Lithopane of our 3D printer 3Drag
More info on http://www.open-electronics.org/tag/3drag/

Store http://store.open-electronics.org/3D

Customized version of http://www.thingiverse.com/thing:74322

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=74322

Using the following options:

number_of_layers = 20
hole_diameter = 10
image_file = lithopane20130422-8135-19nw2u2-0.dat
layer_height = 0.2