Escher's Penrose Triangle - Oriented and fixed

Data source: http://www.cs.technion.ac.il/~gershon/EscherForReal/
(C) Copyright 2002-2012 Gershon Elber, Computer Science Department, Technion

This will slice nicer in Slic3r than
http://www.thingiverse.com/thing:153644

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