public void WriteRaftGCodeIfRequired(GCodeExport gcode, ConfigSettings config) { LayerDataStorage storage = this; if (config.ShouldGenerateRaft()) { GCodePathConfig raftBaseConfig = new GCodePathConfig("raftBaseConfig"); raftBaseConfig.SetData(config.FirstLayerSpeed, config.RaftBaseExtrusionWidth_um, "SUPPORT"); GCodePathConfig raftMiddleConfig = new GCodePathConfig("raftMiddleConfig"); raftMiddleConfig.SetData(config.RaftPrintSpeed, config.RaftInterfaceExtrusionWidth_um, "SUPPORT"); GCodePathConfig raftSurfaceConfig = new GCodePathConfig("raftMiddleConfig"); raftSurfaceConfig.SetData((config.RaftSurfacePrintSpeed > 0) ? config.RaftSurfacePrintSpeed : config.RaftPrintSpeed, config.RaftSurfaceExtrusionWidth_um, "SUPPORT"); // create the raft base { gcode.WriteComment("RAFT BASE"); GCodePlanner gcodeLayer = new GCodePlanner(gcode, config.TravelSpeed, config.MinimumTravelToCauseRetraction_um, config.PerimeterStartEndOverlapRatio); if (config.RaftExtruder >= 0) { // if we have a specified raft extruder use it gcodeLayer.SetExtruder(config.RaftExtruder); } else if (config.SupportExtruder >= 0) { // else preserve the old behavior of using the support extruder if set. gcodeLayer.SetExtruder(config.SupportExtruder); } gcode.SetZ(config.RaftBaseThickness_um); gcode.LayerChanged(-3); gcode.SetExtrusion(config.RaftBaseThickness_um, config.FilamentDiameter_um, config.ExtrusionMultiplier); // write the skirt around the raft gcodeLayer.QueuePolygonsByOptimizer(storage.skirt, raftBaseConfig); List <Polygons> raftIslands = storage.raftOutline.ProcessIntoSeparatIslands(); foreach (var raftIsland in raftIslands) { // write the outline of the raft gcodeLayer.QueuePolygonsByOptimizer(raftIsland, raftBaseConfig); Polygons raftLines = new Polygons(); Infill.GenerateLinePaths(raftIsland.Offset(-config.RaftBaseExtrusionWidth_um), raftLines, config.RaftBaseLineSpacing_um, config.InfillExtendIntoPerimeter_um, 0); // write the inside of the raft base gcodeLayer.QueuePolygonsByOptimizer(raftLines, raftBaseConfig); if (config.RetractWhenChangingIslands) { gcodeLayer.ForceRetract(); } } gcodeLayer.WriteQueuedGCode(config.RaftBaseThickness_um); } if (config.RaftFanSpeedPercent > 0) { gcode.WriteFanCommand(config.RaftFanSpeedPercent); } // raft middle layers { gcode.WriteComment("RAFT MIDDLE"); GCodePlanner gcodeLayer = new GCodePlanner(gcode, config.TravelSpeed, config.MinimumTravelToCauseRetraction_um, config.PerimeterStartEndOverlapRatio); gcode.SetZ(config.RaftBaseThickness_um + config.RaftInterfaceThicknes_um); gcode.LayerChanged(-2); gcode.SetExtrusion(config.RaftInterfaceThicknes_um, config.FilamentDiameter_um, config.ExtrusionMultiplier); Polygons raftLines = new Polygons(); Infill.GenerateLinePaths(storage.raftOutline, raftLines, config.RaftInterfaceLineSpacing_um, config.InfillExtendIntoPerimeter_um, 45); gcodeLayer.QueuePolygonsByOptimizer(raftLines, raftMiddleConfig); gcodeLayer.WriteQueuedGCode(config.RaftInterfaceThicknes_um); } for (int raftSurfaceIndex = 1; raftSurfaceIndex <= config.RaftSurfaceLayers; raftSurfaceIndex++) { gcode.WriteComment("RAFT SURFACE"); GCodePlanner gcodeLayer = new GCodePlanner(gcode, config.TravelSpeed, config.MinimumTravelToCauseRetraction_um, config.PerimeterStartEndOverlapRatio); gcode.SetZ(config.RaftBaseThickness_um + config.RaftInterfaceThicknes_um + config.RaftSurfaceThickness_um * raftSurfaceIndex); gcode.LayerChanged(-1); gcode.SetExtrusion(config.RaftSurfaceThickness_um, config.FilamentDiameter_um, config.ExtrusionMultiplier); Polygons raftLines = new Polygons(); if (raftSurfaceIndex == config.RaftSurfaceLayers) { // make sure the top layer of the raft is 90 degrees offset to the first layer of the part so that it has minimum contact points. Infill.GenerateLinePaths(storage.raftOutline, raftLines, config.RaftSurfaceLineSpacing_um, config.InfillExtendIntoPerimeter_um, config.InfillStartingAngle + 90); } else { Infill.GenerateLinePaths(storage.raftOutline, raftLines, config.RaftSurfaceLineSpacing_um, config.InfillExtendIntoPerimeter_um, 90 * raftSurfaceIndex); } gcodeLayer.QueuePolygonsByOptimizer(raftLines, raftSurfaceConfig); gcodeLayer.WriteQueuedGCode(config.RaftInterfaceThicknes_um); } } }