Remixed Avernois k40 air assist .Svg to work with my current setup. Very similar to his design, I just redesigned the armatures to accommodate my 8mm OD tubing and bike pump needle to get a better focus of the airflow on the material, and area being cut.
Be sure when assembling this, to start from the bottom and work your way up. Also the connector pieces (U shaped pieces) are intentionally by the original designers, slightly smaller than the surfaces they fit around. I found that using a pair of pliers to get even pressure when being put in place. This prevents damaging the material and breaking your process.
Also I attached the part to the gantry with a simple zip tie. Without using it, or something similar like an alligator clip, the part WILL fall off during operation. I found that a zip tie is a really sturdy connector, and also allows the part to be removed (not accidently) for maintenance or replacement.
Feel free to ask any questions or concerns in the comments!