Can't get zero to be up on Z axis

%
(1)
(T14  D=10. CR=0. - ZMIN=-32.2 - FLAT END MILL)
N10 G90 G94 G17 G91.1
N15 G21
N20 G53 G0 Z0.
(BORE1)
N25 M9
N30 T14 M6
N35 S5000 M3
N40 G54
N45 M8
N55 G0 X0.113 Y19.071
N60 G43 Z15. H14


N555 X4.057 Y8.151 Z-31.2
N560 G0 Z15.
N570 M9
N575 G53 Z0.
N580 M30
%

N20 G53 G0 Z0.

N575 G53 Z0.

N20 G53 G0 Z150.

N575 G53 Z150.

/**
  Copyright (C) 2012-2013 by Autodesk, Inc.
  All rights reserved.

  Enhanced Machine Controller (EMC) post processor configuration.

  $Revision: 37972 $
  $Date: 2014-10-18 23:40:07 +0200 (lø, 18 okt 2014) $
  
  FORKID {52A5C3D6-1533-413e-B493-7B93D9E48B30}
*/

description = "Generic Enhanced Machine Controller (EMC)";
vendor = "Autodesk, Inc.";
vendorUrl = "http://www.autodesk.com";
legal = "Copyright (C) 2012-2013 by Autodesk, Inc.";
certificationLevel = 2;
minimumRevision = 24000;

extension = "ngc";
setCodePage("ascii");

tolerance = spatial(0.002, MM);

minimumChordLength = spatial(0.01, MM);
minimumCircularRadius = spatial(0.01, MM);
maximumCircularRadius = spatial(1000, MM);
minimumCircularSweep = toRad(0.01);
maximumCircularSweep = toRad(180);
allowHelicalMoves = true;
allowedCircularPlanes = undefined; // allow any circular motion



// user-defined properties
properties = {
  writeMachine: true, // write machine
  writeTools: true, // writes the tools
  preloadTool: true, // preloads next tool on tool change if any
  showSequenceNumbers: true, // show sequence numbers
  sequenceNumberStart: 10, // first sequence number
  sequenceNumberIncrement: 5, // increment for sequence numbers
  optionalStop: true, // optional stop
  separateWordsWithSpace: true, // specifies that the words should be separated with a white space
  useRadius: false, // specifies that arcs should be output using the radius (R word) instead of the I, J, and K words.
  useParametricFeed: false, // specifies that feed should be output using Q values
  showNotes: false // specifies that operation notes should be output.
};

var useG28 = false;



var permittedCommentChars = " ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.,=_-";

var mapCoolantTable = new Table(
  [9, 8, 7],
  {initial:COOLANT_OFF, force:true},
  "Invalid coolant mode"
);

var gFormat = createFormat({prefix:"G", decimals:1});
var mFormat = createFormat({prefix:"M", decimals:1});
var hFormat = createFormat({prefix:"H", decimals:1});
var dFormat = createFormat({prefix:"D", decimals:1});

var xyzFormat = createFormat({decimals:(unit == MM ? 3 : 4), forceDecimal:true});
var rFormat = xyzFormat; // radius
var abcFormat = createFormat({decimals:3, forceDecimal:true, scale:DEG});
var feedFormat = createFormat({decimals:(unit == MM ? 2 : 3), forceDecimal:true});
var pitchFormat = createFormat({decimals:(unit == MM ? 3 : 4), forceDecimal:true});
var toolFormat = createFormat({decimals:0});
var rpmFormat = createFormat({decimals:0});
var secFormat = createFormat({decimals:3, forceDecimal:true}); // seconds - range 0.001-99999.999
var taperFormat = createFormat({decimals:1, scale:DEG});

var xOutput = createVariable({prefix:"X"}, xyzFormat);
var yOutput = createVariable({prefix:"Y"}, xyzFormat);
var zOutput = createVariable({prefix:"Z"}, xyzFormat);
var aOutput = createVariable({prefix:"A"}, abcFormat);
var bOutput = createVariable({prefix:"B"}, abcFormat);
var cOutput = createVariable({prefix:"C"}, abcFormat);
var feedOutput = createVariable({prefix:"F"}, feedFormat);
var sOutput = createVariable({prefix:"S", force:true}, rpmFormat);
var dOutput = createVariable({}, dFormat);

// circular output
var iOutput = createReferenceVariable({prefix:"I", force:true}, xyzFormat);
var jOutput = createReferenceVariable({prefix:"J", force:true}, xyzFormat);
var kOutput = createReferenceVariable({prefix:"K", force:true}, xyzFormat);

var gMotionModal = createModal({}, gFormat); // modal group 1 // G0-G3, ...
var gPlaneModal = createModal({onchange:function () {gMotionModal.reset();}}, gFormat); // modal group 2 // G17-19
var gAbsIncModal = createModal({}, gFormat); // modal group 3 // G90-91
var gFeedModeModal = createModal({}, gFormat); // modal group 5 // G93-94
var gUnitModal = createModal({}, gFormat); // modal group 6 // G20-21
var gCycleModal = createModal({}, gFormat); // modal group 9 // G81, ...
var gRetractModal = createModal({}, gFormat); // modal group 10 // G98-99

// fixed settings
var firstFeedParameter = 100;

var WARNING_WORK_OFFSET = 0;

// collected state
var sequenceNumber;
var currentWorkOffset;
var forceSpindleSpeed = false;
var activeMovements; // do not use by default
var currentFeedId;



/**
  Writes the specified block.
*/
function writeBlock() {
  if (properties.showSequenceNumbers) {
    writeWords2("N" + sequenceNumber, arguments);
    sequenceNumber += properties.sequenceNumberIncrement;
    if (sequenceNumber > 99999) {
      sequenceNumber = properties.sequenceNumberStart;    
    }
  } else {
    writeWords(arguments);
  }
}

/**
  Writes the specified optional block.
*/
function writeOptionalBlock() {
  if (properties.showSequenceNumbers) {
    var words = formatWords(arguments);
    if (words) {
      writeWords("/", "N" + sequenceNumber, words);
      sequenceNumber += properties.sequenceNumberIncrement;
      if (sequenceNumber > 99999) {
        sequenceNumber = properties.sequenceNumberStart;    
      }
    }
  } else {
    writeWords2("/", arguments);
  }
}

function formatComment(text) {
  return "(" + filterText(String(text).toUpperCase(), permittedCommentChars) + ")";
}

/**
  Output a comment.
*/
function writeComment(text) {
  writeln(formatComment(text));
}

function onOpen() {

  if (false) { // note: setup your machine here
    var aAxis = createAxis({coordinate:0, table:false, axis:[1, 0, 0], range:[-360,360], preference:1});
    var cAxis = createAxis({coordinate:2, table:false, axis:[0, 0, 1], range:[-360,360], preference:1});
    machineConfiguration = new MachineConfiguration(aAxis, cAxis);

    setMachineConfiguration(machineConfiguration);
    optimizeMachineAngles2(0); // TCP mode
  }

  if (!machineConfiguration.isMachineCoordinate(0)) {
    aOutput.disable();
  }
  if (!machineConfiguration.isMachineCoordinate(1)) {
    bOutput.disable();
  }
  if (!machineConfiguration.isMachineCoordinate(2)) {
    cOutput.disable();
  }
  
  if (!properties.separateWordsWithSpace) {
    setWordSeparator("");
  }

  sequenceNumber = properties.sequenceNumberStart;
  writeln("%");

  if (programName) {
    writeComment(programName);
  }
  if (programComment) {
    writeComment(programComment);
  }

  // dump machine configuration
  var vendor = machineConfiguration.getVendor();
  var model = machineConfiguration.getModel();
  var description = machineConfiguration.getDescription();

  if (properties.writeMachine && (vendor || model || description)) {
    writeComment(localize("Machine"));
    if (vendor) {
      writeComment("  " + localize("vendor") + ": " + vendor);
    }
    if (model) {
      writeComment("  " + localize("model") + ": " + model);
    }
    if (description) {
      writeComment("  " + localize("description") + ": "  + description);
    }
  }

  // dump tool information
  if (properties.writeTools) {
    var zRanges = {};
    if (is3D()) {
      var numberOfSections = getNumberOfSections();
      for (var i = 0; i < numberOfSections; ++i) {
        var section = getSection(i);
        var zRange = section.getGlobalZRange();
        var tool = section.getTool();
        if (zRanges[tool.number]) {
          zRanges[tool.number].expandToRange(zRange);
        } else {
          zRanges[tool.number] = zRange;
        }
      }
    }

    var tools = getToolTable();
    if (tools.getNumberOfTools() > 0) {
      for (var i = 0; i < tools.getNumberOfTools(); ++i) {
        var tool = tools.getTool(i);
        var comment = "T" + toolFormat.format(tool.number) + "  " +
          "D=" + xyzFormat.format(tool.diameter) + " " +
          localize("CR") + "=" + xyzFormat.format(tool.cornerRadius);
        if ((tool.taperAngle > 0) && (tool.taperAngle < Math.PI)) {
          comment += " " + localize("TAPER") + "=" + taperFormat.format(tool.taperAngle) + localize("deg");
        }
        if (zRanges[tool.number]) {
          comment += " - " + localize("ZMIN") + "=" + xyzFormat.format(zRanges[tool.number].getMinimum());
        }
        comment += " - " + getToolTypeName(tool.type);
        writeComment(comment);
      }
    }
  }
  
  if (false) {
    // check for duplicate tool number
    for (var i = 0; i < getNumberOfSections(); ++i) {
      var sectioni = getSection(i);
      var tooli = sectioni.getTool();
      for (var j = i + 1; j < getNumberOfSections(); ++j) {
        var sectionj = getSection(j);
        var toolj = sectionj.getTool();
        if (tooli.number == toolj.number) {
          if (xyzFormat.areDifferent(tooli.diameter, toolj.diameter) ||
              xyzFormat.areDifferent(tooli.cornerRadius, toolj.cornerRadius) ||
              abcFormat.areDifferent(tooli.taperAngle, toolj.taperAngle) ||
              (tooli.numberOfFlutes != toolj.numberOfFlutes)) {
            error(
              subst(
                localize("Using the same tool number for different cutter geometry for operation '%1' and '%2'."),
                sectioni.hasParameter("operation-comment") ? sectioni.getParameter("operation-comment") : ("#" + (i + 1)),
                sectionj.hasParameter("operation-comment") ? sectionj.getParameter("operation-comment") : ("#" + (j + 1))
              )
            );
            return;
          }
        }
      }
    }
  }

  // absolute coordinates, feed per min, and incremental arc center mode
  writeBlock(gAbsIncModal.format(90), gFeedModeModal.format(94), gPlaneModal.format(17), gFormat.format(91.1));

  switch (unit) {
  case IN:
    writeBlock(gUnitModal.format(20));
    break;
  case MM:
    writeBlock(gUnitModal.format(21));
    break;
  }
}

function onComment(message) {
  writeComment(message);
}

/** Force output of X, Y, and Z. */
function forceXYZ() {
  xOutput.reset();
  yOutput.reset();
  zOutput.reset();
}

/** Force output of A, B, and C. */
function forceABC() {
  aOutput.reset();
  bOutput.reset();
  cOutput.reset();
}

function forceFeed() {
  currentFeedId = undefined;
  feedOutput.reset();
}

/** Force output of X, Y, Z, A, B, C, and F on next output. */
function forceAny() {
  forceXYZ();
  forceABC();
  forceFeed();
}

function FeedContext(id, description, feed) {
  this.id = id;
  this.description = description;
  this.feed = feed;
}

function getFeed(f) {
  if (activeMovements) {
    var feedContext = activeMovements[movement];
    if (feedContext != undefined) {
      if (!feedFormat.areDifferent(feedContext.feed, f)) {
        if (feedContext.id == currentFeedId) {
          return ""; // nothing has changed
        }
        forceFeed();
        currentFeedId = feedContext.id;
        return "F#" + (firstFeedParameter + feedContext.id);
      }
    }
    currentFeedId = undefined; // force Q feed next time
  }
  return feedOutput.format(f); // use feed value
}

function initializeActiveFeeds() {
  activeMovements = new Array();
  var movements = currentSection.getMovements();
  
  var id = 0;
  var activeFeeds = new Array();
  if (hasParameter("operation:tool_feedCutting")) {
    if (movements & ((1 << MOVEMENT_CUTTING) | (1 << MOVEMENT_LINK_TRANSITION) | (1 << MOVEMENT_EXTENDED))) {
      var feedContext = new FeedContext(id, localize("Cutting"), getParameter("operation:tool_feedCutting"));
      activeFeeds.push(feedContext);
      activeMovements[MOVEMENT_CUTTING] = feedContext;
      activeMovements[MOVEMENT_LINK_TRANSITION] = feedContext;
      activeMovements[MOVEMENT_EXTENDED] = feedContext;
    }
    ++id;
    if (movements & (1 << MOVEMENT_PREDRILL)) {
      feedContext = new FeedContext(id, localize("Predrilling"), getParameter("operation:tool_feedCutting"));
      activeMovements[MOVEMENT_PREDRILL] = feedContext;
      activeFeeds.push(feedContext);
    }
    ++id;
  }
  
  if (hasParameter("operation:finishFeedrate")) {
    if (movements & (1 << MOVEMENT_FINISH_CUTTING)) {
      var feedContext = new FeedContext(id, localize("Finish"), getParameter("operation:finishFeedrate"));
      activeFeeds.push(feedContext);
      activeMovements[MOVEMENT_FINISH_CUTTING] = feedContext;
    }
    ++id;
  } else if (hasParameter("operation:tool_feedCutting")) {
    if (movements & (1 << MOVEMENT_FINISH_CUTTING)) {
      var feedContext = new FeedContext(id, localize("Finish"), getParameter("operation:tool_feedCutting"));
      activeFeeds.push(feedContext);
      activeMovements[MOVEMENT_FINISH_CUTTING] = feedContext;
    }
    ++id;
  }
  
  if (hasParameter("operation:tool_feedEntry")) {
    if (movements & (1 << MOVEMENT_LEAD_IN)) {
      var feedContext = new FeedContext(id, localize("Entry"), getParameter("operation:tool_feedEntry"));
      activeFeeds.push(feedContext);
      activeMovements[MOVEMENT_LEAD_IN] = feedContext;
    }
    ++id;
  }

  if (hasParameter("operation:tool_feedExit")) {
    if (movements & (1 << MOVEMENT_LEAD_OUT)) {
      var feedContext = new FeedContext(id, localize("Exit"), getParameter("operation:tool_feedExit"));
      activeFeeds.push(feedContext);
      activeMovements[MOVEMENT_LEAD_OUT] = feedContext;
    }
    ++id;
  }

  if (hasParameter("operation:noEngagementFeedrate")) {
    if (movements & (1 << MOVEMENT_LINK_DIRECT)) {
      var feedContext = new FeedContext(id, localize("Direct"), getParameter("operation:noEngagementFeedrate"));
      activeFeeds.push(feedContext);
      activeMovements[MOVEMENT_LINK_DIRECT] = feedContext;
    }
    ++id;
  } else if (hasParameter("operation:tool_feedCutting") &&
             hasParameter("operation:tool_feedEntry") &&
             hasParameter("operation:tool_feedExit")) {
    if (movements & (1 << MOVEMENT_LINK_DIRECT)) {
      var feedContext = new FeedContext(id, localize("Direct"), Math.max(getParameter("operation:tool_feedCutting"), getParameter("operation:tool_feedEntry"), getParameter("operation:tool_feedExit")));
      activeFeeds.push(feedContext);
      activeMovements[MOVEMENT_LINK_DIRECT] = feedContext;
    }
    ++id;
  }
  
  if (hasParameter("operation:reducedFeedrate")) {
    if (movements & (1 << MOVEMENT_REDUCED)) {
      var feedContext = new FeedContext(id, localize("Reduced"), getParameter("operation:reducedFeedrate"));
      activeFeeds.push(feedContext);
      activeMovements[MOVEMENT_REDUCED] = feedContext;
    }
    ++id;
  }

  if (hasParameter("operation:tool_feedRamp")) {
    if (movements & ((1 << MOVEMENT_RAMP) | (1 << MOVEMENT_RAMP_HELIX) | (1 << MOVEMENT_RAMP_PROFILE) | (1 << MOVEMENT_RAMP_ZIG_ZAG))) {
      var feedContext = new FeedContext(id, localize("Ramping"), getParameter("operation:tool_feedRamp"));
      activeFeeds.push(feedContext);
      activeMovements[MOVEMENT_RAMP] = feedContext;
      activeMovements[MOVEMENT_RAMP_HELIX] = feedContext;
      activeMovements[MOVEMENT_RAMP_PROFILE] = feedContext;
      activeMovements[MOVEMENT_RAMP_ZIG_ZAG] = feedContext;
    }
    ++id;
  }
  if (hasParameter("operation:tool_feedPlunge")) {
    if (movements & (1 << MOVEMENT_PLUNGE)) {
      var feedContext = new FeedContext(id, localize("Plunge"), getParameter("operation:tool_feedPlunge"));
      activeFeeds.push(feedContext);
      activeMovements[MOVEMENT_PLUNGE] = feedContext;
    }
    ++id;
  }
  if (true) { // high feed
    if (movements & (1 << MOVEMENT_HIGH_FEED)) {
      var feedContext = new FeedContext(id, localize("High Feed"), this.highFeedrate);
      activeFeeds.push(feedContext);
      activeMovements[MOVEMENT_HIGH_FEED] = feedContext;
    }
    ++id;
  }
  
  for (var i = 0; i < activeFeeds.length; ++i) {
    var feedContext = activeFeeds[i];
    writeBlock("#" + (firstFeedParameter + feedContext.id) + "=" + feedFormat.format(feedContext.feed), formatComment(feedContext.description));
  }
}

var currentWorkPlaneABC = undefined;

function forceWorkPlane() {
  currentWorkPlaneABC = undefined;
}

function setWorkPlane(abc) {
  if (!machineConfiguration.isMultiAxisConfiguration()) {
    return; // ignore
  }

  if (!((currentWorkPlaneABC == undefined) ||
        abcFormat.areDifferent(abc.x, currentWorkPlaneABC.x) ||
        abcFormat.areDifferent(abc.y, currentWorkPlaneABC.y) ||
        abcFormat.areDifferent(abc.z, currentWorkPlaneABC.z))) {
    return; // no change
  }

  onCommand(COMMAND_UNLOCK_MULTI_AXIS);

  // NOTE: add retract here

  writeBlock(
    gMotionModal.format(0),
    conditional(machineConfiguration.isMachineCoordinate(0), "A" + abcFormat.format(abc.x)),
    conditional(machineConfiguration.isMachineCoordinate(1), "B" + abcFormat.format(abc.y)),
    conditional(machineConfiguration.isMachineCoordinate(2), "C" + abcFormat.format(abc.z))
  );
  
  onCommand(COMMAND_LOCK_MULTI_AXIS);

  currentWorkPlaneABC = abc;
}

var closestABC = false; // choose closest machine angles
var currentMachineABC;

function getWorkPlaneMachineABC(workPlane) {
  var W = workPlane; // map to global frame

  var abc = machineConfiguration.getABC(W);
  if (closestABC) {
    if (currentMachineABC) {
      abc = machineConfiguration.remapToABC(abc, currentMachineABC);
    } else {
      abc = machineConfiguration.getPreferredABC(abc);
    }
  } else {
    abc = machineConfiguration.getPreferredABC(abc);
  }
  
  try {
    abc = machineConfiguration.remapABC(abc);
    currentMachineABC = abc;
  } catch (e) {
    error(
      localize("Machine angles not supported") + ":"
      + conditional(machineConfiguration.isMachineCoordinate(0), " A" + abcFormat.format(abc.x))
      + conditional(machineConfiguration.isMachineCoordinate(1), " B" + abcFormat.format(abc.y))
      + conditional(machineConfiguration.isMachineCoordinate(2), " C" + abcFormat.format(abc.z))
    );
  }
  
  var direction = machineConfiguration.getDirection(abc);
  if (!isSameDirection(direction, W.forward)) {
    error(localize("Orientation not supported."));
  }
  
  if (!machineConfiguration.isABCSupported(abc)) {
    error(
      localize("Work plane is not supported") + ":"
      + conditional(machineConfiguration.isMachineCoordinate(0), " A" + abcFormat.format(abc.x))
      + conditional(machineConfiguration.isMachineCoordinate(1), " B" + abcFormat.format(abc.y))
      + conditional(machineConfiguration.isMachineCoordinate(2), " C" + abcFormat.format(abc.z))
    );
  }

  var tcp = true;
  if (tcp) {
    setRotation(W); // TCP mode
  } else {
    var O = machineConfiguration.getOrientation(abc);
    var R = machineConfiguration.getRemainingOrientation(abc, W);
    setRotation(R);
  }
  
  return abc;
}

function onSection() {
  var insertToolCall = isFirstSection() ||
    currentSection.getForceToolChange && currentSection.getForceToolChange() ||
    (tool.number != getPreviousSection().getTool().number);
  
  var retracted = false; // specifies that the tool has been retracted to the safe plane
  var newWorkOffset = isFirstSection() ||
    (getPreviousSection().workOffset != currentSection.workOffset); // work offset changes
  var newWorkPlane = isFirstSection() ||
    !isSameDirection(getPreviousSection().getGlobalFinalToolAxis(), currentSection.getGlobalInitialToolAxis());
  if (insertToolCall || newWorkOffset || newWorkPlane) {
    
    // stop spindle before retract during tool change
    if (insertToolCall && !isFirstSection()) {
      onCommand(COMMAND_STOP_SPINDLE);
    }
    
    // retract to safe plane
    retracted = true;
    if (useG28) {
      writeBlock(gFormat.format(28), gAbsIncModal.format(91), "Z" + xyzFormat.format(0)); // retract
      writeBlock(gAbsIncModal.format(90));
    } else {
      writeBlock(gAbsIncModal.format(90), gFormat.format(53), gMotionModal.format(0), "Z" + xyzFormat.format(0)); // retract
    }
    zOutput.reset();
  }

  if (hasParameter("operation-comment")) {
    var comment = getParameter("operation-comment");
    if (comment) {
      writeComment(comment);
    }
  }
  
  if (properties.showNotes && hasParameter("notes")) {
    var notes = getParameter("notes");
    if (notes) {
      var lines = String(notes).split("\n");
      var r1 = new RegExp("^[\\s]+", "g");
      var r2 = new RegExp("[\\s]+$", "g");
      for (line in lines) {
        var comment = lines[line].replace(r1, "").replace(r2, "");
        if (comment) {
          writeComment(comment);
        }
      }
    }
  }
  
  if (insertToolCall) {
    forceWorkPlane();
    
    retracted = true;
    onCommand(COMMAND_COOLANT_OFF);
  
    if (!isFirstSection() && properties.optionalStop) {
      onCommand(COMMAND_OPTIONAL_STOP);
    }

    if (tool.number > 99) {
      warning(localize("Tool number exceeds maximum value."));
    }

    writeBlock("T" + toolFormat.format(tool.number), mFormat.format(6));
    if (tool.comment) {
      writeComment(tool.comment);
    }
    var showToolZMin = false;
    if (showToolZMin) {
      if (is3D()) {
        var numberOfSections = getNumberOfSections();
        var zRange = currentSection.getGlobalZRange();
        var number = tool.number;
        for (var i = currentSection.getId() + 1; i < numberOfSections; ++i) {
          var section = getSection(i);
          if (section.getTool().number != number) {
            break;
          }
          zRange.expandToRange(section.getGlobalZRange());
        }
        writeComment(localize("ZMIN") + "=" + zRange.getMinimum());
      }
    }

    if (properties.preloadTool) {
      var nextTool = getNextTool(tool.number);
      if (nextTool) {
        writeBlock("T" + toolFormat.format(nextTool.number));
      } else {
        // preload first tool
        var section = getSection(0);
        var firstToolNumber = section.getTool().number;
        if (tool.number != firstToolNumber) {
          writeBlock("T" + toolFormat.format(firstToolNumber));
        }
      }
    }
  }
  
  if (insertToolCall ||
      forceSpindleSpeed ||
      isFirstSection() ||
      (rpmFormat.areDifferent(tool.spindleRPM, sOutput.getCurrent())) ||
      (tool.clockwise != getPreviousSection().getTool().clockwise)) {
    forceSpindleSpeed = false;
    
    if (tool.spindleRPM < 1) {
      error(localize("Spindle speed out of range."));
      return;
    }
    if (tool.spindleRPM > 99999) {
      warning(localize("Spindle speed exceeds maximum value."));
    }
    writeBlock(
      sOutput.format(tool.spindleRPM), mFormat.format(tool.clockwise ? 3 : 4)
    );
  }

  // wcs
  var workOffset = currentSection.workOffset;
  if (workOffset == 0) {
    warningOnce(localize("Work offset has not been specified. Using G54 as WCS."), WARNING_WORK_OFFSET);
    workOffset = 1;
  }
  if (workOffset > 0) {
    if (workOffset > 6) {
      var p = workOffset - 6; // 1->...
      if (p > 3) {
        error(localize("Work offset out of range."));
        return;
      } else {
        if (workOffset != currentWorkOffset) {
          writeBlock(gFormat.format(59.1), "P" + p); // G59.1P
          currentWorkOffset = workOffset;
        }
      }
    } else {
      if (workOffset != currentWorkOffset) {
        writeBlock(gFormat.format(53 + workOffset)); // G54->G59
        currentWorkOffset = workOffset;
      }
    }
  }

  forceXYZ();

  if (machineConfiguration.isMultiAxisConfiguration()) { // use 5-axis indexing for multi-axis mode
    // set working plane after datum shift

    var abc = new Vector(0, 0, 0);
    if (currentSection.isMultiAxis()) {
      forceWorkPlane();
      cancelTransformation();
    } else {
      abc = getWorkPlaneMachineABC(currentSection.workPlane);
    }
    setWorkPlane(abc);
  } else { // pure 3D
    var remaining = currentSection.workPlane;
    if (!isSameDirection(remaining.forward, new Vector(0, 0, 1))) {
      error(localize("Tool orientation is not supported."));
      return;
    }
    setRotation(remaining);
  }

  // set coolant after we have positioned at Z
  {
    var c = mapCoolantTable.lookup(tool.coolant);
    if (c) {
      writeBlock(mFormat.format(c));
    } else {
      warning(localize("Coolant not supported."));
    }
  }

  forceAny();
  gMotionModal.reset();

  var initialPosition = getFramePosition(currentSection.getInitialPosition());
  if (!retracted) {
    if (getCurrentPosition().z < initialPosition.z) {
      writeBlock(gMotionModal.format(0), zOutput.format(initialPosition.z));
    }
  }

  if (insertToolCall || retracted || (!isFirstSection() && getPreviousSection().isMultiAxis())) {
    var lengthOffset = tool.lengthOffset;
    if (lengthOffset > 99) {
      error(localize("Length offset out of range."));
      return;
    }

    gMotionModal.reset();
    writeBlock(gPlaneModal.format(17));
    
    if (!machineConfiguration.isHeadConfiguration()) {
      writeBlock(
        gAbsIncModal.format(90),
        gMotionModal.format(0), xOutput.format(initialPosition.x), yOutput.format(initialPosition.y)
      );
      writeBlock(gMotionModal.format(0), gFormat.format(43), zOutput.format(initialPosition.z), hFormat.format(lengthOffset));
    } else {
      writeBlock(
        gAbsIncModal.format(90),
        gMotionModal.format(0),
        gFormat.format(43), xOutput.format(initialPosition.x),
        yOutput.format(initialPosition.y),
        zOutput.format(initialPosition.z), hFormat.format(lengthOffset)
      );
    }

    gMotionModal.reset();
  } else {
    writeBlock(
      gAbsIncModal.format(90),
      gMotionModal.format(0),
      xOutput.format(initialPosition.x),
      yOutput.format(initialPosition.y)
    );
  }


  if (properties.useParametricFeed &&
      hasParameter("operation-strategy") &&
      (getParameter("operation-strategy") != "drill")) {
    if (!insertToolCall &&
        activeMovements &&
        (getCurrentSectionId() > 0) &&
        (getPreviousSection().getPatternId() == currentSection.getPatternId())) {
      // use the current feeds
    } else {
      initializeActiveFeeds();
    }
  } else {
    activeMovements = undefined;
  }
}

function onDwell(seconds) {
  if (seconds > 99999.999) {
    warning(localize("Dwelling time is out of range."));
  }
  writeBlock(gFeedModeModal.format(94), gFormat.format(4), "P" + secFormat.format(seconds));
}

function onSpindleSpeed(spindleSpeed) {
  writeBlock(sOutput.format(spindleSpeed));
}

function onCycle() {
  writeBlock(gPlaneModal.format(17));
}

function getCommonCycle(x, y, z, r) {
  forceXYZ(); // force xyz on first drill hole of any cycle
  return [xOutput.format(x), yOutput.format(y),
    zOutput.format(z),
    "R" + xyzFormat.format(r)];
}

function onCyclePoint(x, y, z) {
  switch (cycleType) {
  case "tapping":
  case "left-tapping":
  case "right-tapping":
    cycleExpanded = true;
    repositionToCycleClearance(cycle, x, y, z);
    writeBlock(
      gAbsIncModal.format(90), gMotionModal.format(0),
      conditional(gPlaneModal.getCurrent() == 17, zOutput.format(cycle.retract)),
      conditional(gPlaneModal.getCurrent() == 18, yOutput.format(cycle.retract)),
      conditional(gPlaneModal.getCurrent() == 19, xOutput.format(cycle.retract))
    );
    writeBlock(
      gAbsIncModal.format(90), gFormat.format(33.1),
      conditional(gPlaneModal.getCurrent() == 17, zOutput.format(z)),
      conditional(gPlaneModal.getCurrent() == 18, yOutput.format(y)),
      conditional(gPlaneModal.getCurrent() == 19, xOutput.format(x)),
      "K" + pitchFormat.format(tool.threadPitch)
    );
    gMotionModal.reset();
    writeBlock(
      gAbsIncModal.format(90), gMotionModal.format(0),
      conditional(gPlaneModal.getCurrent() == 17, zOutput.format(cycle.clearance)),
      conditional(gPlaneModal.getCurrent() == 18, yOutput.format(cycle.clearance)),
      conditional(gPlaneModal.getCurrent() == 19, xOutput.format(cycle.clearance))
    );
    return;
  /*
  case "tapping-with-chip-breaking":
  case "left-tapping-with-chip-breaking":
  case "right-tapping-with-chip-breaking":
  */
  }

  if (isFirstCyclePoint()) {
    repositionToCycleClearance(cycle, x, y, z);
    
    // return to initial Z which is clearance plane and set absolute mode

    var F = cycle.feedrate;
    var P = (cycle.dwell == 0) ? 0 : clamp(0.001, cycle.dwell, 99999999); // in seconds

    switch (cycleType) {
    case "drilling":
      writeBlock(
        gRetractModal.format(98), gAbsIncModal.format(90), gCycleModal.format(81),
        getCommonCycle(x, y, z, cycle.retract),
        feedOutput.format(F)
      );
      break;
    case "counter-boring":
      if (P > 0) {
        writeBlock(
          gRetractModal.format(98), gAbsIncModal.format(90), gCycleModal.format(82),
          getCommonCycle(x, y, z, cycle.retract),
          "P" + secFormat.format(P),
          feedOutput.format(F)
        );
      } else {
        writeBlock(
          gRetractModal.format(98), gAbsIncModal.format(90), gCycleModal.format(81),
          getCommonCycle(x, y, z, cycle.retract),
          feedOutput.format(F)
        );
      }
      break;
    case "chip-breaking":
      expandCyclePoint(x, y, z);
      break;
    case "deep-drilling":
      if (P > 0) {
        expandCyclePoint(x, y, z);
      } else {
        writeBlock(
          gRetractModal.format(98), gAbsIncModal.format(90), gCycleModal.format(83),
          getCommonCycle(x, y, z, cycle.retract),
          "Q" + xyzFormat.format(cycle.incrementalDepth),
          // conditional(P > 0, "P" + secFormat.format(P)),
          feedOutput.format(F)
        );
      }
      break;
    case "fine-boring":
      expandCyclePoint(x, y, z);
      break;
    /* // not supported
    case "back-boring":
      var dx = (gPlaneModal.getCurrent() == 19) ? cycle.backBoreDistance : 0;
      var dy = (gPlaneModal.getCurrent() == 18) ? cycle.backBoreDistance : 0;
      var dz = (gPlaneModal.getCurrent() == 17) ? cycle.backBoreDistance : 0;
      writeBlock(
        gRetractModal.format(98), gAbsIncModal.format(90), gCycleModal.format(87),
        getCommonCycle(x - dx, y - dy, z - dz, cycle.bottom),
        "Q" + xyzFormat.format(cycle.shift),
        "P" + secFormat.format(P), // not optional
        feedOutput.format(F)
      );
      break;
    */
    case "reaming":
      if (P > 0) {
        writeBlock(
          gRetractModal.format(98), gAbsIncModal.format(90), gCycleModal.format(89),
          getCommonCycle(x, y, z, cycle.retract),
          "P" + secFormat.format(P),
          feedOutput.format(F)
        );
      } else {
        writeBlock(
          gRetractModal.format(98), gAbsIncModal.format(90), gCycleModal.format(85),
          getCommonCycle(x, y, z, cycle.retract),
          feedOutput.format(F)
        );
      }
      break;
    case "stop-boring":
      writeBlock(
        gRetractModal.format(98), gAbsIncModal.format(90), gCycleModal.format(86),
        getCommonCycle(x, y, z, cycle.retract),
        conditional(P > 0, "P" + secFormat.format(P)),
        feedOutput.format(F)
      );
      break;
    case "manual-boring":
      writeBlock(
        gRetractModal.format(98), gAbsIncModal.format(90), gCycleModal.format(88),
        getCommonCycle(x, y, z, cycle.retract),
        "P" + secFormat.format(P), // not optional
        feedOutput.format(F)
      );
      break;
    case "boring":
      if (P > 0) {
        writeBlock(
          gRetractModal.format(98), gAbsIncModal.format(90), gCycleModal.format(89),
          getCommonCycle(x, y, z, cycle.retract),
          "P" + secFormat.format(P), // not optional
          feedOutput.format(F)
        );
      } else {
        writeBlock(
          gRetractModal.format(98), gAbsIncModal.format(90), gCycleModal.format(85),
          getCommonCycle(x, y, z, cycle.retract),
          feedOutput.format(F)
        );
      }
      break;
    default:
      expandCyclePoint(x, y, z);
    }
  } else {
    if (cycleExpanded) {
      expandCyclePoint(x, y, z);
    } else {
      var _x = xOutput.format(x);
      var _y = yOutput.format(y);
      var _z = zOutput.format(z);
      if (!_x && !_y && !_z) {
        switch (gPlaneModal.getCurrent()) {
        case 17: // XY
          xOutput.reset(); // at least one axis is required
          _x = xOutput.format(x);
          break;
        case 18: // ZX
          zOutput.reset(); // at least one axis is required
          _z = zOutput.format(z);
          break;
        case 19: // YZ
          yOutput.reset(); // at least one axis is required
          _y = yOutput.format(y);
          break;
        }
      }
      writeBlock(_x, _y, _z);
    }
  }
}

function onCycleEnd() {
  if (!cycleExpanded) {
    writeBlock(gCycleModal.format(80));
    gMotionModal.reset();
  }
}

var pendingRadiusCompensation = -1;

function onRadiusCompensation() {
  pendingRadiusCompensation = radiusCompensation;
}

function onRapid(_x, _y, _z) {
  var x = xOutput.format(_x);
  var y = yOutput.format(_y);
  var z = zOutput.format(_z);
  if (x || y || z) {
    if (pendingRadiusCompensation >= 0) {
      error(localize("Radius compensation mode cannot be changed at rapid traversal."));
      return;
    }
    writeBlock(gMotionModal.format(0), x, y, z);
    forceFeed();
  }
}

function onLinear(_x, _y, _z, feed) {
  var x = xOutput.format(_x);
  var y = yOutput.format(_y);
  var z = zOutput.format(_z);
  var f = getFeed(feed);
  if (x || y || z) {
    if (pendingRadiusCompensation >= 0) {
      pendingRadiusCompensation = -1;
      var d = tool.diameterOffset;
      if (d > 99) {
        warning(localize("The diameter offset exceeds the maximum value."));
      }
      writeBlock(gPlaneModal.format(17));
      switch (radiusCompensation) {
      case RADIUS_COMPENSATION_LEFT:
        dOutput.reset();
        writeBlock(gMotionModal.format(1), gFormat.format(41), x, y, z, dOutput.format(d), f);
        break;
      case RADIUS_COMPENSATION_RIGHT:
        dOutput.reset();
        writeBlock(gMotionModal.format(1), gFormat.format(42), x, y, z, dOutput.format(d), f);
        break;
      default:
        writeBlock(gMotionModal.format(1), gFormat.format(40), x, y, z, f);
      }
    } else {
      writeBlock(gMotionModal.format(1), x, y, z, f);
    }
  } else if (f) {
    if (getNextRecord().isMotion()) { // try not to output feed without motion
      forceFeed(); // force feed on next line
    } else {
      writeBlock(gMotionModal.format(1), f);
    }
  }
}

function onRapid5D(_x, _y, _z, _a, _b, _c) {
  if (pendingRadiusCompensation >= 0) {
    error(localize("Radius compensation mode cannot be changed at rapid traversal."));
    return;
  }
  var x = xOutput.format(_x);
  var y = yOutput.format(_y);
  var z = zOutput.format(_z);
  var a = aOutput.format(_a);
  var b = bOutput.format(_b);
  var c = cOutput.format(_c);
  writeBlock(gMotionModal.format(0), x, y, z, a, b, c);
  forceFeed();
}

function onLinear5D(_x, _y, _z, _a, _b, _c, feed) {
  if (pendingRadiusCompensation >= 0) {
    error(localize("Radius compensation cannot be activated/deactivated for 5-axis move."));
    return;
  }
  var x = xOutput.format(_x);
  var y = yOutput.format(_y);
  var z = zOutput.format(_z);
  var a = aOutput.format(_a);
  var b = bOutput.format(_b);
  var c = cOutput.format(_c);
  var f = getFeed(feed);
  if (x || y || z || a || b || c) {
    writeBlock(gMotionModal.format(1), x, y, z, a, b, c, f);
  } else if (f) {
    if (getNextRecord().isMotion()) { // try not to output feed without motion
      forceFeed(); // force feed on next line
    } else {
      writeBlock(gMotionModal.format(1), f);
    }
  }
}

function onCircular(clockwise, cx, cy, cz, x, y, z, feed) {
  if (pendingRadiusCompensation >= 0) {
    error(localize("Radius compensation cannot be activated/deactivated for a circular move."));
    return;
  }

  var start = getCurrentPosition();

  if (isFullCircle()) {
    if (properties.useRadius || isHelical()) { // radius mode does not support full arcs
      linearize(tolerance);
      return;
    }
    switch (getCircularPlane()) {
    case PLANE_XY:
      writeBlock(gAbsIncModal.format(90), gPlaneModal.format(17), gMotionModal.format(clockwise ? 2 : 3), iOutput.format(cx - start.x, 0), jOutput.format(cy - start.y, 0), getFeed(feed));
      break;
    case PLANE_ZX:
      writeBlock(gAbsIncModal.format(90), gPlaneModal.format(18), gMotionModal.format(clockwise ? 2 : 3), iOutput.format(cx - start.x, 0), kOutput.format(cz - start.z, 0), getFeed(feed));
      break;
    case PLANE_YZ:
      writeBlock(gAbsIncModal.format(90), gPlaneModal.format(19), gMotionModal.format(clockwise ? 2 : 3), jOutput.format(cy - start.y, 0), kOutput.format(cz - start.z, 0), getFeed(feed));
      break;
    default:
      linearize(tolerance);
    }
  } else if (!properties.useRadius) {
    switch (getCircularPlane()) {
    case PLANE_XY:
      writeBlock(gAbsIncModal.format(90), gPlaneModal.format(17), gMotionModal.format(clockwise ? 2 : 3), xOutput.format(x), yOutput.format(y), zOutput.format(z), iOutput.format(cx - start.x, 0), jOutput.format(cy - start.y, 0), getFeed(feed));
      break;
    case PLANE_ZX:
      writeBlock(gAbsIncModal.format(90), gPlaneModal.format(18), gMotionModal.format(clockwise ? 2 : 3), xOutput.format(x), yOutput.format(y), zOutput.format(z), iOutput.format(cx - start.x, 0), kOutput.format(cz - start.z, 0), getFeed(feed));
      break;
    case PLANE_YZ:
      writeBlock(gAbsIncModal.format(90), gPlaneModal.format(19), gMotionModal.format(clockwise ? 2 : 3), xOutput.format(x), yOutput.format(y), zOutput.format(z), jOutput.format(cy - start.y, 0), kOutput.format(cz - start.z, 0), getFeed(feed));
      break;
    default:
      linearize(tolerance);
    }
  } else { // use radius mode
    var r = getCircularRadius();
    if (toDeg(getCircularSweep()) > (180 + 1e-9)) {
      r = -r; // allow up to <360 deg arcs
    }
    switch (getCircularPlane()) {
    case PLANE_XY:
      writeBlock(gPlaneModal.format(17), gMotionModal.format(clockwise ? 2 : 3), xOutput.format(x), yOutput.format(y), zOutput.format(z), "R" + rFormat.format(r), getFeed(feed));
      break;
    case PLANE_ZX:
      writeBlock(gPlaneModal.format(18), gMotionModal.format(clockwise ? 2 : 3), xOutput.format(x), yOutput.format(y), zOutput.format(z), "R" + rFormat.format(r), getFeed(feed));
      break;
    case PLANE_YZ:
      writeBlock(gPlaneModal.format(19), gMotionModal.format(clockwise ? 2 : 3), xOutput.format(x), yOutput.format(y), zOutput.format(z), "R" + rFormat.format(r), getFeed(feed));
      break;
    default:
      linearize(tolerance);
    }
  }
}

var mapCommand = {
  COMMAND_STOP:0,
  COMMAND_OPTIONAL_STOP:1,
  COMMAND_END:2,
  COMMAND_SPINDLE_CLOCKWISE:3,
  COMMAND_SPINDLE_COUNTERCLOCKWISE:4,
  COMMAND_STOP_SPINDLE:5,
  COMMAND_ORIENTATE_SPINDLE:19,
  COMMAND_LOAD_TOOL:6,
  COMMAND_COOLANT_ON:8,
  COMMAND_COOLANT_OFF:9
};

function onCommand(command) {
  switch (command) {
  case COMMAND_STOP:
    writeBlock(mFormat.format(0));
    forceSpindleSpeed = true;
    return;
  case COMMAND_START_SPINDLE:
    onCommand(tool.clockwise ? COMMAND_SPINDLE_CLOCKWISE : COMMAND_SPINDLE_COUNTERCLOCKWISE);
    return;
  case COMMAND_LOCK_MULTI_AXIS:
    return;
  case COMMAND_UNLOCK_MULTI_AXIS:
    return;
  case COMMAND_BREAK_CONTROL:
    return;
  case COMMAND_TOOL_MEASURE:
    return;
  }
  
  var stringId = getCommandStringId(command);
  var mcode = mapCommand[stringId];
  if (mcode != undefined) {
    writeBlock(mFormat.format(mcode));
  } else {
    onUnsupportedCommand(command);
  }
}

function onSectionEnd() {
  if (currentSection.isMultiAxis()) {
    writeBlock(gMotionModal.format(49));
  }
  writeBlock(gPlaneModal.format(17));

  if (((getCurrentSectionId() + 1) >= getNumberOfSections()) ||
      (tool.number != getNextSection().getTool().number)) {
    onCommand(COMMAND_BREAK_CONTROL);
  }

  forceAny();
}

function onClose() {
  onCommand(COMMAND_COOLANT_OFF);

  if (useG28) {
    writeBlock(gFormat.format(28), gAbsIncModal.format(91), "Z" + xyzFormat.format(0)); // retract
  } else {
    writeBlock(gAbsIncModal.format(90), gFormat.format(53), gMotionModal.format(0), "Z" + xyzFormat.format(0)); // retract
  }
  zOutput.reset();

  setWorkPlane(new Vector(0, 0, 0)); // reset working plane

  if (!machineConfiguration.hasHomePositionX() && !machineConfiguration.hasHomePositionY()) {
    if (useG28) {
      // 90/91 mode is don't care
      writeBlock(gFormat.format(28), gAbsIncModal.format(91), "X" + xyzFormat.format(0), "Y" + xyzFormat.format(0)); // return to home
    }
  } else {
    var homeX;
    if (machineConfiguration.hasHomePositionX()) {
      homeX = "X" + xyzFormat.format(machineConfiguration.getHomePositionX());
    }
    var homeY;
    if (machineConfiguration.hasHomePositionY()) {
      homeY = "Y" + xyzFormat.format(machineConfiguration.getHomePositionY());
    }
    writeBlock(gAbsIncModal.format(90), gFormat.format(53), gMotionModal.format(0), homeX, homeY);
  }

  onImpliedCommand(COMMAND_END);
  onImpliedCommand(COMMAND_STOP_SPINDLE);
  writeBlock(mFormat.format(30)); // stop program, spindle stop, coolant off
  writeln("%");
}