Customized version of https://www.thingiverse.com/thing:3952107

Created with Customizer! https://www.thingiverse.com/apps/customizer/run?thing_id=3952107

Using the following options:

tray_thickness = 1
tray_edge = 2.5
tray_buffer = 0
tray_chamfer_angle = 15
tray_open = 0
base_shape = 1
base_height = 3.5
base_width = 20
base_length = 20
base_tolerance = 0.2
count_width = 3
count_length = 2
$fn = 360