Measuring leather yield honestly
How to baseline yield per hide, control for supplier variance and avoid the batch-average trap.
Guides, references and the things procurement asks for
Everything a process engineer, an integrator or a security reviewer needs, in one place.
Practical guides
Written for people who have to make a line work on Monday.
Validating a bond process window
Building a defensible window from adhesive datasheets, humidity data and delamination history.
Instrumenting a lasting line
Camera placement, lighting and metrology for sub-millimetre fit measurement on a conveyor.
Designing approval policy
Which parameters need a human, which role approves, and what happens at SLA expiry.
Changeover sequencing
Reducing first-good-pair time across a high-mix schedule of models and colourways.
Preparing an OT network
Segmentation, service accounts and time synchronisation for factory-edge deployment.
What each model family does and does not do
Published limits matter more than published accuracy.
| Model family | Scope | Known limitations | Status |
|---|---|---|---|
| Hide defect segmentation | Full-grain and corrected-grain leather | Degrades on heavily printed or embossed finishes | PRODUCTION |
| Nesting optimiser | Leather, textile and synthetic sheet | Very small size curves solve slower per part | PRODUCTION |
| Seam and stitch vision | Lockstitch and zigzag on uppers | Low contrast on black-on-black thread needs added lighting | PRODUCTION |
| Sole geometry metrology | EVA, PU and rubber outsoles | Translucent soles need polarised capture | PRODUCTION |
| Bond-line classifier | Cemented construction | Vulcanised construction in validation | VALIDATING |
| Fit and dimensional model | Lasted uppers, EU 34–48 | Extreme widths outside training range flagged, not scored | VALIDATING |
| Delamination risk model | Cemented athletic and casual | Requires twelve months of return data per plant | EARLY ACCESS |
Integration reference
What is shipped, and what the protocol path is for everything else.
Cutting and nesting
- Atom cutting tables
- Comelz CZ series
- Zünd G3
- Lectra Versalis
- Generic CNC / G-code
Stitching and lasting
- Programmable stitchers
- Lasting machine PLCs
- Toe / side / heel lasters
- Conveyor MES signals
- Barcode and RFID pair tracking
Moulding and bonding
- Compression press controllers
- PU / EVA injection lines
- Primer and cement stations
- Activation ovens
- Press pressure and cure sensors
Plant systems
- SAP and Oracle ERP
- PLM (Centric, PTC)
- MES / MOM systems
- OPC UA, MQTT, Modbus TCP
- Historian (PI, Ignition)
Connectors ship as versioned adapters. Anything not listed is reachable through OPC UA, MQTT, Modbus TCP or the Footeon REST/gRPC API.
Procurement and security materials
Available on request under NDA where applicable.
Security pack
- Security whitepaper and architecture diagrams
- Data flow and residency documentation
- Subprocessor list and DPA
- Penetration-test summary [ASPIRATIONAL]
Quality pack
- Model validation methodology
- Evaluation and regression-gate description
- Audit-log schema and retention policy
- Sample brand-auditor export
A complete annotated run
The full RUN-4417 tool-call stream, useful when designing your own integration.
- 09:14:02 hide.scan(batch="LH-2291", hides=64, sensor="line-b/cam-01")
- 09:14:19 64 hides mapped · 1,842 defects marked · mean usable area 91.2%
- 09:14:20 nest.optimize(pattern="velo-trainer-2", size_curve="EU36-46", objective="yield")
- 09:14:33 nest v7 · leather yield 87.4% (+8.3 pts vs baseline) · solve 12.3 s
- 09:18:44 cutter.execute(table="CT-2", nest="v7", blade_profile="leather-1.8mm")
- 09:22:56 2,412 parts cut · 0 out-of-tolerance · scrap 12.6% (plant baseline 20.9%)
- 09:41:10 stitch.monitor(stations=14, thread_lot="TL-77")
- 09:52:18 3 skipped stitches detected on lateral overlay · 3 uppers re-run · 0 escapes
- 10:03:02 press.set_recipe(press="P-3", recipe="R-08", dwell_s=214)
- 10:12:53 midsole density 0.24 g/cm³ ±1.8% · 0 short shots
- 10:31:07 bond.check_window(primer="PR-9", adhesive="AD-22", rh=0.71)
- 10:31:09 RH 71% pushes primer flash-off outside validated window
- 10:31:10 approval.request(param="activation_temp", from=64, to=66, reason="humidity drift")
- 10:34:14 approved by t.nguyen@[PLACEHOLDER] · change logged to audit trail A-88213
- 10:52:40 quality.inspect(scope="bond_line,fit,cosmetic", pairs=1200)
- 10:58:27 first-pass yield 98.2% · 21 rework (squeeze-out) · 0 bond-gap escapes
Every line is real, copyable text and is announced politely to screen readers.
Downloads
Sample payloads match the production event schema.
Footwear and autonomy terms
The vocabulary used across this site.
Footwear
Terms from the plant floor.
- Nesting — arranging pattern parts on a hide or roll to minimise waste
- Lasting — forming the upper over a foot-shaped last under heat and tension
- Bonding — attaching the sole with primer, adhesive, activation and pressure
- Delamination — bond failure separating sole from upper in service
- First-pass yield — pairs passing inspection without rework
Autonomy
Terms from the system.
- Run — a lot moving through the line as an agent goal
- Tool call — the only way an agent decision reaches a machine
- Validated parameter — a setting under a quality agreement, requiring approval
- Graduated autonomy — observe, recommend, act-with-approval, act
- Fail closed — reverting to last known-good rather than proceeding
Related writing
Articles that go deeper on these guides.
2026-07-14 · Bonding
Humidity is the quiet cause of most delamination
Why primer flash-off, not adhesive quality, explains the seasonal shape of warranty claims — and what a bond agent does about it.
9 min read
2026-07-02 · Cutting
Yield per hide, not yield per batch
Batch-level yield hides the variance that actually costs money. Measuring per hide changed what our design partners bought first.
7 min read
2026-06-21 · Autonomy
Why our bond agent asks permission
The engineering case for act-with-approval on validated parameters, and what happens when the approval SLA expires.
6 min read
Platform status
Live operational summary across regions and edge fleets.
- 99.98% control-plane availability, trailing 90 days
- 100% edge regions operational
- 0 open Sev-1 incidents
- 2026.06.3 current edge model bundle
Status figures shown here are illustrative for the site; the live status page is published to customers. [PLACEHOLDER]
Security summary
The short version. The full pack is available on request.
Certifications and posture
- In progress SOC 2 Type II — audit window open [ASPIRATIONAL]
- In progress ISO 27001 — controls implemented, certification pending [ASPIRATIONAL]
- Supported GDPR — EU data residency and DPA available
- Supported Per-tenant isolation for patterns, lasts and construction IP
- Supported On-premises deployment with zero telemetry egress
Agent-specific assurances
- Graduated autonomy: observe → recommend → act-with-approval → act, set per agent and per parameter
- Human-in-the-loop approval gates on every validated bonding, lasting and moulding parameter
- Immutable, quality-grade audit log of every agent action, approval and setpoint write
- Guardrails and schema validation on tool calls; fail-closed to last known-good recipe
- Sandboxed factory-edge runtime with signed model artefacts and version rollback
- Scoped permissions per line, per station and per operator role
Resource questions
-
Only if you choose. Inference runs on factory-edge servers, and Enterprise deployments can run fully on-premises or in your VPC with no telemetry egress. Brand IP — patterns, lasts, construction specs — is tenant-isolated and never used to train models for another customer.
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Agents are bounded by guardrails and schema validation, they cite the datasheet or spec clause behind a decision, and they fail closed to the last known-good recipe. Continuous evaluation against golden datasets gates every model and prompt change in CI before it reaches a plant.
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No. Footeon is a software and factory-edge autonomy layer that sits on top of the machines you already run. We connect over OPC UA, MQTT, Modbus TCP and vendor SDKs, read sensors and vision, and write setpoints back through the controls you already trust — with approval gates on any validated parameter.
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Yes — and they are exactly where bond control earns its keep. Recycled EVA, bio-TPU and mono-material uppers shift adhesion behaviour and process windows; the twin simulates the new window and the bond agent holds it as lot chemistry drifts.
Ask for the document you need
Security questionnaires, model cards, audit-schema samples — tell us what your reviewer wants.