Customized version of http://www.thingiverse.com/thing:1707835

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=1707835

Using the following options:

side_length = 50
size_y = 80
size_x = 80
base_height = 2
base = rectangle
diameter = 80
position = inscribed
separation = 1
seed = 49243165
num_sides = 8
supports = yes