Greeting,
Hello there?i am engineer and product design,i am have several experience make design and manufacture,i am very interested with your project,i am can help you for repair your modelling blade turbin,i have check your file stl and dwg,,please chat me we can discuss more detail,i am can start work right now if you award me,i'll send best result and i am guaranted,i am can provide format file you needs as file STEP,IGES,DXF,DWG,STL,OBJ and etc,file reasy to 3d printing or manufacture,injection mold and machining,hope we can work togheter and very happy if can help you,thanks Dedy.e