Customized version of https://www.thingiverse.com/thing:2424769

Created with Customizer! https://www.thingiverse.com/apps/customizer/run?thing_id=2424769

Instructions

Using the following options:

l = 500

w = 100

wall = 5

beam = 5.1

horizontal = 1

diagonal = 1

holer = 6

holesl = 30

holeo = 3