Hi sir?i am prefisional engineer,i can help you for make 3d modelling your product ,i can send format file you needs and ready to 3d printing machine,we can discuss more detail about it,i will send good result and hight quality with good time line,i expert in make 3d modelling and 2 drawing,also i expert in machining process so all design can be made in manufacture or machining,i expert in cnc milling,cnc lasercutting,lathe,cnc router,fabrication and etc,all jobs i work myself so we can discuss any time,i not engineer outsource,i hope we can work togheter and i very happy if can help you,i wait your replay,thanks Dedy,e