This is a Geared Peristaltic pump, designed for 3D printers to enable them to extrude various materials for building objects.
Originally shared 3rd A...ug 2012 -
It's a work in progress, updates will follow, but the basic principle is up-and-running.
This Pump is designed to fit my Quick-Fit X Carriage - https://www.youmagine.com/designs/quick-fit-x-carriage-and-extruder-lm8uu
6-Jan-2013 - Uploaded Sketchup files
Take a look at my Blog for more details about the Pump and assembly.