CAD (Computer Aided Design) is a way to make ideas and replicate objects. we use Fusion 360, a user friendly program to make CAD and export to 3D printers, CNC machines, water jet cutters, and more!
We made some of our robot design in Fusion 360 and had them water jet cut! We also 3D print custom parts using a MakerBot. If you would like to learn more about how to use Fusion 360 try watching this playlist of videos: fusion360 for beginners we hope this helps you learn more about it how to use Fusion 360