Customized version of http://www.thingiverse.com/thing:52295

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=52295

Using the following options:

bottom_thinkness_in_millimeters = 3
bottom_surface_width = 0.25
emboss_or_engrave = 1
build_plate_manual_y = 100
build_plate_manual_x = 100
font_depth = 2
top_thinkness_in_millimeters = 5
build_plate_selector = 0
top_surface_width_in_millimeters = 20
inscription = R&T
bottom_style = 0
font = write/BlackRose.dxf
font_height = 10
bracelet_size = 35