Customized version of http://www.thingiverse.com/thing:114247

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=114247

Using the following options:

center_radius = 12
Build_Plate_Manual_Length = 100
ring_width = 5
font_depth = 2.5
pin_cap_width = 4
pin_cap_gap = .45
ring_height_step = .5
pin_hole_radius = 3
mesh_resolution = 70
element = Ag
ring_spacing = 2.5
ring_height = 6
Build_Plate_Manual_Width = 100
font = write/Letters.dxf
Build_Plate_Type = 0
pin_radius = 2.45