-point to bottom Z
  4. [G82 only] Dwell P seconds at bottom
  5. Rapid from bottom to final (G98 → init Z, G99 → R)

Reads absolute coordinates from the cycle section, which is resolved by CannedCycleResolveSyntax (modal repetition, G91 conversion, missing-axis fallback) before this syntax runs. Must be placed after CannedCycleResolveSyntax and before IncrementalResolveSyntax in the syntax chain. 

public class DrillingCycleSyntax : ISituNcSyntax, INcSyntax, IMakeXmlSource
Inheritance
DrillingCycleSyntax
Implements
Inherited Members
Extension Methods

Examples

All cases below pre-populate CannedCycle as CannedCycleResolveSyntax would have written it (term, return mode, snapshot params) and leave the resolved cycle sub-section in Parsing for this syntax to consume. There is no #Previous:, so GetLastProgramXyz returns Vec3d.Zero → initZ = 0. F is supplied inside the cycle section so ResolveFeedrate(JsonObject, JsonObject, ISentenceCarrier, NcDiagnosticProgress) writes the block-level Feedrate (G94 default, mm/min → mm/s) before the items are emitted.

G81 G98 — rapid to init (z=0), rapid to R, feed to bottom Z=-10 at F=600 mm/min → 10 mm/s, rapid back to init Z=0. Four items. The resolved cycle sub-section is removed by CleanupParsing(JsonObject, JsonObject, string); the empty Parsing drops off through CleanupParsing(JsonObject):

#BeforeBuild: 
{
  "Parsing": { "G81": { "X": 50, "Y": 30, "Z": -10, "R": 2, "F": 600 } },
  "CannedCycle": {
    "Term": "G81", "ReturnMode": "G98",
    "Params": { "X": 50, "Y": 30, "Z": -10, "R": 2 }
  }
}
#AfterBuild: 
{
  "CannedCycle": {
    "Term": "G81", "ReturnMode": "G98",
    "Params": { "X": 50, "Y": 30, "Z": -10, "R": 2 }
  },
  "Feedrate": { "FeedrateValue": 600, "Term": "G94", "Unit": "mm/min" },
  "CompoundMotion": {
    "Term": "G81",
    "Items": [
      { "ProgramXyz": { "X": 50, "Y": 30, "Z": 0 },   "MotionEvent": { "Form": "McLinear", "IsRapid": true } },
      { "ProgramXyz": { "X": 50, "Y": 30, "Z": 2 },   "MotionEvent": { "Form": "McLinear", "IsRapid": true } },
      { "ProgramXyz": { "X": 50, "Y": 30, "Z": -10 }, "MotionEvent": { "Form": "McLinear", "Feedrate_mmds": 10 } },
      { "ProgramXyz": { "X": 50, "Y": 30, "Z": 0 },   "MotionEvent": { "Form": "McLinear", "IsRapid": true } }
    ]
  },
  "ProgramXyz": { "X": 50, "Y": 30, "Z": 0 }
}
G82 with dwell P=0.5s — inserts a Dwell item between the feed-to-bottom rapid and the final retract, otherwise identical to G81. Five items total: #BeforeBuild: 
{
  "Parsing": { "G82": { "X": 50, "Y": 30, "Z": -10, "R": 2, "F": 600, "P": 0.5 } },
  "CannedCycle": {
    "Term": "G82", "ReturnMode": "G98",
    "Params": { "X": 50, "Y": 30, "Z": -10, "R": 2 }
  }
}
#AfterBuild: 
{
  "CannedCycle": {
    "Term": "G82", "ReturnMode": "G98",
    "Params": { "X": 50, "Y": 30, "Z": -10, "R": 2 }
  },
  "Feedrate": { "FeedrateValue": 600, "Term": "G94", "Unit": "mm/min" },
  "CompoundMotion": {
    "Term": "G82",
    "Items": [
      { "ProgramXyz": { "X": 50, "Y": 30, "Z": 0 },   "MotionEvent": { "Form": "McLinear", "IsRapid": true } },
      { "ProgramXyz": { "X": 50, "Y": 30, "Z": 2 },   "MotionEvent": { "Form": "McLinear", "IsRapid": true } },
      { "ProgramXyz": { "X": 50, "Y": 30, "Z": -10 }, "MotionEvent": { "Form": "McLinear", "Feedrate_mmds": 10 } },
      { "Dwell": { "Time": 0.5 } },
      { "ProgramXyz": { "X": 50, "Y": 30, "Z": 0 },   "MotionEvent": { "Form": "McLinear", "IsRapid": true } }
    ]
  },
  "ProgramXyz": { "X": 50, "Y": 30, "Z": 0 }
}

Remarks

G85 (feed retract) and G86 (spindle-stop retract) have different retract behaviors and require separate syntax classes.

Constructors

DrillingCycleSyntax()

Initializes a new instance with default settings.

public DrillingCycleSyntax()

DrillingCycleSyntax(XElement)

Initializes a new instance by deserializing from the given XML element.

public DrillingCycleSyntax(XElement src)

Parameters

src XElement

Source XML element.

Properties

Name

Syntax kind name (typically the concrete type name).

public string Name { get; }

Property Value

string

XName

XML element name used to register this syntax with XFactory.

public static string XName { get; }

Property Value

string

Methods

Build(LazyLinkedListNode<SyntaxPiece>, List<INcDependency>, NcDiagnosticProgress)

Build syntax arrangement into the syntaxPieceNode in-place.

public void Build(LazyLinkedListNode<SyntaxPiece> syntaxPieceNode, List<INcDependency> ncDependencyList, NcDiagnosticProgress ncDiagnosticProgress)

Parameters

syntaxPieceNode LazyLinkedListNode<SyntaxPiece>
ncDependencyList List<INcDependency>
ncDiagnosticProgress NcDiagnosticProgress

MakeXmlSource(string, string, bool)

Creates an XML representation of the object. This method may also generate additional resources such as related files.

public XElement MakeXmlSource(string baseDirectory, string relFile, bool exhibitionOnly)

Parameters

baseDirectory string

The base directory for resolving relative paths

relFile string

The relative file path for the XML source

exhibitionOnly bool

if true, the extended file creation is suppressed.

Returns

XElement

An XML element representing the object's state

Remarks

For the demand of easy moving source folder (especially project folder) without configuration file path corruption, the relative file path is applied. The baseDirectory is typically the folder at the nearest configuration file folder. Since the folder can be moving with the configuration file.

Reg(XFactory)

Registers this type's deserializer with the given XFactory (or Default when factory is null). Idempotent.

public static void Reg(XFactory factory = null)

Parameters

factory XFactory