Making the Sliding Aspect

Procedure:

1. Cut small piece of cardboard .5cm bigger than the diameter
2. Drill a hole in it, just so that the screw is able to fit 
3. Put this piece of cardboard along with the screw to the middle to the bottom row
4. Place a small hollow box underneath, also with a hole the size of the screw
5. The should be able to fit through the longer hole and the sundae box is attached to the bottom
6. The washer is then placed to secure the cardboard piece, screw and box in place
7. Finally, test to see if the connect-4 board is able to move, if not, loosen the washer