Customized version of https://www.thingiverse.com/thing:1626529

Created with Customizer! https://www.thingiverse.com/apps/customizer/run?thing_id=1626529

Using the following options:

holder_x_size = 20
holder_x_size_space = 2
holder_y_size = 40
holder_y_size_space = 2
holder_height = 70
wall_thickness = 3.2
holder_x_count = 1
holder_y_count = 1
corner_radius = 2.5
taper_ratio = 1
holder_offset = 2
strength_factor = 0.66
closed_bottom = 1
holder_cutout_side = 0.0
holder_angle = 0
hole_spacing = 30
hole_size = 4.3
board_thickness = 3