---
title: 'Adaptive running stitch and machine hygiene'
part: 'Part VII — Fabric Physics and the Professional Layer'
partNumber: 7
order: 4
subtitle: 'stitchlen patterns/reporters, shortstitch, maxdensity, and autotrim'
---

_Content coming soon._ Running stitch is now programmable: fixed length, cycling lists, and a
`(t, s, i, p)` reporter all share one splitting model with matching `resample` forms. The
chapter then returns to short-stitch filtering, density limits, and automatic trims.

<Run>{`// autotrim keeps the output clean across many motifs
autotrim 5
repeat 6 [
  push
  satin 4  fd 15
  pop
  rt 60
]`}</Run>

<Checkpoint chapterId="ch-43">Chapter content coming soon.</Checkpoint>