The Sega Dreamcast stick, released by Sega in Japan, and by Agetec in North America, is a solid performer. While doing a little tweaking on mine, I snapped these pics of its innards.
The white gate on the joystick mechanism is a 3D-printed octogate (https://cults3d.com/en/3d-model/game/sega-dreamcast-hkt-7300-octagonal-gate), replacing the original square gate.
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