Introducion: I found the Plan for the Edwards Radial 5 at "CRABCAD" the plan was "provided" as open cource by Robert Sigler. My decision was to convert the drawings to metric dimensions draw them with DesignCAD and machine it. Some drawings are modified, because I feel not convenient with Mr. Siglers solutions. When I draw the plan I was easy convicted to modify my small mill Optimum BF20 to a CNC version. Some of the parts are not realy able to realise with a conventional mill for example the cam disc. I started with the cam housing, and then with the crank housing.