private bool Process(bool Save)
{
//Check if there is any loaded geometry at all
if (shapes == null)
{
MessageBox.Show("No geometry found", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
//Gets the parameters from the form and check if they are valid
GCodeSettings settings = ReadSettings();
if (settings == null)
{
MessageBox.Show("Invalid settings configuration", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
//Create the GCode string
string gCode = GenerateGCode(shapes, settings);
//If the return string is empty, something went wrong...
if (gCode.Length == 0)
{
MessageBox.Show("Could not generate the G-Code", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
//If opted to save, dump the contents to the file. Otherwise, show the preview form
if (Save)
{
try {
File.WriteAllText(txtOutput.Text, gCode);
MessageBox.Show("G-Code successfully generated", "File saved", MessageBoxButtons.OK, MessageBoxIcon.Information);
return(true);
} catch {
MessageBox.Show("Failed to save the file", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
}
else
{
frmPreview formPreview = new frmPreview();
formPreview.txtGCode.Text = gCode;
formPreview.ShowDialog();
return(true);
}
}
private GCodeSettings ReadSettings()
{
GCodeSettings settings = new GCodeSettings();
settings.gcLaserOn = txtLaserOn.Text;
settings.gcLaserOff = txtLaserOff.Text;
settings.gcSpindleOn = txtSpindleOn.Text;
settings.gcSpindleOff = txtSpindleOff.Text;
settings.gcUnit = rdoMilimiters.Checked ? "G21" : "G20";
settings.gcPositioning = rdoAbsolute.Checked ? "G90" : "G91";
settings.gcHeader = txtHeader.Text;
settings.gcFooter = txtFooter.Text;
settings.gcZTravelHeight = (double)nudTravelHeight.Value;
settings.gcZChange = (double)nudZChange.Value;
settings.gcPass = (int)nudPasses.Value;
settings.gcRapidRaise = true;
if (!int.TryParse(txtFastFeed.Text, out settings.gcMoveFeed))
{
MessageBox.Show("Invalid fast feed value", "Invalid value", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(null);
}
if (!int.TryParse(txtLinearFeed.Text, out settings.gcLinearFeed))
{
MessageBox.Show("Invalid linear feed value", "Invalid value", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(null);
}
settings.gcMoveFeedCmd = txtFastFeedCmd.Text;
settings.gcLinearFeedCmd = txtLinearFeedCmd.Text;
settings.gcComments = chkComments.Checked;
settings.gcType = cboProcess.SelectedIndex == 0 ? GCodeType.SINGLE_PASS : GCodeType.MULTIPLE_PASS;
settings.gcPrecisionFormat = cboPrecision.Text;
settings.gcReturnOrigin = chkOrigin.Checked;
settings.gcIsSpindle = rdoSpindle.Checked;
return(settings);
}
private string GenerateGCode(List <Shape> Shapes, GCodeSettings Settings)
{
StringBuilder sb = new StringBuilder();
int shapeCount;
if (Settings.gcHeader != "")
{
sb.AppendLine(Settings.gcHeader);
}
sb.AppendLine(Settings.gcUnit);
sb.AppendLine(Settings.gcPositioning);
if (Settings.gcType == GCodeType.SINGLE_PASS)
{
//SINGLE PASS (for laser engraving or cutting thing surfaces)
shapeCount = 1;
foreach (Shape shape in Shapes)
{
if (Settings.gcComments)
{
sb.AppendLine("; Shape " + shapeCount);
}
//Turn the laser off
sb.AppendLine(Settings.gcLaserOff);
//Dwell for 100ms
sb.AppendLine("G4 P100");
//Fast move to the shape's start position
sb.AppendLine(Settings.gcMoveFeedCmd +
" X" + shape.Vertices[0].X.ToString(Settings.gcPrecisionFormat, CultureInfo.InvariantCulture) +
" Y" + shape.Vertices[0].Y.ToString(Settings.gcPrecisionFormat, CultureInfo.InvariantCulture) +
" F" + Settings.gcMoveFeed.ToString(Settings.gcPrecisionFormat, CultureInfo.InvariantCulture));
//Wait for moves to finish
sb.AppendLine("M400");
//Turn the laser on
sb.AppendLine(Settings.gcLaserOn);
//Dwell for 100ms
sb.AppendLine("G4 P100");
//Linear move with slower feedrate (where the actual engraving occurs)
foreach (Vector2d point in shape.Vertices)
{
sb.AppendLine(Settings.gcLinearFeedCmd +
" X" + point.X.ToString(Settings.gcPrecisionFormat, CultureInfo.InvariantCulture) +
" Y" + point.Y.ToString(Settings.gcPrecisionFormat, CultureInfo.InvariantCulture) +
" F" + Settings.gcLinearFeed.ToString(Settings.gcPrecisionFormat, CultureInfo.InvariantCulture));
}
//Wait for moves to finish
sb.AppendLine("M400");
shapeCount++;
}
//Turn the laser off
sb.AppendLine(Settings.gcLaserOff);
sb.AppendLine("G4 P100"); //Dwell for 100ms
}
else
{
//MULTI-PASS MODE (for milling or laser cutting that involves multiple passes with different heights)
double currentDepth;
if (Settings.gcIsSpindle)
{
currentDepth = -Settings.gcZChange;
}
else
{
currentDepth = 0;
}
//If using spindle motor, make sure we raise the spindle before turning it on
if (Settings.gcIsSpindle)
{
sb.AppendLine(Settings.gcMoveFeedCmd +
" Z" + Settings.gcZTravelHeight.ToString(Settings.gcPrecisionFormat, CultureInfo.InvariantCulture) +
" F" + Settings.gcLinearFeed.ToString(Settings.gcPrecisionFormat, CultureInfo.InvariantCulture));
sb.AppendLine("M400");
sb.AppendLine(Settings.gcSpindleOn);
sb.AppendLine("G4 P100");
}
else
{
sb.AppendLine(Settings.gcSpindleOff);
sb.AppendLine("G4 P100");
}
for (int a = 0; a < Settings.gcPass; a++)
{
shapeCount = 1;
if (Settings.gcComments)
{
sb.AppendLine("; \r\n; PASS " + (a + 1) + "\r\n; ");
}
//If using laser, we only move the Z axis every pass (the spindle needs to move the Z axis every shape) in relative space
if (!Settings.gcIsSpindle)
{
sb.AppendLine("G91");
sb.AppendLine(Settings.gcLinearFeedCmd +
" Z" + currentDepth.ToString(Settings.gcPrecisionFormat, CultureInfo.InvariantCulture) +
" F" + Settings.gcLinearFeed.ToString(Settings.gcPrecisionFormat, CultureInfo.InvariantCulture));
sb.AppendLine("M400");
//Restore the original positioning mode (relative/absolute)
sb.AppendLine(Settings.gcPositioning);
}
foreach (Shape shape in Shapes)
{
if (Settings.gcComments)
{
sb.AppendLine("; Shape " + shapeCount);
}
//Fast move to initial shape coordinate
sb.AppendLine(Settings.gcMoveFeedCmd +
" X" + shape.Vertices[0].X.ToString(Settings.gcPrecisionFormat, CultureInfo.InvariantCulture) +
" Y" + shape.Vertices[0].Y.ToString(Settings.gcPrecisionFormat, CultureInfo.InvariantCulture) +
" F" + Settings.gcMoveFeed.ToString(Settings.gcPrecisionFormat, CultureInfo.InvariantCulture));
sb.AppendLine("M400");
if (Settings.gcIsSpindle)
{
//If using spindle, lower it to the current pass depth
sb.AppendLine(Settings.gcLinearFeedCmd +
" Z" + currentDepth.ToString(Settings.gcPrecisionFormat, CultureInfo.InvariantCulture) +
" F" + Settings.gcLinearFeed.ToString(Settings.gcPrecisionFormat, CultureInfo.InvariantCulture));
sb.AppendLine("M400");
}
else
{
//Otherwise turn the layer on
sb.AppendLine(Settings.gcSpindleOn);
sb.AppendLine("G4 P100");
}
//Linear move to start milling/laser cutting
foreach (Vector2d point in shape.Vertices)
{
sb.AppendLine(Settings.gcLinearFeedCmd +
" X" + point.X.ToString(Settings.gcPrecisionFormat, CultureInfo.InvariantCulture) +
" Y" + point.Y.ToString(Settings.gcPrecisionFormat, CultureInfo.InvariantCulture) +
" F" + Settings.gcLinearFeed.ToString(Settings.gcPrecisionFormat, CultureInfo.InvariantCulture));
}
sb.AppendLine("M400");
if (Settings.gcIsSpindle)
{
//If using spindle, raised it to the travel height
sb.AppendLine(Settings.gcLinearFeedCmd +
" Z" + Settings.gcZTravelHeight.ToString(Settings.gcPrecisionFormat, CultureInfo.InvariantCulture) +
" F" + Settings.gcLinearFeed.ToString(Settings.gcPrecisionFormat, CultureInfo.InvariantCulture));
sb.AppendLine("M400");
}
else
{
//Otherwise turn the layer off to move into the next shape
sb.AppendLine(Settings.gcSpindleOff);
sb.AppendLine("G4 P100");
}
shapeCount++;
}
//Go deeper for the next pass
currentDepth = -Settings.gcZChange;
}
//Make sure we end with the spindle off
sb.AppendLine(Settings.gcSpindleOff);
sb.AppendLine("G4 P100");
}
//Return to origin
if (Settings.gcReturnOrigin)
{
sb.AppendLine("G0 X0 Y0 F" + Settings.gcMoveFeed.ToString(Settings.gcPrecisionFormat, CultureInfo.InvariantCulture));
}
if (Settings.gcFooter != "")
{
sb.AppendLine(Settings.gcFooter);
}
return(sb.ToString());
}