---
title: React action debug
emoji: "🔍"
colorFrom: blue
colorTo: gray
sdk: static
pinned: false
---

Frame-by-frame player for motherboard/2026-09-11/episode_006_seg00, rows 1307-1907
(20 s at 30 fps), centred on the training sample window rows 1592-1622 (stride 2).

Force is the v8 channel. The old v5 channel clipped this window at 7.87 N; v8 reads
up to 14.0 N on the left sensor, so the published values changed most exactly here.

Delta action is displacement along the sensor normal, `(p[i+k]-p[i]) . R(q) gel_axis`,
shown at k=2 because the training sample is decimated to 15 Hz.