Customized version of http://www.thingiverse.com/thing:22579

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=22579

Using the following options:

spool_diameter = 162.5
hole_diameter = 37.5
holder_base_length = 100
bearing_thickness = 5
spool_wall = 5
bearing_diameter = 13
bolt_diameter = 3.5
holder_base_height = 5
holder_wall = 5