Hi,i am Dedy.e from indonesia,i am engineer and product design,i am very interested with your project,i can help you for make 3d modelling your cup,i can send format file you needs as STEP / IGES,i just not design product but i experience in manufacture process,i work in manufacture 13 years,so all design think about how easy it is to make and produce,file can compatible to 3d printing machine,injection molding,and machining (cnc milling,cnc router,cnc lathe),i have few experience CNC milling,Cnc lathe,cnc router,cnc lasercutting,sheet metal,fabrication,3d printing,injection molding,bending,
i very happy if can help you for finish project,not a promise, i'am give definite results, results that will talk,your satisfaction is my goal,don't worry i not engineer outsource,I do all the work myself so we can comunication anytime,i hope we can work togheter,waiting for good news from you,Best-regard Dedy.e