What software do you use? What format should I use when I send you my design?
When we produce designs in-house, we use SolidWorks, so the best file format for us is a SolidWorks (.sldprt) file. In order of preference, other desirable file formats include Parasolid (.X_T) files, IGES (.igs) files, and STEP (.stp) files. We also accept ProEngineer files. If you do not have a computer-aided design (CAD) of your project, feel free to send us a pdf of whatever draft or sketch you have available. We can use that information along with your written description to make a 3D Solidworks model for you.
We also work from napkin sketches and existing parts if you do not have CAD files.