While I was playing at this ... I thinking at new project ... a printable qev valve .. next 3dprinting project ;)This video is rec with Olympus SH-2 camera.Check me out at:Blogger http://www.sgabolab.com/Google https://plus.google.com/ SgaboLabInstagram http://www.instagram.com/sgabolabThingiverse http://www.thingiverse.com/SgaboLab