Customized version of http://www.thingiverse.com/thing:145187

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=145187

Using the following options:

retainer_factor = 6
tab_length = 20
cable_diameter = 15
show_seperate = no
holder_thickness = 6
grip_width = 4
grip_height = 1
tab_thickness = 4
thumbwheel_height = 5
table_thickness = 37.5
$fn = 100
neck_thickness = 4
plane_cut_factor = 1
tolerance = 0.6