12 V to 5 V / 1 A Buck Molecule (TPS54202)

@@ -18,6 +18,8 @@ Watch the board being built in KiCad 10, step by step. Each player below runs at | 12 | [Silkscreen](#clip-12) | | 13 | [3D walkthrough](#clip-13) | | 14 | [Part models: laser etch and LED colour](#clip-14) |+| 15 | [First silkscreen pass (first run)](#clip-15) |+| 16 | [First 3D walkthrough (first run)](#clip-16) |  ## 1. Placement @@ -158,3 +160,27 @@ Every marked part carries its MPN as a flat laser-etch mark on its 3D model, wit <video src="docs/clips/etch-cleanup.mp4" poster="docs/clips/etch-cleanup-poster.jpg" controls muted playsinline preload="metadata"></video>  [Open the clip on its own](https://wiki.adom.inc/api/pages/john/buck-12v5v-molecule/files/docs/clips/etch-cleanup.mp4)++## From the first run++The board went through a full first pass before the analysis sent it back for rework. These two clips show where it stood then, so you can see how it was refined.++### 15. First silkscreen pass++<a id="clip-15"></a>++The first silkscreen, before the rework moved copper and the labels were redone group by group.++<video src="docs/clips/window-724124-20260929-141234-10x.mp4" poster="docs/clips/window-724124-20260929-141234-poster.jpg" controls muted playsinline preload="metadata"></video>++[Watch the action cut (idle time removed, real speed)](https://wiki.adom.inc/api/pages/john/buck-12v5v-molecule/files/docs/clips/window-724124-20260929-141234-action.mp4)++### 16. First 3D walkthrough++<a id="clip-16"></a>++The first board in KiCad's 3D viewer: square corners and the original part models, before the rework, the rounded outline and the etched part numbers.++<video src="docs/clips/window-3933648-20260929-141309-10x.mp4" poster="docs/clips/window-3933648-20260929-141309-poster.jpg" controls muted playsinline preload="metadata"></video>++[Watch the action cut (idle time removed, real speed)](https://wiki.adom.inc/api/pages/john/buck-12v5v-molecule/files/docs/clips/window-3933648-20260929-141309-action.mp4)

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