Customized version of https://www.thingiverse.com/thing:1468619

Created with Customizer! https://www.thingiverse.com/apps/customizer/run?thing_id=1468619

Using the following options:

diameter = 60
height = 5
ring_thickness = 5
notch_length = 7
notch_thickness = 1
notch_placement = 4
notch_height = 0
notch_count = 70
length = 75
thickness = 5