project
12 V to 5 V / 1 A Buck Molecule (TPS54202)
Public Unreviewedby John Lauer
An independently designed 12 V to 5 V, 1 A synchronous buck molecule (TI TPS54202), with calculations, ngspice and PSpice simulation, KiCad 10 schematic and board, and the board laid out and analysed with adom-aiflow.
← Commit history
Restore the build clips page (the rework run's report push had rebuilt it from that run's clips only)
1 file changed
+97−46
docs/clips.md+97−46@@ -1,99 +1,150 @@ # Build clips -Every step of the adom-aiflow run records its own clip. This page is rebuilt and pushed as each clip stops, so it can stay open in a browser tab while the build runs.+The rework run (the reroute and the silkscreen) has its own page: [rework clips](clips-rework.md). -Last updated 2026-09-30 10:49 UTC. 6 clip(s).+Every step of the adom-aiflow run records its own clip of the KiCad window on the test box. This page is appended as each clip lands, so it can stay open in a browser tab while the build runs. -| # | step | visit | recorded | links | state |-|---|---|---|---|---|---|-| 1 | routing | 1 | 2026-09-30 01:34 UTC | [clip](#clip-1), [10x](clips/window-724124-20260930-013402-10x.mp4), [action](clips/window-724124-20260930-013402-action.mp4), [sheet](clips/window-724124-20260930-013402-sheet.png) | ok |-| 2 | pours | 1 | 2026-09-30 01:45 UTC | [clip](#clip-2), [10x](clips/window-724124-20260930-014523-10x.mp4), [action](clips/window-724124-20260930-014523-action.mp4), [sheet](clips/window-724124-20260930-014523-sheet.png) | ok |-| 3 | current | 1 | 2026-09-30 01:52 UTC | [clip](#clip-3), [10x](clips/window-724124-20260930-015230-10x.mp4), [action](clips/window-724124-20260930-015230-action.mp4), [sheet](clips/window-724124-20260930-015230-sheet.png) | ok |-| 4 | silkscreen | 1 | 2026-09-30 03:18 UTC | [clip](#clip-4), [10x](clips/window-724124-20260930-031802-10x.mp4), [action](clips/window-724124-20260930-031802-action.mp4), [sheet](clips/window-724124-20260930-031802-sheet.png) | ok |-| 5 | silkscreen | - | 2026-09-30 03:30 UTC | [clip](#clip-5), [10x](clips/window-527520-20260930-033042-10x.mp4), [action](clips/window-527520-20260930-033042-action.mp4), [sheet](clips/window-527520-20260930-033042-sheet.png) | ok |-| 6 | 3d | 1 | 2026-09-30 10:48 UTC | [clip](#clip-6), [10x](clips/window-18616902-20260930-104837-10x.mp4), [action](clips/window-18616902-20260930-104837-action.mp4), [sheet](clips/window-18616902-20260930-104837-sheet.png) | ok |+Last updated 2026-09-29 17:04 UTC. 9 clip(s). -### Clip 1: routing+| # | step | recorded | clip | state |+|---|---|---|---|---|+| 1 | 3D walkthrough (KiCad 3D viewer) | 2026-09-29 14:13 UTC | [10x cut](#clip-1) | ok |+| 2 | Placement (and the first traces) | 2026-09-29 02:34 UTC | [10x cut](#clip-2) | ok |+| 3 | Routing landed, first pours | 2026-09-29 02:57 UTC | [10x cut](#clip-3) | see note |+| 4 | Fields walkthrough (Adom Fields app) | 2026-09-29 12:52 UTC | [10x cut](#clip-4) | ok |+| 5 | Routing rework (back from the current analysis) | 2026-09-29 11:56 UTC | [10x cut](#clip-5) | ok |+| 6 | Pours rework (back from the Fields solve) | 2026-09-29 12:11 UTC | [10x cut](#clip-6) | ok |+| 7 | Thermal analysis, SW throat widened | 2026-09-29 12:43 UTC | [10x cut](#clip-7) | ok |+| 8 | Net walkthrough (GND, SW, VIN, VOUT) | 2026-09-29 12:57 UTC | [10x cut](#clip-8) | ok |+| 9 | Silkscreen | 2026-09-29 14:12 UTC | [10x cut](#clip-9) | see note |++### Clip 1: 3D walkthrough (KiCad 3D viewer) <a id="clip-1"></a> -Step `routing`, visit 1. Recorded 2026-09-30 01:34 UTC, 25 min after the prompt, 10 min long. Back because: the planeUnder gate: EN via and track plus the VOUT sense on B.Cu under the input hot loop.+Recorded 2026-09-29 14:13 UTC. 31 View-menu commands, no mouse: the bottom identity silkscreen, tilted and close views with the contact and probe labels, the side view with the medium machine pins under the board, and the top view. -<video src="docs/clips/window-724124-20260930-013402-10x.mp4" poster="docs/clips/window-724124-20260930-013402-poster.jpg" controls muted playsinline preload="metadata"></video>+<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> -Motion-only action cut: [docs/clips/window-724124-20260930-013402-action.mp4](clips/window-724124-20260930-013402-action.mp4)+Motion-only action cut: [docs/clips/window-3933648-20260929-141309-action.mp4](clips/window-3933648-20260929-141309-action.mp4) -Contact sheet (nine frames): +Contact sheet (nine frames):  -Raw recording: `window-724124-20260930-013402.mp4`, 570 MB, kept with the run (not uploaded).+Raw recording: `window-3933648-20260929-141309.mp4`, 52 MB, kept with the run (not uploaded). -### Clip 2: pours+### Clip 2: Placement (and the first traces) <a id="clip-2"></a> -Step `pours`, visit 1. Recorded 2026-09-30 01:45 UTC, 36 min after the prompt, 6.1 min long.+Recorded 2026-09-29 02:34 UTC. The 24 parts parked in a row below the outline land on the molecule one at a time, each its own KiCad undo step; the first traces appear at the end. -<video src="docs/clips/window-724124-20260930-014523-10x.mp4" poster="docs/clips/window-724124-20260930-014523-poster.jpg" controls muted playsinline preload="metadata"></video>+<video src="docs/clips/window-461694-20260929-023413-10x.mp4" poster="docs/clips/window-461694-20260929-023413-poster.jpg" controls muted playsinline preload="metadata"></video> -Motion-only action cut: [docs/clips/window-724124-20260930-014523-action.mp4](clips/window-724124-20260930-014523-action.mp4)+Motion-only action cut: [docs/clips/window-461694-20260929-023413-action.mp4](clips/window-461694-20260929-023413-action.mp4) -Contact sheet (nine frames): +Contact sheet (nine frames):  -Raw recording: `window-724124-20260930-014523.mp4`, 406 MB, kept with the run (not uploaded).+Raw recording: `window-461694-20260929-023413.mp4`, 984 MB, kept with the run (not uploaded). -### Clip 3: current+### Clip 3: Routing landed, first pours <a id="clip-3"></a> -Step `current`, visit 1. Recorded 2026-09-30 01:52 UTC, 43 min after the prompt, 6 min long.+Recorded 2026-09-29 02:57 UTC. The 48 routed traces on the board, then the first pours filling (GND on both layers, VIN and VOUT on top).++> Note: aiflow flagged it blank; that is a false positive: the check samples the middle of the window and the board sits left of centre at this zoom (the sheet shows real footage). -<video src="docs/clips/window-724124-20260930-015230-10x.mp4" poster="docs/clips/window-724124-20260930-015230-poster.jpg" controls muted playsinline preload="metadata"></video>+<video src="docs/clips/window-461694-20260929-025743-10x.mp4" poster="docs/clips/window-461694-20260929-025743-poster.jpg" controls muted playsinline preload="metadata"></video> -Motion-only action cut: [docs/clips/window-724124-20260930-015230-action.mp4](clips/window-724124-20260930-015230-action.mp4)+Motion-only action cut: [docs/clips/window-461694-20260929-025743-action.mp4](clips/window-461694-20260929-025743-action.mp4) -Contact sheet (nine frames): +Contact sheet (nine frames):  -Raw recording: `window-724124-20260930-015230.mp4`, 410 MB, kept with the run (not uploaded).+Raw recording: `window-461694-20260929-025743.mp4`, 1110 MB, kept with the run (not uploaded). -### Clip 4: silkscreen+### Clip 4: Fields walkthrough (Adom Fields app) <a id="clip-4"></a> -Step `silkscreen`, visit 1. Recorded 2026-09-30 03:18 UTC, 129 min after the prompt, 0.8 min long.+Recorded 2026-09-29 12:52 UTC. The Fields app walks the solved board: heat flow in each copper layer in 3D with the vias, the bottom ground plane, temperature in still air (+44 C at U1) and moving air (+24 C), and current density. 0 issues against the 55 C budget. -<video src="docs/clips/window-724124-20260930-031802-10x.mp4" poster="docs/clips/window-724124-20260930-031802-poster.jpg" controls muted playsinline preload="metadata"></video>+<video src="docs/clips/window-4852048-20260929-125229-10x.mp4" poster="docs/clips/window-4852048-20260929-125229-poster.jpg" controls muted playsinline preload="metadata"></video> -Motion-only action cut: [docs/clips/window-724124-20260930-031802-action.mp4](clips/window-724124-20260930-031802-action.mp4)+Motion-only action cut: [docs/clips/window-4852048-20260929-125229-action.mp4](clips/window-4852048-20260929-125229-action.mp4) -Contact sheet (nine frames): +Contact sheet (nine frames):  -Raw recording: `window-724124-20260930-031802.mp4`, 49 MB, kept with the run (not uploaded).+Raw recording: `window-4852048-20260929-125229.mp4`, 181 MB, kept with the run (not uploaded). -### Clip 5: silkscreen+### Clip 5: Routing rework (back from the current analysis) <a id="clip-5"></a> -Step `silkscreen`, visit -. Recorded 2026-09-30 03:30 UTC, 142 min after the prompt, 53.4 min long.+Recorded 2026-09-29 11:56 UTC. FB and VOUT come off the bottom layer under the input hot loop; the feedback column (R1, R2, C9) is turned 180 degrees so it reads VOUT, R1, FBM, R2, FB; the LED moves beside the output; the VOUT sense re-routes along the top edge. -<video src="docs/clips/window-527520-20260930-033042-10x.mp4" poster="docs/clips/window-527520-20260930-033042-poster.jpg" controls muted playsinline preload="metadata"></video>+<video src="docs/clips/window-593052-20260929-115650-10x.mp4" poster="docs/clips/window-593052-20260929-115650-poster.jpg" controls muted playsinline preload="metadata"></video> -Motion-only action cut: [docs/clips/window-527520-20260930-033042-action.mp4](clips/window-527520-20260930-033042-action.mp4)+Motion-only action cut: [docs/clips/window-593052-20260929-115650-action.mp4](clips/window-593052-20260929-115650-action.mp4) -Contact sheet (nine frames): +Contact sheet (nine frames):  -Raw recording: `window-527520-20260930-033042.mp4`, 2702 MB, kept with the run (not uploaded).+Raw recording: `window-593052-20260929-115650.mp4`, 463 MB, kept with the run (not uploaded). -### Clip 6: 3d+### Clip 6: Pours rework (back from the Fields solve) <a id="clip-6"></a> -Step `3d`, visit 1. Recorded 2026-09-30 10:48 UTC, 579 min after the prompt, 0.7 min long.+Recorded 2026-09-29 12:11 UTC. SW patch from U1 to the inductor, solid ground at U1's GND pin with thermal vias, the stray SW vias and corridor GND vias removed, every zone refilled.++<video src="docs/clips/window-593052-20260929-121139-10x.mp4" poster="docs/clips/window-593052-20260929-121139-poster.jpg" controls muted playsinline preload="metadata"></video>++Motion-only action cut: [docs/clips/window-593052-20260929-121139-action.mp4](clips/window-593052-20260929-121139-action.mp4)++Contact sheet (nine frames): ++Raw recording: `window-593052-20260929-121139.mp4`, 87 MB, kept with the run (not uploaded).++### Clip 7: Thermal analysis, SW throat widened++<a id="clip-7"></a>++Recorded 2026-09-29 12:43 UTC. The board while the current and thermal gates ran; the SW patch opened right after U1's SW pin and the pours were re-landed (peak current density 215 to 50 A/mm2 over the rework).++<video src="docs/clips/window-593052-20260929-124348-10x.mp4" poster="docs/clips/window-593052-20260929-124348-poster.jpg" controls muted playsinline preload="metadata"></video>++Motion-only action cut: [docs/clips/window-593052-20260929-124348-action.mp4](clips/window-593052-20260929-124348-action.mp4)++Contact sheet (nine frames): ++Raw recording: `window-593052-20260929-124348.mp4`, 344 MB, kept with the run (not uploaded).++### Clip 8: Net walkthrough (GND, SW, VIN, VOUT)++<a id="clip-8"></a>++Recorded 2026-09-29 12:57 UTC. Each key net selected as a whole in KiCad (pours, tracks, vias and pads together) and framed with Zoom to Selection: GND (137 items), the SW patch from U1 to the inductor (33), VIN (40), VOUT (56).++<video src="docs/clips/window-593052-20260929-125701-10x.mp4" poster="docs/clips/window-593052-20260929-125701-poster.jpg" controls muted playsinline preload="metadata"></video>++Motion-only action cut: [docs/clips/window-593052-20260929-125701-action.mp4](clips/window-593052-20260929-125701-action.mp4)++Contact sheet (nine frames): ++Raw recording: `window-593052-20260929-125701.mp4`, 189 MB, kept with the run (not uploaded).++### Clip 9: Silkscreen++<a id="clip-9"></a>++Recorded 2026-09-29 14:12 UTC. Contact functions landing on both faces beside every machine contact (VIN, GND, EN, VOUT, GND, VMON), probe-pad labels (SW, FB, VOUT, GND) and the bottom identity block, each label dry-run against KiCad's DRC before it landed.++> Note: stopped by aiflow's clip guard after 43 min (budget 10 min); no 10x cut or contact sheet was made, the raw recording is kept with the run -<video src="docs/clips/window-18616902-20260930-104837-10x.mp4" poster="docs/clips/window-18616902-20260930-104837-poster.jpg" controls muted playsinline preload="metadata"></video>+<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> -Motion-only action cut: [docs/clips/window-18616902-20260930-104837-action.mp4](clips/window-18616902-20260930-104837-action.mp4)+Motion-only action cut: [docs/clips/window-724124-20260929-141234-action.mp4](clips/window-724124-20260929-141234-action.mp4) -Contact sheet (nine frames): +Contact sheet (nine frames):  -Raw recording: `window-18616902-20260930-104837.mp4`, 72 MB, kept with the run (not uploaded).+Raw recording: `window-724124-20260929-141234.mp4`, 59 MB, kept with the run (not uploaded).