I got tired of using the hand pump to inflate my inflatable paddle board, so I decided to let the air compressor do the work instead! This thing uses the air compressor mail connector thing (http://www.thingiverse.com/thing:12049), and tacks on a male thread adapter for fitting to the pump tube for the paddle board. At the time I made this, I had not been indoctrinated into the ways of OpenSCAD, so I did it in Sketchup. I've also included the Sketchup source here as well.I was able to print this thing pretty fast (120mm/s) with PLA, and so far it's held up well, the few times I've used it. The walls are plenty thick (at 100% fill), and the pressure for the paddle board is only about 16 psi. I used a brim to make sure it didn't get torn off the bed at the higher layers. For greater durability, for frequent use, nylon would probably be a better choice.