I guess this may have already been posted somewhere as it's not that new, but I've only just discovered it - Technion have reproduced Eschers drawings as 3D models  using 3D printing - it's amaing to see how they are constructed when viewed from different angles: check out the video:

http://blog.stratasys.com/2012/08/28/3d-print-the-impossible-turning-escher-drawings-in-real-3d-models/?utm_source=outbrain&utm_medium=widget&utm_campaign=Stratasys_file&obref=ssys_list

 

Beginners tutorials for Bryce

Bryce Arena