Sanguino open case with fan and wire clamps

A simple Sanguino case with a fan and wire clamps for each side. No lid, open case type. The fan is offset slightly to the pololu and mosfets area.

There are two versions:
-the standard version with straight molex connectors (3mm clearance around the board)
and
-a wider version for 90 degrees angle molex connectors (17mm clearance around the board) which require more room around the board (files with "Molex90" prefix).