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by akshed 3492 days ago
The images show very tight clearances around the battery (0.1mm is the thickness of a human hair) in plan view (XY). The footnote explains discusses the lack of "ceiling space" for the battery to expand into, which mostly happens in Z (the thickness of the phone). In Z, the design is line-to-line.
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To a machinist, a tenth of a millimeter is a yawning gulf.