Made the save stl in preview have better asyc early in save.

Made the support everywhere curaengine setting work

PartPreviewWindow/View3DTransfromPart.cs

@@ -1385,9 +1385,6 @@ namespace MatterHackers.MatterControl.PartPreviewWindow
                 processingProgressControl.PercentComplete = 0;
                 LockEditControls();
 
-                // we sent the data to the asynch lists but we will not pull it back out (only use it as a temp holder).
-                PushMeshDataToAsynchLists(true);
-
                 BackgroundWorker mergeAndSavePartsBackgroundWorker = new BackgroundWorker();
                 mergeAndSavePartsBackgroundWorker.WorkerReportsProgress = true;
 
@@ -1401,6 +1398,9 @@ namespace MatterHackers.MatterControl.PartPreviewWindow
 
         void mergeAndSavePartsBackgroundWorker_DoWork(object sender, DoWorkEventArgs e)
         {
+            // we sent the data to the asynch lists but we will not pull it back out (only use it as a temp holder).
+            PushMeshDataToAsynchLists(true);
+
             Thread.CurrentThread.CurrentCulture = CultureInfo.InvariantCulture;
             BackgroundWorker backgroundWorker = (BackgroundWorker)sender;
             try

SliceConfiguration/CuraEnginMappings.cs

@@ -69,7 +69,7 @@ namespace MatterHackers.MatterControl
             new ScaledSingleNumber("supportLineDistance", "support_material_spacing", 1000),
             new SupportMatterial("supportAngle", "support_material"),
             new NotPassedItem("", "support_material_threshold"),
-            //new ScaledSingleNumber(supportEverywhere);
+            new MapItem("supportEverywhere", "support_material_create_internal_support"),
             new ScaledSingleNumber("supportXYDistance", "support_material_xy_distance", 1000),
             new ScaledSingleNumber("supportZDistance", "support_material_z_distance", 1000),
 

StaticData/PrinterSettings/config.ini

@@ -94,6 +94,7 @@ start_perimeters_at_concave_points = 0
 start_perimeters_at_non_overhang = 0
 support_material = 0
 support_material_angle = 0
+support_material_create_internal_support = 0
 support_material_enforce_layers = 0
 support_material_extruder = 1
 support_material_extrusion_width = 0

StaticData/SliceSettings/Layouts.txt

@@ -111,6 +111,7 @@ Advanced
         support_material_interface_spacing
         support_material_xy_distance
         support_material_z_distance
+        support_material_create_internal_support
     Notes
       Notes
         notes

StaticData/SliceSettings/Properties.txt

@@ -94,6 +94,7 @@ start_gcode|Start G-Code|MULTI_LINE_TEXT||This gcode will be inserted into the o
 start_perimeters_at_concave_points|Start At Concave Points|CHECK_BOX||Make sure the first point on a perimeter is a concave point.
 start_perimeters_at_non_overhang|Start At Non Overhang|CHECK_BOX||Make sure the first point on a perimeter is not an overhang.
 support_material_angle|Pattern Angle|POSITVE_DOUBLE|degrees|The starting angle of the supports.
+support_material_create_internal_support|Internal Support|CHECK_BOX||Create support where needed on internal features.
 support_material_enforce_layers|Enforce Support For First|INT|layers|Generate support material everywhere not touching the bed for n layers, regardless of angle.
 support_material_extruder|Support Material Extruder|INT||The index of the extruder to use for support material.
 support_material_extrusion_width|Support Material|DOUBLE_OR_PERCENT|mm or %\nleave 0 for default|Leave this as 0 to allow automatic calculation of extrusion width.