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diff --git a/org.simantics.g3d.csg/src/org/simantics/g3d/csg/wizard/CSGBrepModelExporter.java b/org.simantics.g3d.csg/src/org/simantics/g3d/csg/wizard/CSGBrepModelExporter.java
new file mode 100644
index 00000000..8e00a3de
--- /dev/null
+++ b/org.simantics.g3d.csg/src/org/simantics/g3d/csg/wizard/CSGBrepModelExporter.java
@@ -0,0 +1,98 @@
+package org.simantics.g3d.csg.wizard;
+
+import java.io.IOException;
+import java.lang.reflect.InvocationTargetException;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.SubMonitor;
+import org.eclipse.jface.operation.IRunnableWithProgress;
+import org.jcae.opencascade.jni.TopoDS_Shape;
+import org.simantics.Simantics;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.request.Read;
+import org.simantics.g3d.csg.scenegraph2.CSGrootNode;
+import org.simantics.g3d.csg.scenegraph2.ICSGnode;
+import org.simantics.g3d.csg.scenegraph2.SchemaBuilder;
+import org.simantics.objmap.graph.IMapping;
+import org.simantics.objmap.graph.Mappings;
+import org.simantics.objmap.graph.schema.IMappingSchema;
+import org.simantics.opencascade.OccTriangulator;
+
+public class CSGBrepModelExporter implements IRunnableWithProgress {
+
+		CSGExportModel exportModel;
+		public CSGBrepModelExporter(CSGExportModel exportModel) {
+			this.exportModel = exportModel;
+		}
+		
+		@Override
+		public void run(IProgressMonitor monitor) throws InvocationTargetException,
+				InterruptedException {
+			 SubMonitor progress = SubMonitor.convert(monitor, 50);
+			 SubMonitor mon = progress.newChild(50, SubMonitor.SUPPRESS_NONE);
+		        try {
+		            exportModel(mon);
+		        } catch (IOException e) {
+		        	mon.setCanceled(true);
+		            throw new InvocationTargetException(e);
+		        } catch (DatabaseException e) {
+		        	mon.setCanceled(true);
+		            throw new InvocationTargetException(e);
+		        }  finally {
+		            monitor.done();
+		        }
+			
+		}
+
+		void exportModel(SubMonitor mon) throws IOException, DatabaseException {
+			int taskSize = 50;
+			mon.beginTask("Exporting model...", taskSize);
+			mon.setTaskName("Initializing CSG model...");
+			
+			CSGrootNode rootNode = Simantics.getSessionContext().getSession().syncRequest(new Read<CSGrootNode>() {
+				@Override
+				public CSGrootNode perform(ReadGraph graph)
+						throws DatabaseException {
+					IMappingSchema<Resource, Object> schema = SchemaBuilder.getSchema(graph);
+					IMapping<Resource, Object> mapping = Mappings.createWithoutListening(schema);
+					CSGrootNode rootNode = (CSGrootNode) mapping.map(graph,exportModel.getModel().getResource());
+					mapping.dispose();
+					return rootNode;
+				}
+			});
+			mon.worked(40);
+			
+			mon.setTaskName("Creating solid geometry...");
+			List<TopoDS_Shape> shapes = new ArrayList<TopoDS_Shape>();
+			for (ICSGnode node : rootNode.getChild()) {
+				TopoDS_Shape shape = node.getGeometry();
+				if (shape != null)
+					shapes.add(shape);
+			}
+			if (shapes.size() == 0) {
+				mon.setTaskName("Nothing to export.");
+				mon.setCanceled(true);
+				return;
+			}
+			TopoDS_Shape compound = null;
+			if (shapes.size() > 1) {
+				OccTriangulator.makeCompound(shapes.toArray(new TopoDS_Shape[shapes.size()]));
+				for (TopoDS_Shape shape : shapes)
+					shape.delete();
+			} else {
+				compound = shapes.get(0);
+			}
+			
+			mon.worked(50);
+			
+			mon.setTaskName("Writing file...");
+			OccTriangulator.exportBREP(compound, exportModel.getExportLocation().getAbsolutePath());
+			compound.delete();
+			
+			mon.setWorkRemaining(0);
+		}
+}