Customized version of http://www.thingiverse.com/thing:51443

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=51443

Using the following options:

inside_diameter = 60
sides = 4
height_of_band = 10
scale_segment_variation_max = 1
segments = 32
radial_shift_length = 0
radial_shift_periods = 2
z_shift_period = 2
scale_segment_variation_min = 1
segment_twist_variation_angle = 0
mesh_quality = 3
rotate_all_sides_angle = 50
face_rotational_variation_periods = 2
build_plate_manual_y = 100
build_plate_manual_x = 100
segment_spacing_variation_periods = 2
face_rotational_variation_angle = 0
full_twists_per_rotation = 3
tube_offset_per_segment = 0
segment_twist_variation_periods = 2
scale_segment_variation_periods = 4
face_twist_variation_periods = 2
face_twist_variation_angle = 0
level_of_solid_fill = solid fill
build_plate_selector = 0
tube_diameter = 3
z_shift_length = 0
segment_spacing_variation_angle = 0
width_of_band = 10