Customized version of http://www.thingiverse.com/thing:94018

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=94018

Using the following options:

text =
clip_tooth_size = 1
clip_back_length = 45
height = 1
vOff = 0
clip_height = 8
clip_tooth_spacing = 6
clip_thick = 3
clip_width = 9
offset = 0
clip_front_length = 60
font = write/Letters.dxf