Customized version of http://www.thingiverse.com/thing:243650

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=243650

Using the following options:

build_plate_selector = 0
tolerance = .5
box_height = 20
box_top_height = 10
box_shape = 0
box_maximum_length_or_width = 80