Least year our electrical platter was a combination of two thin aluminum plates and mounting electronics directly onto the frame of our robot. We had no issues with this design. The one thing worth mentioning is that we created a field of electrical tape on the plate by cutting a large square out of strips. It was used to insulate the Crio from the aluminum plate. We also mounted the Crio with nylon screws to absolutely be sure that the whole area was insulated.
