XYZ Da Vinci 1.0A Part Cooling Duct

This part cooling duct snakes its way underneath the carriage between the timing belts of the x-axis to the extrusion head. It has been designed to force two streams of air at the tip of the extrusion head. I've tried to get those streams of air perpendicular to one another.
The duct is designed to have a piece of tubing inserted into one side, which can exit the printer through the opening roof panel. That tube can then be connected to whatever means of pressurising air you have. I have found