Blog

Cable making and autonomy, written plainly.

Short pieces from the Draweon team on wire drawing, extrusion, inspection and what it takes to let software move a setpoint. Four so far. Each one is drawn from the thinking in our own planning documents, not from customer work, because there is none yet.

Read the latest About Draweon

4 postsDraweon team2026-10-08

Latest

Why the cable line still runs on feel

Gauges measure. PLCs hold a recipe. Inspection heads alarm after the defect is made. Nobody closes the loop.

2026-10-08 · 5 min read

2026-10-08 · 5 min read · Draweon team

Why the cable line still runs on feel

Gauges measure. PLCs hold a recipe. Inspection heads alarm after the defect is made. Nobody closes the loop.

Wire and cable are the circulatory system of the electrified world: power lines, building wire, EV harnesses, data and fibre. Making them is still one of the most scrap-heavy, defect-sensitive processes in electrical manufacturing. Rod gets drawn to exact diameter, annealed to exact conductivity, stranded to exact geometry and insulated to exact wall and dielectric, at high line speed, on continuous processes, to standards that leave no margin.

Most plants run this on fixed die and line-speed setpoints, spot inspection and human craft. Dies wear, material lots shift, cooling drifts. Wire over-tensions and breaks, walls run eccentric, sparks and pinholes slip through. Each miss becomes scrap, downgrade, a re-run or a field failure.

The insight behind Draweon is that drawing, stranding, extrusion and inspection are not separate problems. They are one continuous process that no one closes the loop on. Draweon fuses the signals, predicts the defect and acts, across the whole line.

2026-10-08 · 4 min read · Draweon team

Autonomy is a dial, not a switch

A plant does not go from manual to unattended in one step. The level has to be explicit, auditable and reversible.

Design partners start in shadow mode. Draweon connects, watches and measures the baseline for scrap, defects and energy, and writes nothing. In assist mode it recommends draw, lay and extrusion moves and predicts eccentricity, sparks and breaks, and an engineer approves each one. Graduated autonomy follows for low-risk loops, inside tag, rate and magnitude limits, with exceptions escalated.

Every agent action carries its source signals, the procedures it retrieved, the predicted impact, the allowed range, the rollback condition, the responsible approver and the reel scope. That is what makes the system legible to plant, quality and IT and OT teams, and it is what makes trust possible before autonomy.

2026-10-08 · 4 min read · Draweon team

Hit spec before the first metre

Cable makers commit copper, polymer and a whole line to a run before they know it will hold spec. The twin changes the order.

New constructions, material lots and changeovers are dialled in on the real line, burning scrap, energy and hours while operators chase setpoints. There has been no fast, physics-accurate way to simulate drawing, stranding and extrusion together and prove a recipe first.

Simweon is an as-run twin of the whole line. It simulates rod breakdown, drawing, annealing, stranding, extrusion, cooling and reel handling with GPU physics, compares as-run against as-designed, and optimises the recipe for quality, dimension and takt. The chosen setpoints are handed to the control agents and executed step by step, logged.

Polymer-extrusion CFD and drawing and thermal simulation are compute-heavy workloads. Running them fast enough for daily production planning is the reason the twin is built on GPUs.

2026-10-08 · 3 min read · Draweon team

The craft is walking out the door

The people who hold the line together are retiring faster than plants can replace them.

Talk to a plant director and the same losses come up: breaks and die wear that halt high-speed lines, eccentric walls that fail dielectric tests, sparks and pinholes that become field escapes, copper and polymer give-away that quietly erodes margin. The craft that prevents these lives in a few veterans' heads.

Draweon captures that craft as a model: the full sequence of process state, prediction, approved action and downstream quality result, per reel. Every supervised correction trains the system. The plant runs at expert tension on every shift, and the record of how is written down.

Run timeline · scenario

The scenario the posts refer to

Every Draweon run is an ordered, inspectable sequence. This is run_3d7a1e on EX-3 · 2.5 mm² class 2 PVC building wire. Scenario completes in 10 steps with one approval gate. Wall settles at 0.80 mm nominal, minimum 0.66 mm, concentricity 0.93, no spark faults, reel R-30417 released with full genealogy.

run_3d7a1e EX-3 · 2.5 mm² class 2 PVC building wire illustrative scenario SUCCEEDED
  1. 01 ingest.order SUCCEEDED 0.6 s

    Plant Orchestrator · Pulled the construction spec for 2.5 mm² class 2 PVC building wire from MES: 7 × 0.67 mm conductor, 0.80 mm nominal wall, 0.62 mm minimum spot wall, 6 kV spark test, 48 km order. Locked the target envelope.

  2. 02 twin.simulate SUCCEEDED 41 s

    Line Twin · Simulated 36 candidate recipes on the as-run line twin for draw schedule, lay length and extrusion setpoints, ranked on wall variance, concentricity, predicted spark risk and polymer give-away.

  3. 03 draw.tension SUCCEEDED 1 m 48 s

    Draw-and-Anneal · Capstan tension on RB1 stepped down 6% as the die-wear estimate crossed its threshold. Diameter held at 0.670 mm ± 0.004 mm and the break-risk score fell from 0.31 to 0.09.

  4. 04 anneal.current SUCCEEDED 54 s

    Draw-and-Anneal · Annealer current trimmed against the live conductivity reading to hold the softness target without over-anneal through the speed change.

  5. 05 strand.lay SUCCEEDED 1 m 12 s

    Strand-and-Cable · Lay length set to 28 mm on bunching line ST2 with payoff tension balanced across 7 spools. Roundness index held above 0.97 into the extrusion payoff.

  6. 06 extrude.wall SUCCEEDED 2 m 36 s

    Insulate-and-Jacket · Screw speed and zone 3 temperature re-cut against melt pressure and material-lot moisture. Wall settled at 0.80 mm nominal, minimum 0.66 mm, concentricity 0.93.

  7. 07 inspect.fuse SUCCEEDED continuous

    Defect-and-Inspect · 6 cameras, the laser gauge, the eddy-current head and the spark tester fused at the edge. One neckdown precursor at 12,480 m flagged and cleared by a screw-speed trim before it reached the reel.

  8. 08 approve.human APPROVAL 38 s

    Plant Orchestrator · Line-speed ramp 1,100 to 1,250 m/min exceeded the site autonomy threshold. Held for the shift process engineer and approved at 06:41:52.

  9. 09 reel.change SUCCEEDED 2 m 05 s

    Robot-and-Handling · Reel change on take-up TU3 planned and executed by the handling robot. Payoff aligned and tension re-established inside the changeover window.

  10. 10 reel.release SUCCEEDED 1 m 10 s

    Quality-and-Conformance · Reel R-30417 released: genealogy written (conductor lot, draw and anneal record, lay, wall and concentricity trace, defect map, approvals) and checked against the construction spec.

Autonomy

Four levels, set per agent and per tag

A plant does not go from manual to unattended in one step. Draweon makes the level explicit, auditable and reversible at any time. The first release runs shadow mode, then assist mode, then graduated autonomy.

Autonomy levels and the human role at each
LevelWhat the agent doesWhat the human doesWhere it sits in a pilot
L1 · AdvisoryRecommends setpoints and explains why, with citationsEnters every change manuallyShadow mode, weeks 1 to 3
L2 · SupervisedProposes a write; it executes on approvalApproves each write in the review consoleAssist mode, weeks 4 to 8
L3 · BoundedWrites inside tag, rate and magnitude limitsApproves ramps, die changes and reel releaseGraduated autonomy, from week 9 if the plant is satisfied
L4 · UnattendedRuns the envelope without promptingSets the envelope; reviews the shift recordPlanned; after qualification on the construction
Accelerated computing

Physical AI, at the die train

Conductor moves at over a thousand metres a minute. Perception has to be local, deterministic and fast, so Draweon runs GPU inference at the plant edge and keeps training, simulation and optimisation in the cloud or on-prem.

Jetson Orin · DeepStream · Holoscan · TensorRT

Edge perception

4 to 12 cameras per line plus laser, eddy-current and spark streams fused at the line. Sub-50 ms alerting and sub-250 ms bounded control are the design targets. Jetson Thor is planned for higher sensor density.

Triton · NIM

Model serving

Vision, time-series, anomaly and quality models behind one orchestrator at the plant edge, with canary rollout by line and fallback to the previous validated version.

DGX or HGX · NeMo

Training

Defect classifiers, sensor-fusion models, time-series prognostics and cable-process reasoning models trained on reel telemetry and engineer corrections. Dedicated training capacity is planned.

Omniverse · OVX · Modulus

Line twin

As-run drawing, stranding, extrusion, thermal and tension simulation. Physics-informed surrogates are planned so recipes can be optimised at production cadence.

Cosmos · Omniverse Replicator

Synthetic data

Rare spark, pinhole, eccentricity, neckdown and break variants generated and validated against real gauge, spark and vision distributions before promotion. Planned.

cuOpt

Optimisation

Line sequencing, reel changeovers, energy allocation, takt and constrained setpoint proposals.

Isaac · Isaac Sim

Robot handling

Spool, reel and payoff and take-up motion planned and validated in simulation before it runs next to moving conductor.

Who it is for

Built for the people who run the line

We have no customer quotes to show yet and will not invent any. These are the three roles in a cable plant we build for, and the problems they bring to the first meeting.

Plant or Operations Director

Owns production rate, quality, scrap and yield, energy and delivery.

What this person is dealing with today

  • Fixed die and line-speed setpoints that cap dimension consistency, rate and yield
  • Expensive copper and aluminium scrap and length give-away eroding margin
  • A retiring wire-drawer and extrusion-operator workforce that caps rate

Process or Extrusion Engineer

Owns draw schedules, annealing, stranding lay and extrusion recipes, process windows and yield.

What this person is dealing with today

  • Diameter, eccentricity, lump and neckdown faults driving scrap and downgrade
  • Wire breaks and die wear halting high-speed lines
  • Drawing, stranding, extrusion and inspection siloed and reactive

Quality or Reliability Engineer

Owns cable quality to UL, IEC, IPC and automotive standards, defect and dielectric conformance, reel and length genealogy.

What this person is dealing with today

  • Spark and pinhole insulation failures causing rejects and safety escapes
  • Genealogy stitched together by hand across separate systems
  • Evidence for customer and regulatory review assembled after the fact
FAQ

Straight answers

The questions plant directors and process engineers ask in the first meeting.

Yes, but only within an explicit tag allow-list with per-tag rate and magnitude limits, and only at the autonomy level your plant has set. Level 1 is advisory: Draweon recommends and a human enters everything. Design partners start there, in shadow mode, before supervised writes.

Get started

Talk to the people who wrote this

Start with one drawing, stranding or extrusion line and one measurable baseline. A paid pilot on wall and concentricity, break prediction or spark prediction shows the number before you commit further.

Book a line review See pricing