[daliberator]

In the past two years, my team has been working to get more CAD involved in our build process. I think that if you have the time, it is an extremely valuable tool for anyone on the team to know. If a student on our team learns CAD, it allows that to articulate their ideas better, and they become more engaged with the design of the robot.
One thing that I think is very important to keep in mind is that CAD skills != mechanical design skills. CAD is not a silver bullet that will transform your team into a powerhouse. Learning it has been fun and allows people to experiment with geometries and apply their design skills in a way that could not be done on paper. It is an amazing tool for robot design, but even the best tool in the world is useless unless the person using it know what they're doing.