Hi,i am dedy.e from indonesia,i am engineer and product design,i am interested with your project,i can help you for make 3d modelling adapter connect motor shaft,i needs few minute for do it,this very easy,i can send format file STL for support to 3d printing,i am not just design product but i experience in manufacture,cnc milling,cnc lathe,cnc rotuer,cnc lasercutting,3d printing,sheet metal,CAM(ONECNC,MASTERCAM),solidwork,i can provide format file STEP,IGES,DXF,DWG,PDF,etc,i am work in manufacture 13 years,and one more i not engineer outsource so we can comunication with fast cos i work myself,i hope we can work togheter,best regard Dedy.e