static string GenerateGCodeForMeshes(PrintMeshAssembly meshes)
{
AxisAlignedBox3d bounds = meshes.TotalBounds;
double top_z = bounds.Depth;
// configure settings
RepRapSettings settings = new RepRapSettings(RepRap.Models.Unknown);
settings.GenerateSupport = false;
settings.EnableBridging = false;
int nSpeed = 1200; // foam
//int nSpeed = 700; // wood
settings.RapidTravelSpeed = nSpeed;
settings.RapidExtrudeSpeed = nSpeed;
settings.CarefulExtrudeSpeed = nSpeed;
settings.OuterPerimeterSpeedX = 1.0;
settings.ZTravelSpeed = nSpeed;
settings.RetractSpeed = nSpeed;
settings.LayerHeightMM = 4.0;
settings.Machine.NozzleDiamMM = 6.35;
settings.Machine.BedSizeXMM = 240;
settings.Machine.BedSizeYMM = 190;
settings.RetractDistanceMM = 1;
settings.EnableRetraction = true;
settings.ShellsFillNozzleDiamStepX = 0.5;
settings.SolidFillNozzleDiamStepX = 0.9;
settings.SolidFillBorderOverlapX = 0.5;
LastSettings = settings.CloneAs <SingleMaterialFFFSettings>();
System.Console.WriteLine("Slicing...");
// slice meshes
MeshPlanarMillSlicer slicer = new MeshPlanarMillSlicer()
{
LayerHeightMM = settings.LayerHeightMM,
ToolDiameter = settings.Machine.NozzleDiamMM,
ExpandStockAmount = 0.4 * settings.Machine.NozzleDiamMM
};
slicer.Add(meshes);
MeshPlanarMillSlicer.Result sliceResult = slicer.Compute();
PlanarSliceStack slices = sliceResult.Clearing;
System.Console.WriteLine("Generating GCode...");
ToolpathSet accumPaths;
GCodeFile genGCode = generate_cnc_test(sliceResult, settings, out accumPaths);
System.Console.WriteLine("Writing GCode...");
string sWritePath = "../../../sample_output/generated.nc";
StandardGCodeWriter writer = new StandardGCodeWriter()
{
CommentStyle = StandardGCodeWriter.CommentStyles.Bracket
};
using (StreamWriter w = new StreamWriter(sWritePath)) {
writer.WriteFile(genGCode, w);
}
//DMesh3 tube_mesh = GenerateTubeMeshesForGCode(sWritePath, settings.Machine.NozzleDiamMM);
DMesh3 tube_mesh = GenerateTubeMeshesForGCode(sWritePath, 0.4);
StandardMeshWriter.WriteMesh("../../../sample_output/generated_tubes.obj", tube_mesh, WriteOptions.Defaults);
if (SHOW_RELOADED_GCODE_PATHS == false)
{
View.SetPaths(accumPaths, settings);
View.PathDiameterMM = (float)settings.Machine.NozzleDiamMM;
}
slices.Add(sliceResult.HorizontalFinish.Slices);
slices.Slices.Sort((a, b) => { return(a.Z.CompareTo(b.Z)); });
View.SetSlices(slices);
View.CurrentLayer = slices.Slices.Count - 1;
return(sWritePath);
}
static GCodeFile generate_cnc_test(MeshPlanarMillSlicer.Result sliceSets, RepRapSettings settings, out ToolpathSet AccumulatedPaths)
{
int PLUNGE_SPEED = 800;
AccumulatedPaths = new ToolpathSet();
GCodeFileAccumulator file_accumulator = new GCodeFileAccumulator();
GCodeBuilder builder = new GCodeBuilder(file_accumulator);
BaseThreeAxisMillingCompiler Compiler = new BaseThreeAxisMillingCompiler(builder, settings, GenericMillingAssembler.Factory);
Compiler.Begin();
/*
* Clearing pass
*/
PlanarSliceStack clearingSlices = sliceSets.Clearing;
int N = clearingSlices.Count;
// assuming origin is at top of stock so we actaully are going down in Z layers
for (int k = 0; k < N; ++k)
{
clearingSlices[k].Z = -(sliceSets.TopZ - clearingSlices[k].Z);
}
for (int layeri = 0; layeri < N; layeri++)
{
PlanarSlice slice = clearingSlices[layeri];
Compiler.AppendComment(string.Format("clearing layer {0} - {1}mm", layeri, slice.Z));
ToolpathSetBuilder layer_builder = new ToolpathSetBuilder()
{
MoveType = ToolpathTypes.Cut
};
layer_builder.Initialize(Compiler.ToolPosition);
// To do a layer-change, we need to plunge down at the first scheduled cutting position.
// However we will not know that until we schedule the first set of paths.
// So, we configure SequentialScheduler2d to call this function when it knows this information,
// and then we can travel to the new XY position before we plunge to new Z
Action <List <FillCurveSet2d>, SequentialScheduler2d> DoZChangeF = (curves, scheduler) => {
Vector2d startPosXY = (curves[0].Loops.Count > 0) ?
curves[0].Loops[0].Start : curves[0].Curves[0].Start;
Vector3d startPosXYZ = new Vector3d(startPosXY.x, startPosXY.y, slice.Z);
// TODO: we should retract at faster speed here? maybe use custom function that does this better?
layer_builder.AppendTravel(startPosXYZ, PLUNGE_SPEED);
scheduler.OnAppendCurveSetsF = null;
};
SequentialScheduler2d layerScheduler = new SequentialScheduler2d(layer_builder, settings)
{
ExtrudeOnShortTravels = true,
ShortTravelDistance = settings.Machine.NozzleDiamMM * 1.5
};
layerScheduler.OnAppendCurveSetsF = DoZChangeF;
GroupScheduler2d groupScheduler = new GroupScheduler2d(layerScheduler, Compiler.ToolPosition.xy);
foreach (GeneralPolygon2d shape in slice.Solids)
{
ShellsFillPolygon shells_gen = new ShellsFillPolygon(shape)
{
PathSpacing = settings.ShellsFillPathSpacingMM(),
ToolWidth = settings.Machine.NozzleDiamMM,
Layers = 10,
OuterShellLast = false,
DiscardTinyPerimterLengthMM = 1, DiscardTinyPolygonAreaMM2 = 1
};
shells_gen.Compute();
groupScheduler.BeginGroup();
groupScheduler.AppendCurveSets(shells_gen.Shells);
groupScheduler.EndGroup();
}
Compiler.AppendPaths(layer_builder.Paths, settings);
AccumulatedPaths.Append(layer_builder.Paths);
}
/*
* Horizontal finish pass
*/
PlanarSliceStack horzSlices = sliceSets.HorizontalFinish;
int NH = horzSlices.Count;
// assuming origin is at top of stock so we actaully are going down in Z layers
for (int k = 0; k < NH; ++k)
{
horzSlices[k].Z = -(sliceSets.TopZ - horzSlices[k].Z);
}
for (int layeri = 0; layeri < NH; layeri++)
{
PlanarSlice slice = horzSlices[layeri];
Compiler.AppendComment(string.Format("horz finish layer {0} - {1}mm", layeri, slice.Z));
ToolpathSetBuilder layer_builder = new ToolpathSetBuilder()
{
MoveType = ToolpathTypes.Cut
};
layer_builder.Initialize(Compiler.ToolPosition);
Action <List <FillCurveSet2d>, SequentialScheduler2d> DoZChangeF = (curves, scheduler) => {
Vector2d startPosXY = (curves[0].Loops.Count > 0) ?
curves[0].Loops[0].Start : curves[0].Curves[0].Start;
Vector3d startPosXYZ = new Vector3d(startPosXY.x, startPosXY.y, slice.Z);
// TODO: we should retract at faster speed here? maybe use custom function that does this better?
layer_builder.AppendTravel(startPosXYZ, PLUNGE_SPEED);
scheduler.OnAppendCurveSetsF = null;
};
SequentialScheduler2d layerScheduler = new SequentialScheduler2d(layer_builder, settings)
{
ExtrudeOnShortTravels = true,
ShortTravelDistance = settings.Machine.NozzleDiamMM * 1.5
};
layerScheduler.OnAppendCurveSetsF = DoZChangeF;
GroupScheduler2d groupScheduler = new GroupScheduler2d(layerScheduler, Compiler.ToolPosition.xy);
foreach (GeneralPolygon2d shape in slice.Solids)
{
ShellsFillPolygon shells_gen = new ShellsFillPolygon(shape)
{
//InsetFromInputPolygonX = 0.0,
PathSpacing = settings.ShellsFillPathSpacingMM(),
ToolWidth = settings.Machine.NozzleDiamMM,
Layers = 10,
OuterShellLast = false,
PreserveInputInsetTopology = false,
DiscardTinyPerimterLengthMM = 1, DiscardTinyPolygonAreaMM2 = 1
};
shells_gen.Compute();
groupScheduler.BeginGroup();
groupScheduler.AppendCurveSets(shells_gen.Shells);
groupScheduler.EndGroup();
}
Compiler.AppendPaths(layer_builder.Paths, settings);
AccumulatedPaths.Append(layer_builder.Paths);
}
// return to home position
ToolpathSetBuilder finishBuilder = new ToolpathSetBuilder()
{
MoveType = ToolpathTypes.Cut
};
finishBuilder.Initialize(Compiler.ToolPosition);
finishBuilder.AppendTravel(Vector3d.Zero, PLUNGE_SPEED);
Compiler.AppendPaths(finishBuilder.Paths, settings);
Compiler.End();
return(file_accumulator.File);
}
