Customized version of https://www.thingiverse.com/thing:551484

Created with Customizer! https://www.thingiverse.com/apps/customizer/run?thing_id=551484

Using the following options:

part_selector = 3
external_length = 65
external_width = 65
base_height = 40
wall_thickness = 2.5
bottom_thickness = 2.6
external_corner_radius = 6
cover_external_height = 3
cover_internal_height = 10
cover_thickness = 2
cover_internal_margin = 0.25
cover_wall_thickness = 2
cover_printing_y_offset = 10