Customized version of http://www.thingiverse.com/thing:112117

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=112117

Using the following options:

mesh_space = 5
depth = 10
mesh_height = 4
border_size = 2.4
frame_thickness = 1.2
indention = 1
printer_extrusion_width = 0.4
diameter = 76.2
printer_skin_size = 1.2
shape = 128
printer_layer_height = 0.3