private void writeGCode(LayerDataStorage slicingData) { gcode.WriteComment("filamentDiameter = {0}".FormatWith(config.FilamentDiameter)); gcode.WriteComment("extrusionWidth = {0}".FormatWith(config.ExtrusionWidth)); gcode.WriteComment("firstLayerExtrusionWidth = {0}".FormatWith(config.FirstLayerExtrusionWidth)); gcode.WriteComment("layerThickness = {0}".FormatWith(config.LayerThickness)); gcode.WriteComment("firstLayerThickness = {0}".FormatWith(config.FirstLayerThickness)); if (fileNumber == 1) { gcode.WriteCode(config.StartCode); } else { gcode.WriteFanCommand(0); gcode.ResetExtrusionValue(); gcode.WriteRetraction(); gcode.setZ(maxObjectHeight + 5000); gcode.WriteMove(gcode.GetPosition(), config.TravelSpeed, 0); gcode.WriteMove(new Point3(slicingData.modelMin.x, slicingData.modelMin.y, gcode.CurrentZ), config.TravelSpeed, 0); } fileNumber++; int totalLayers = slicingData.Extruders[0].Layers.Count; if (config.outputOnlyFirstLayer) { totalLayers = 1; } // let's remove any of the layers on top that are empty { for (int layerIndex = totalLayers - 1; layerIndex >= 0; layerIndex--) { bool layerHasData = false; foreach (ExtruderLayers currentExtruder in slicingData.Extruders) { SliceLayer currentLayer = currentExtruder.Layers[layerIndex]; for (int partIndex = 0; partIndex < currentExtruder.Layers[layerIndex].Islands.Count; partIndex++) { LayerIsland currentIsland = currentLayer.Islands[partIndex]; if (currentIsland.IslandOutline.Count > 0) { layerHasData = true; break; } } } if (layerHasData) { break; } totalLayers--; } } gcode.WriteComment("Layer count: {0}".FormatWith(totalLayers)); // keep the raft generation code inside of raft slicingData.WriteRaftGCodeIfRequired(gcode, config); for (int layerIndex = 0; layerIndex < totalLayers; layerIndex++) { if (MatterSlice.Canceled) { return; } if(config.outputOnlyFirstLayer && layerIndex > 0) { break; } LogOutput.Log("Writing Layers {0}/{1}\n".FormatWith(layerIndex + 1, totalLayers)); LogOutput.logProgress("export", layerIndex + 1, totalLayers); if (layerIndex == 0) { skirtConfig.SetData(config.FirstLayerSpeed, config.FirstLayerExtrusionWidth_um, "SKIRT"); inset0Config.SetData(config.FirstLayerSpeed, config.FirstLayerExtrusionWidth_um, "WALL-OUTER"); insetXConfig.SetData(config.FirstLayerSpeed, config.FirstLayerExtrusionWidth_um, "WALL-INNER"); fillConfig.SetData(config.FirstLayerSpeed, config.FirstLayerExtrusionWidth_um, "FILL", false); topFillConfig.SetData(config.FirstLayerSpeed, config.FirstLayerExtrusionWidth_um, "TOP-FILL", false); bottomFillConfig.SetData(config.FirstLayerSpeed, config.FirstLayerExtrusionWidth_um, "BOTTOM-FILL", false); airGappedBottomConfig.SetData(config.FirstLayerSpeed, config.FirstLayerExtrusionWidth_um, "AIR-GAP", false); bridgeConfig.SetData(config.FirstLayerSpeed, config.FirstLayerExtrusionWidth_um, "BRIDGE"); supportNormalConfig.SetData(config.FirstLayerSpeed, config.SupportExtrusionWidth_um, "SUPPORT"); supportInterfaceConfig.SetData(config.FirstLayerSpeed, config.ExtrusionWidth_um, "SUPPORT-INTERFACE"); } else { skirtConfig.SetData(config.InsidePerimetersSpeed, config.ExtrusionWidth_um, "SKIRT"); inset0Config.SetData(config.OutsidePerimeterSpeed, config.OutsideExtrusionWidth_um, "WALL-OUTER"); insetXConfig.SetData(config.InsidePerimetersSpeed, config.ExtrusionWidth_um, "WALL-INNER"); fillConfig.SetData(config.InfillSpeed, config.ExtrusionWidth_um, "FILL", false); topFillConfig.SetData(config.TopInfillSpeed, config.ExtrusionWidth_um, "TOP-FILL", false); bottomFillConfig.SetData(config.InfillSpeed, config.ExtrusionWidth_um, "BOTTOM-FILL", false); airGappedBottomConfig.SetData(config.FirstLayerSpeed, config.ExtrusionWidth_um, "AIR-GAP", false); bridgeConfig.SetData(config.BridgeSpeed, config.ExtrusionWidth_um, "BRIDGE"); supportNormalConfig.SetData(config.SupportMaterialSpeed, config.SupportExtrusionWidth_um, "SUPPORT"); supportInterfaceConfig.SetData(config.FirstLayerSpeed - 1, config.ExtrusionWidth_um, "SUPPORT-INTERFACE"); } gcode.WriteComment("LAYER:{0}".FormatWith(layerIndex)); if (layerIndex == 0) { gcode.SetExtrusion(config.FirstLayerThickness_um, config.FilamentDiameter_um, config.ExtrusionMultiplier); } else { gcode.SetExtrusion(config.LayerThickness_um, config.FilamentDiameter_um, config.ExtrusionMultiplier); } GCodePlanner gcodeLayer = new GCodePlanner(gcode, config.TravelSpeed, config.MinimumTravelToCauseRetraction_um, config.PerimeterStartEndOverlapRatio); if (layerIndex == 0 && config.RetractionZHop > 0) { gcodeLayer.ForceRetract(); } // get the correct height for this layer int z = config.FirstLayerThickness_um + layerIndex * config.LayerThickness_um; if (config.EnableRaft) { z += config.RaftBaseThickness_um + config.RaftInterfaceThicknes_um + config.RaftSurfaceLayers * config.RaftSurfaceThickness_um; if (layerIndex == 0) { // We only raise the first layer of the print up by the air gap. // To give it: // Less press into the raft // More time to cool // more surface area to air while extruding z += config.RaftAirGap_um; } } gcode.setZ(z); // We only create the skirt if we are on layer 0. if (layerIndex == 0 && !config.ShouldGenerateRaft()) { QueueSkirtToGCode(slicingData, gcodeLayer, layerIndex); } int fanSpeedPercent = GetFanSpeed(layerIndex, gcodeLayer); for (int extruderIndex = 0; extruderIndex < config.MaxExtruderCount(); extruderIndex++) { int prevExtruder = gcodeLayer.GetExtruder(); bool extruderChanged = gcodeLayer.SetExtruder(extruderIndex); if (extruderChanged) { slicingData.PrimeOnWipeTower(extruderIndex, layerIndex, gcodeLayer, fillConfig, config); //Make sure we wipe the old extruder on the wipe tower. gcodeLayer.QueueTravel(slicingData.wipePoint - config.ExtruderOffsets[prevExtruder] + config.ExtruderOffsets[gcodeLayer.GetExtruder()]); } if (layerIndex == 0) { QueueExtruderLayerToGCode(slicingData, gcodeLayer, extruderIndex, layerIndex, config.FirstLayerExtrusionWidth_um, z); } else { QueueExtruderLayerToGCode(slicingData, gcodeLayer, extruderIndex, layerIndex, config.ExtrusionWidth_um, z); } if (slicingData.support != null) { if ((config.SupportExtruder <= 0 && extruderIndex == 0) || config.SupportExtruder == extruderIndex) { slicingData.support.QueueNormalSupportLayer(config, gcodeLayer, layerIndex, supportNormalConfig); } if ((config.SupportInterfaceExtruder <= 0 && extruderIndex == 0) || config.SupportInterfaceExtruder == extruderIndex) { slicingData.support.QueueInterfaceSupportLayer(config, gcodeLayer, layerIndex, supportInterfaceConfig); } } } slicingData.EnsureWipeTowerIsSolid(layerIndex, gcodeLayer, fillConfig, config); if (slicingData.support != null) { z += config.SupportAirGap_um; gcode.setZ(z); gcodeLayer.QueueTravel(gcodeLayer.LastPosition); for (int extruderIndex = 0; extruderIndex < slicingData.Extruders.Count; extruderIndex++) { QueueAirGappedExtruderLayerToGCode(slicingData, gcodeLayer, extruderIndex, layerIndex, config.ExtrusionWidth_um, z); } slicingData.support.QueueAirGappedBottomLayer(config, gcodeLayer, layerIndex, airGappedBottomConfig); } //Finish the layer by applying speed corrections for minimum layer times. gcodeLayer.ForceMinimumLayerTime(config.MinimumLayerTimeSeconds, config.MinimumPrintingSpeed); gcode.WriteFanCommand(fanSpeedPercent); int currentLayerThickness_um = config.LayerThickness_um; if (layerIndex <= 0) { currentLayerThickness_um = config.FirstLayerThickness_um; } // Move to the best point for the next layer if (!config.ContinuousSpiralOuterPerimeter && layerIndex > 0 && layerIndex < totalLayers - 2) { // Figure out where the seam hiding start point is for inset 0 and move to that spot so // we have the minimum travel while starting inset 0 after printing the rest of the insets SliceLayer layer = slicingData?.Extruders?[0]?.Layers?[layerIndex + 1]; if (layer.Islands.Count == 1) { LayerIsland island = layer?.Islands?[0]; if (island?.InsetToolPaths?[0]?[0]?.Count > 0) { int bestPoint = PathOrderOptimizer.GetBestIndex(island.InsetToolPaths[0][0], config.ExtrusionWidth_um); gcodeLayer.SetOuterPerimetersToAvoidCrossing(island.AvoidCrossingBoundary); gcodeLayer.QueueTravel(island.InsetToolPaths[0][0][bestPoint]); // Now move up to the next layer so we don't start the extrusion one layer too low. gcode.setZ(z + config.LayerThickness_um); gcodeLayer.QueueTravel(island.InsetToolPaths[0][0][bestPoint]); } } } gcodeLayer.WriteQueuedGCode(currentLayerThickness_um, fanSpeedPercent, config.BridgeFanSpeedPercent); } LogOutput.Log("Wrote layers in {0:0.00}s.\n".FormatWith(timeKeeper.Elapsed.TotalSeconds)); timeKeeper.Restart(); gcode.TellFileSize(); gcode.WriteFanCommand(0); //Store the object height for when we are printing multiple objects, as we need to clear every one of them when moving to the next position. maxObjectHeight = Math.Max(maxObjectHeight, slicingData.modelSize.z); }
//Add a single layer from a single extruder to the GCode private void QueueAirGappedExtruderLayerToGCode(LayerDataStorage slicingData, GCodePlanner gcodeLayer, int extruderIndex, int layerIndex, int extrusionWidth_um, long currentZ_um) { if (config.GenerateSupport && !config.ContinuousSpiralOuterPerimeter && layerIndex > 0) { int prevExtruder = gcodeLayer.GetExtruder(); bool extruderChanged = gcodeLayer.SetExtruder(extruderIndex); SliceLayer layer = slicingData.Extruders[extruderIndex].Layers[layerIndex]; PathOrderOptimizer partOrderOptimizer = new PathOrderOptimizer(new IntPoint()); for (int partIndex = 0; partIndex < layer.Islands.Count; partIndex++) { if (config.ContinuousSpiralOuterPerimeter && partIndex > 0) { continue; } partOrderOptimizer.AddPolygon(layer.Islands[partIndex].InsetToolPaths[0][0]); } partOrderOptimizer.Optimize(); List<Polygons> bottomFillIslandPolygons = new List<Polygons>(); for (int inlandIndex = 0; inlandIndex < partOrderOptimizer.bestIslandOrderIndex.Count; inlandIndex++) { if (config.ContinuousSpiralOuterPerimeter && inlandIndex > 0) { continue; } LayerIsland part = layer.Islands[partOrderOptimizer.bestIslandOrderIndex[inlandIndex]]; if (config.AvoidCrossingPerimeters) { gcodeLayer.SetOuterPerimetersToAvoidCrossing(part.AvoidCrossingBoundary); } else { gcodeLayer.SetAlwaysRetract(true); } Polygons fillPolygons = new Polygons(); Polygons topFillPolygons = new Polygons(); Polygons bridgePolygons = new Polygons(); Polygons bottomFillPolygons = new Polygons(); CalculateInfillData(slicingData, extruderIndex, layerIndex, part, bottomFillPolygons, fillPolygons, topFillPolygons, bridgePolygons); bottomFillIslandPolygons.Add(bottomFillPolygons); #if DEBUG if (bridgePolygons.Count > 0) { new Exception("Unexpected bridge polygons in air gapped region"); } #endif if (config.NumberOfPerimeters > 0) { if (inlandIndex != lastPartIndex) { // force a retract if changing islands if (config.RetractWhenChangingIslands) { gcodeLayer.ForceRetract(); } lastPartIndex = inlandIndex; } if (config.ContinuousSpiralOuterPerimeter) { if (layerIndex >= config.NumberOfBottomLayers) { inset0Config.spiralize = true; } } } //After a layer part, make sure the nozzle is inside the comb boundary, so we do not retract on the perimeter. if (!config.ContinuousSpiralOuterPerimeter || layerIndex < config.NumberOfBottomLayers) { gcodeLayer.MoveInsideTheOuterPerimeter(extrusionWidth_um * 2); } // Print everything but the first perimeter from the outside in so the little parts have more to stick to. for (int insetIndex = 1; insetIndex < part.InsetToolPaths.Count; insetIndex++) { QueuePolygonsConsideringSupport(layerIndex, gcodeLayer, part.InsetToolPaths[insetIndex], airGappedBottomConfig, SupportWriteType.SupportedAreas); } // then 0 if (part.InsetToolPaths.Count > 0) { QueuePolygonsConsideringSupport(layerIndex, gcodeLayer, part.InsetToolPaths[0], airGappedBottomConfig, SupportWriteType.SupportedAreas); } QueuePolygonsConsideringSupport(layerIndex, gcodeLayer, bottomFillIslandPolygons[inlandIndex], airGappedBottomConfig, SupportWriteType.SupportedAreas); } } gcodeLayer.SetOuterPerimetersToAvoidCrossing(null); }