Triple screw pump complete

The complete model (main body, filter, 3 screws) of the IMO E4 screw pump. The model isn't perfect as I cant make the grooves in the 2 smaller axis to match with the grooves on the main axis. If someone can make it happen please give it a try. the other parts: http://grabcad.com/library/triple-screw-pump http://grabcad.com/library/triple-screw-pump-body