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1 Main enclosure Printed as one piece. The transparent IO window is printed in place — nothing to fit. 1 × printed body
2 LiPo 400 mAh Goes in diagonally from above and stands upright against the back wall, taped top angled toward the front. Route the lead up the right side. 25 × 17 × 3 mm · JST-PH 2-pin
3 Feather board (Adafruit 5691) Goes in after the cell, display facing the front opening. Plug the red/black JST lead into the white socket first. ESP32-S3 reverse TFT feather
4 Button caps D0 · D1 · D2 Load from behind the front, not from the outside. Hold them in their pockets while the bezel goes on. 3 × printed · 1.2 mm travel
5 Front bezel Presses onto the front opening and captures the three caps. Work the perimeter until it sits flush. 1 × printed · friction fit
6 Cowboy hat Drops onto the top of the enclosure — the concealed magnet does the holding. 1 × printed · 6 × 2 mm magnet

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        parts separate along the insertion axis
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