Dream Table - Subsidence - Group 1

The above sketch is a mock-up of the way we can show subsidence on our stream table we are developing. We want to have some sort of poles with a wider surface on the end. These will hold up a rubber membrane which the sediment is on. The poles can be adjusted so that they can move up and down. A simple way would be if the poles were screws and they were attached to a board farther down. This would give us the ability to simply screw up or down the poles. We would want the bottom of the box accessible so we could do so. I am sure there is a way to make the poles move vertically with some motor as well. We still need to decide how many sections/poles of the stream table we would want to be able to move.