diff --git a/examples/ILDExDet/include/GearWrapper.h b/examples/ILDExDet/include/GearWrapper.h
new file mode 100644
index 0000000000000000000000000000000000000000..ce4304bda90ff368c7f5a9997a985489fc1ed2fc
--- /dev/null
+++ b/examples/ILDExDet/include/GearWrapper.h
@@ -0,0 +1,60 @@
+#ifndef GearWrapper_H
+#define GearWrapper_H
+//====================================================================
+
+#include "DD4hep/Detector.h"
+//#include "DD4hepExceptions.h" 
+
+#include "gear/GEAR.h"
+#include "gear/TPCParameters.h"
+#include "gearimpl/TPCParametersImpl.h"
+#include "gearimpl/ZPlanarParametersImpl.h"
+
+namespace DD4hep {
+
+
+
+  
+  //// generic wrapper class for gear::XXXParametersImpl:
+  //template <class GEAR>
+  //struct GearWrapper : public GEAR {
+  //  // required c'tors for extension mechanism
+  //  GearWrapper(const Geometry::DetElement& d){}
+  //  GearWrapper(const GearWrapper<GEAR>& c,const Geometry::DetElement& det){}
+  //} ;
+  //
+  //// specialized c'tor
+  //template <>
+  //GearWrapper<gear::TPCParametersImpl>( double maxDriftLength, int coordinateType ) 
+  //: gear::TPCParametersImpl(  maxDriftLength, coordinateType){ }
+  //
+  //typedef GearWrapper<gear::TPCParametersImpl> GearTPCParameters ;
+
+  // wrapper class for gear::TPCParametersImpl:
+  struct GearTPCParameters : public gear::TPCParametersImpl {
+    // required c'tors for extension mechanism
+    GearTPCParameters(const Geometry::DetElement& d){}
+    GearTPCParameters(const GearTPCParameters& c,const Geometry::DetElement& det){}
+    GearTPCParameters( double maxDriftLength, int coordinateType ) : gear::TPCParametersImpl(  maxDriftLength, coordinateType){}
+  } ;
+  
+  
+  struct GearZPlanarParameters : public gear::ZPlanarParametersImpl {
+    
+    // required c'tors for extension mechanism
+    
+    GearZPlanarParameters(const Geometry::DetElement& d) : gear::ZPlanarParametersImpl(ZPlanarParametersImpl::CMOS,0,0,0,0,0) {}
+    
+    GearZPlanarParameters(const GearZPlanarParameters& c,const Geometry::DetElement& det)
+      : gear::ZPlanarParametersImpl(ZPlanarParametersImpl::CMOS,0,0,0,0,0) {}
+    
+    GearZPlanarParameters( int type=ZPlanarParametersImpl::CMOS, 
+   			   double shellInnerRadius=0., double shellOuterRadius=0., 
+   			   double shellHalfLength=0.,  double shellGap=0., double shellRadLength=0.) 
+      : gear::ZPlanarParametersImpl( type, shellInnerRadius, shellOuterRadius,
+   				     shellHalfLength, shellGap, shellRadLength ){}
+  } ;
+  
+}
+
+#endif