This kind of turbine would work ?
http://grabcad.com/library/francis-turbine-runner--1 --- In Homebrew_PCBs@yahoogroups.com, "Daniel" <dandumit@...> wrote:
>
> First of all you have made an excellent article !
>
> regarding a sophisticated impeller/fan . There a lot of activity / enthusiasts that are building at home made 3D printers (also there is a group on yahoo). Also are available commercial services for this. On a such a printer can be made this impeller fairly easy . Also I am interested to participate on this "improvement" since I was planning for a long time ago to build a spray etcher...
> Regards,
> Daniel
>