<html><head></head><body><div style="color:#000; background-color:#fff; font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1504811411415_9222">My own experience with 3D printers is that they cannot be used for air. The inter-layer bonding is prone to having small air gaps. Bonding between layers is also not that great. I can easily seeing even fairly moderate air pressure, blowing a 3D print up.</div><div id="yui_3_16_0_ym19_1_1504811411415_9221"><br></div><div id="yui_3_16_0_ym19_1_1504811411415_9192" dir="ltr">Another source for press-on fittings is Coast Pneumatics.www.coastpneumatics.com I found some relatively low cost versions there once. There on-line catalog leaves a lot to be desired, but they carry a lot more than what you see on line, if you call them.<br></div><div id="yui_3_16_0_ym19_1_1504811411415_9301"><br></div><div id="yui_3_16_0_ym19_1_1504811411415_9357">Also, note that other words are sometimes used to describe the "Press-on" fittings that is the more generic term. Speedfit is one. Coast Pneumatics calls their general category "Push quick fittings"<br></div><div id="yui_3_16_0_ym19_1_1504811411415_9445"><br></div><div id="yui_3_16_0_ym19_1_1504811411415_9354">-Joe<br></div></div></body></html>