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 make CAD 3d modelling and drawing your box tactile,please let me know detail your requirment,i'll send best result,i am can provide format file you needs,as STEP,IGES,STL,OBJ,DXF,DWG and etx,hope we can work togheter,Thanks Dedy.e