Table of Contents

Class BackBoringSyntax

Namespace
Hi.NcParsers.LogicSyntaxs
Assembly
HiMech.dll

G87 back boring cycle. Supports modal repetition. Cuts upward from Z to R — used to bore the back side of a workpiece.

Cycle sequence:

  1. Oriented spindle stop (OSS) at current position
  2. Rapid (shifted) to init position, then down to bottom Z — tool enters pre-drilled hole without contacting bore wall
  3. Shift back to hole center at bottom
  4. Spindle start (CW)
  5. Feed upward from Z to R-point (back boring cut)
  6. Oriented spindle stop at R
  7. Tool shift, rapid retract (shifted) to final Z
  8. Shift back to center, spindle restart

Q specifies the lateral shift distance (mm). Shift direction defaults to +X (OSS angle 0°).

Reads absolute coordinates from the cycle section, which is resolved by CannedCycleResolveSyntax before this syntax runs. 

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

Examples

G87 G98 — pre-populated CannedCycle, no #Previous: so initZ = 0, F=600 → 10 mm/s, shift Q=1. Eleven items — the longest canned-cycle item list — split into three phases: enter shifted (OSS, shifted-init, shifted-bottom, back-to- center, spindle-CW); cut upward (feed bottom → R); retract shifted (OSS again, shifted-at-R, shifted-final, back-to-center, spindle- restart). Note that the feed step goes UP (Z=-10 → Z=2), not down, which is the defining feature of back boring: #BeforeBuild:

{
  "Parsing": { "G87": { "X": 50, "Y": 30, "Z": -10, "R": 2, "Q": 1, "F": 600 } },
  "CannedCycle": {
    "Term": "G87", "ReturnMode": "G98",
    "Params": { "X": 50, "Y": 30, "Z": -10, "R": 2, "Q": 1 }
  }
}

#AfterBuild:

{
  "CannedCycle": {
    "Term": "G87", "ReturnMode": "G98",
    "Params": { "X": 50, "Y": 30, "Z": -10, "R": 2, "Q": 1 }
  },
  "Feedrate": { "FeedrateValue": 600, "Term": "G94", "Unit": "mm/min" },
  "CompoundMotion": {
    "Term": "G87",
    "Items": [
      { "SpindleOrientation": { "Angle_deg": 0 } },
      { "ProgramXyz": { "X": 51, "Y": 30, "Z": 0 },   "MotionEvent": { "Form": "McLinear", "IsRapid": true } },
      { "ProgramXyz": { "X": 51, "Y": 30, "Z": -10 }, "MotionEvent": { "Form": "McLinear", "IsRapid": true } },
      { "ProgramXyz": { "X": 50, "Y": 30, "Z": -10 }, "MotionEvent": { "Form": "McLinear", "IsRapid": true } },
      { "SpindleControl": { "Direction": "CW" } },
      { "ProgramXyz": { "X": 50, "Y": 30, "Z": 2 },   "MotionEvent": { "Form": "McLinear", "Feedrate_mmds": 10 } },
      { "SpindleOrientation": { "Angle_deg": 0 } },
      { "ProgramXyz": { "X": 51, "Y": 30, "Z": 2 },   "MotionEvent": { "Form": "McLinear", "IsRapid": true } },
      { "ProgramXyz": { "X": 51, "Y": 30, "Z": 0 },   "MotionEvent": { "Form": "McLinear", "IsRapid": true } },
      { "ProgramXyz": { "X": 50, "Y": 30, "Z": 0 },   "MotionEvent": { "Form": "McLinear", "IsRapid": true } },
      { "SpindleControl": { "Direction": "CW" } }
    ]
  },
  "ProgramXyz": { "X": 50, "Y": 30, "Z": 0 }
}

Constructors

BackBoringSyntax()

Initializes a new instance with default settings.

public BackBoringSyntax()

BackBoringSyntax(XElement)

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

public BackBoringSyntax(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