I have taught industrial design at Eindhoven University of Technology and we have been using 3D printers there for over 10 years. For quick iterations FFF printers are used, for high definition and multimaterial models there is an Objet Connex. I am currently doing freelance design projects for local and clients abroad, and still willing to take up teaching jobs if the opportunity arises.

Operating a 3D printer is a quite specialized job if you want to do it well. Therefore I recommend installing just one or two people to gain expertise with the machines.
A weekend class can give a good basis if a lot of areas around 3D printing are covered, and targeted to specific application areas. In the end it is an ongoing project to operate a 3D printer and will require a lot of dedication.