Progressing Cavity Pump (cycloidical)

**Note: Use of this code is DEPRECATED**

Generating this progressing cavity pump thing that is presented here can
now be done with just a few lines of code by using the new library:
http://www.thingiverse.com/thing:777936
https://github.com/lsuess/scad-lib-cyclogearprofiles

Here is a similar (followup next version) progressing cavity pump thing where that new library is used.
http://www.thingiverse.com/thing:867401

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DESCRIPTION:

This is the center part of a