How can I change the snapping? I put snapping on, but would like to snap objects with increments of .6 meters(60 cm). is there a way to change the snapping? I am working with lego bricks I brought in from Ldraw. Since ldraw automaticaly snaps to lego increments I need to change the snapping increments in blender.
The new "absolute" snapping mode in 2.76 should do the trick. Press n, look in Display, set the grid scale to what you need, and it'll snap to wherever the grid is.

Hope that helps!

http://oneminutevideotutorials.com/absolute-grid-snapping-in-blender-2-76/