enlarged rostock magnetic_carriage

like aerostock delta magnetic effector
http://www.thingiverse.com/thing:93042

made for my next enlarged rostock
http://www.thingiverse.com/thing:80472

but with correct mesures (magnet are 13mm X 4.6)
stay tuned for the platform
the platform is here
http://www.thingiverse.com/thing:139730

this is the correct magnet (The one i used)
http://www.ebay.it/itm/Super-Magnete-al-Neodimio-CSN-13-POTENZA-3-Kg-FORO-SVASATO-BASE-IN-ACCIAIO-/400535138240?pt=Monete_Italiane_in_Lire&hash=