diff --git a/src/Mod/Path/PathSimulator/App/VolSim.cpp b/src/Mod/Path/PathSimulator/App/VolSim.cpp
index 85185814bf..bc46e76b47 100644
--- a/src/Mod/Path/PathSimulator/App/VolSim.cpp
+++ b/src/Mod/Path/PathSimulator/App/VolSim.cpp
@@ -783,11 +783,14 @@ cSimTool::cSimTool(const TopoDS_Shape& toolShape, float res){
 
 float cSimTool::GetToolProfileAt(float pos)  // pos is -1..1 location along the radius of the tool (0 is center)
 {
-	float radPos = std::abs(pos) * radius;
-	toolShapePoint test; test.radiusPos = radPos;
-	auto it = std::lower_bound(m_toolShape.begin(), m_toolShape.end(), test, toolShapePoint::less_than());
-
-	return it->heightPos;
+	try{
+		float radPos = std::abs(pos) * radius;
+		toolShapePoint test; test.radiusPos = radPos;
+		auto it = std::lower_bound(m_toolShape.begin(), m_toolShape.end(), test, toolShapePoint::less_than());
+		return it->heightPos;
+	}catch(...){
+		return 0;
+	}
 }
 
 bool cSimTool::isInside(const TopoDS_Shape& toolShape, Base::Vector3d pnt, float res)