Incomincio con questi:
http://www.lilana.com/mechanicalcuriosi ... chines.php
http://kmoddl.library.cornell.edu/index.php
http://www.flying-pig.co.uk/mechanisms/index.html
http://cp.c-ij.com/en/index.html
http://hackaday.com/
http://www.nzmeccano.com/MMdownload.php
http://blog.makezine.com/