Build your own jet and check it out on http://www.youtube.com/watch?v=6rX4xv5-NvE
Put a pressure regulator on the air line or it will blow to bits!
You will need:
10 x 220 mm steel shaft
10 x 14 x 10 needle roller bearing (x 2)
10 x 22 x 6 bearing
10 x 30 x 9 bearing
10 x 24 x 9 thrust bearing (x 2)
14 x 20 x 96 Ali tube (you can print this but it might bend)
Made on an UP plus printer.
When making the air jets "pause the printer" and remove any support material.
Make the air jets with the jets at the bottom.
The perspex cover has a 10 degree fillet at the front
Drink Lots, Fall down more