Adom Custom Electronic Load

@@ -8,7 +8,7 @@ Three real native KiCad moves after DRC caught collisions. Six-second excerpt at  <video width="100%" playsinline controls preload="metadata" poster="docs/clips/placement-correction-poster.jpg" src="docs/clips/placement-correction.mp4"></video> -![Raw take contact sheet](docs/clips/placement-correction-sheet.jpg)+![Raw take contact sheet](clips/placement-correction-sheet.jpg)  ## 2. Inspecting the populated board in 3D @@ -16,7 +16,7 @@ Native KiCad orbit and side views, at normal speed. USB now faces out of the boa  <video width="100%" playsinline controls preload="metadata" poster="docs/clips/placement-3d-review-poster.jpg" src="docs/clips/placement-3d-review.mp4"></video> -![3D review contact sheet](docs/clips/placement-3d-review-sheet.jpg)+![3D review contact sheet](clips/placement-3d-review-sheet.jpg)  Raw source, recorder timing caveats and review notes are indexed in [the shot log](../videos/shotlog.json). [AI Flow clips](clips.md) retain the earlier automatic captures, including excluded static footage. @@ -68,7 +68,7 @@ Fresh top, oblique and bottom views of the saved routed board, including its pro  <video width="100%" playsinline controls preload="metadata" poster="docs/clips/routed-3d-review-poster.jpg" src="docs/clips/routed-3d-review.mp4"></video> -![Reviewed native views](docs/clips/routed-3d-review-sheet.jpg)+![Reviewed native views](clips/routed-3d-review-sheet.jpg)  ## Shunt power and Kelvin-sense close-up 

@@ -8,4 +8,4 @@ At nominal 7000 RPM, the published curve has useful pressure at those flows; at  A blocked inlet can leave the rotor turning. Keep independent case-temperature shutdown as well as tach validity, speed limits and fault latching. Qualification must exercise low RPM, stalled rotor, blocked intake, disconnected tach, sensor failure and hot ambient with the actual interface and duct. -[Reproducible envelope](mechanical/fan-airflow-envelope.json): `python3 tools/fan_airflow_envelope.py`. Nominal RPM affinity is an approximation and the published curve is not a guaranteed minimum performance bound.+[Reproducible envelope](../mechanical/fan-airflow-envelope.json): `python3 tools/fan_airflow_envelope.py`. Nominal RPM affinity is an approximation and the published curve is not a guaranteed minimum performance bound.

@@ -1,6 +1,6 @@ # MOSFET package cooling review -![Package cooling sensitivity](mechanical/package-cooling-budget.png)+![Package cooling sensitivity](../mechanical/package-cooling-budget.png)  This is a separate series-resistance sensitivity calculation, not a Fields thermal pass. It uses the current spec’s 5.5 W MOSFET heat allowance entirely through the case, 40 C ambient, the unchanged 55 C trip, and an illustrative 3 C operating margin. Three numerical unit and energy-balance tests pass. No PCB geometry or gate acceptance was changed. 

@@ -1,6 +1,6 @@ # Stock heatsink attachment candidate -![Board 18 envelope screen](mechanical/cooling-680-screen.png)+![Board 18 envelope screen](../mechanical/cooling-680-screen.png)  The Wakefield 680-125220 offers a factory TO-220 mounting pattern, a nominal 45.974 mm square footprint and 31.75 mm height. Its catalog lists 1.5 K/W at 400 LFM. This airflow is not established for our installed fan. Source: [manufacturer catalog, printed page 75](https://wakefieldthermal.com/content/catalogs/2019_Catalog.pdf). @@ -20,12 +20,12 @@ python3 tools/screen_stock_cooling.py python3 -s tools/plot_stock_cooling.py ``` -[Machine-readable screen](mechanical/cooling-680-screen.json) · [Fitted-model evidence](mechanical/cooling-680-body-audit.json) · [Thermal sensitivity assumptions](package-cooling-review.md)+[Machine-readable screen](../mechanical/cooling-680-screen.json) · [Fitted-model evidence](../mechanical/cooling-680-body-audit.json) · [Thermal sensitivity assumptions](package-cooling-review.md)  ## Sourcing observation, 9 October -Adom Parts Search returned Mouser part 567-680-125220 at $17.17 each, 114 in stock and 253 days listed lead time. This is a point-in-time listing, not a purchase quote; shipping and tax are excluded. DigiKey and JLCPCB returned no results. [Saved API result](design/browser-evidence/stock-sink-api.json). No item was ordered.+Adom Parts Search returned Mouser part 567-680-125220 at $17.17 each, 114 in stock and 253 days listed lead time. This is a point-in-time listing, not a purchase quote; shipping and tax are excluded. DigiKey and JLCPCB returned no results. [Saved API result](../design/browser-evidence/stock-sink-api.json). No item was ordered. -Pup was denied; Native Browser visibly showed a verification challenge despite product text in DOM evaluation. The official API supplied the sourcing data. Manufacturer CAD has not been obtained. [Recorded browser/API review](docs/build-clips.md).+Pup was denied; Native Browser visibly showed a verification challenge despite product text in DOM evaluation. The official API supplied the sourcing data. Manufacturer CAD has not been obtained. [Recorded browser/API review](build-clips.md). -Follow-up: [fastener review](docs/cooling-fastener-review.md) checks exact tab thickness and the catalog shoulder-washer alternatives. The initial washer is not qualified.+Follow-up: [fastener review](cooling-fastener-review.md) checks exact tab thickness and the catalog shoulder-washer alternatives. The initial washer is not qualified.