I required a more detailed clearance test, so i made one.
TwoTowers-Clearance-Test: one Standard from 0.05–0.25 and an additional section extending down to 0.02.

The test ring has a diameter of 1.1 cm, while the largest diameter of the tower measures 1.08 cm.

The parts where printed with the seams positioned at the rear, as random positioning could distort the results.