Exiting flow with the fan running.

Some leakage is experienced as the positive pressure builds up in the nozzle, the smoke flows in both directions, though mostly forward and this will be less dramatic with the tunnel running.

The positioning system.

The delivery system is nearly complete at this stage, the fan needs a power source.

The first generation of the lighting system is finished. Refining measure would include getting the lights to stay in place better, make the lower level more flush with the top of the tunnel.