Interchangeagble magnetic build platform

- http://youtu.be/2RIBSVsIbjE
- http://flickr.com/photos/geekubator/sets/72157629825289523/

Some of you may remember how practical the removable build platform of the Cupcake CNC was! The aim of the project is to make a build platform (here demonstrated on a MakerBot Thing-O-Matic) which is easy to remove from the 3D printer and facilitates the removal of the 3D printed part by the pealing principle.

The base of the platform is made out of a 3 mm thick aluminium plate. It has twelve 10 mm