3D printing QEV valve .. it works but .. unexpected problem from plastic

Another experimen from SgaboLab and own 3D printer .. :D More details on http://www.sgabolab.com/2016/05/3dprinting-qu… - You can support me by buying one of my models https://www.cgtrader.com/sgabolab or with PayPal donation https://www.paypal.com/paypalme/sgabolab/5 thanks - Check me out: CGTrader Shop https://www.cgtrader.com/sgabolab Thingiverse http://www.thingiverse.com/SgaboLab Blogger https://sgabolab.blogspot.com/