TPS54202 12 V to 5 V / 1 A Synchronous Buck Converter Molecule

@@ -83,4 +83,6 @@ Every step of the build, in order, each with its own page of evidence (checks, s  **22. Silkscreen**: labels, polarity, pinouts, both faces. [The evidence](steps/22-silkscreen/README.md) +**23. 3D board**: the finished board in 3D. [The evidence](steps/23-3d/README.md)+ <!-- /aiflow:steps -->

@@ -0,0 +1,43 @@+# Step 23: 3D board++the 3D walkthrough: the viewer opened from the editor, then fit, top, tilt, orbit, zoom in, swing, front, bottom, flip, top, fit, all by menu command, no mouse++## Visits++- 2026-10-18T23:28:55Z++## What the binary checked++### tour-3d++- **commands**: 31++## Screenshots and drawings++**start**++![start](shot-3d-1-start.png)++**3d-start**++![3d-start](shot-3d-1-3d-start.png)++**3d-end**++![3d-end](shot-3d-1-3d-end.png)++**visit 1-3d-end**++![visit 1-3d-end](shot-3d-1-3d-end.png)++**visit 1-3d-start**++![visit 1-3d-start](shot-3d-1-3d-start.png)++**visit 1-start**++![visit 1-start](shot-3d-1-start.png)++## Clips++::adom-video{video="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-123799660-20261018-233132-10x.mp4" poster="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-123799660-20261018-233132-poster.jpg" title="3D board, visit 1 (10x)" muted="true"}