CD engineering-review mesh source notices

CD derives from the six saved CC native files while its upper housing is recut
from each matching flat CB native upper. No material is added above the CB upper
surface, removing the square plateau seen around the previous left lamp.

Both lamps preserve their luminous patterns, centres and top outlines. The left
pattern remains a 7.00 mm square composition with four 0.42 mm equal-width
vertex-to-edge-midpoint channels. The right retains the exact BW six-point star
outline and R1.85 mm central regular hexagon; its points are not lengthened.

Both one-piece metal trays now use 0.70 mm face thickness and 1.00 mm continuous
hidden side walls. The plastic diffusers remain bottom-insertable with 0.05 mm
nominal clearance per side and retain their LED receiver slots. The nominal top
and side leakage paths are closed. No separate perimeter bond-ring part exists.

This non-commercial review contains tessellated display assets, not fabrication
files or a manufacturing release. Native CAD, KiCad, STEP and Gerber files are
not included. Machining, leakage, optics, thermal behavior, tolerances, supplier
DFM and real assembly remain unapproved.

EC60 main-board body basis
Source: https://github.com/4pplet/EC60
Commit: b9c04625bb9944f6fb806aa571da8592cdff8565
Copyright (c) 2022 Cipulot. MIT License; see EC60-LICENSE.txt.

Topre plate and ai03 UDB-C4 notices are retained in adjacent license files.
All source components and adaptations are provided without warranties.