Customized version of https://www.thingiverse.com/thing:2547816

Created with Customizer! https://www.thingiverse.com/apps/customizer/run?thing_id=2547816

Using the following options:

thickness = 75
roundness = 20
faces_1_and_7 = 0.0001/10
faces_2_and_8 = 0.0001/100
faces_3_and_9 = 0.001/1,000
faces_4_and_10 = 0.01/10,000
faces_5_and_11 = 0.1/100,000
faces_6_and_12 = 1/1,000,000