About this 3D model

My version of a one way valve with no moving parts invented by Nicola Tesla. Prints in one piece with no support material. It's still a work in progress. The first version only kind of works. You can find out more at my blog: http://mymakerblog.wordpress.com/2013/05/25/tesla-valveprint-in-one-piece/ Update:Ugh, the second version I uploaded, might have been upside down. :(