Customized version of https://www.thingiverse.com/thing:2758851

Created with Customizer! https://www.thingiverse.com/apps/customizer/run?thing_id=2758851

Using the following options:

x_dimension = 20
y_dimension = 80
spring_height = 2
gap_under_board = 2.5
corner_support = 0
board_thickness = 1.45
Tab_Width = 17
fixing_hole_size = 3
chamfer = 1