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Engineering consultancy

Wiring harness design, delivered in days,
not weeks.

Signal Red Consulting designs wiring harnesses in 3D using software we built ourselves. Routing, BOM, spec sheets and test setup come out of one model — in days, not weeks. UK-based engineering team for automotive, motorsport, off-highway and defence programmes.

Request a brief See the software
Cycle
Weeks → days
Method
3D CAD · BOM · Test
Sectors
Auto · Motorsport · Defence
Wiring harness routed across an engine bay, close-up of connectors and routed cable runs.
Real customer programme · 2025
// SECTORS

Trusted by engineering teams across automotive, motorsport, off-highway and defence programmes — UK and EU.

Capabilities

A complete drawing-office service,
in software we built.

One model. Four deliverables. Each one comes out of the same source of truth, because we wrote the tool that holds it.

01

3D-routed harness design

Schematic to fully-routed 3D harness in our bespoke CAD. Service loops, bend radii and sealing geometry resolved in the model, not on paper.

EDS · 3D CAD · ECAD/MCAD
02

BOM, spec sheets, manufacturing pack

BOMs generated from the model. Connector spec sheets, cut-length tables, drawing release pack — all derived from one source of truth.

BOM · DRAWING PACK · TEST
03

We build the tooling we use

The in-house CAD platform is the differentiator. Designed by the people doing the work, so the deliverable cycle collapses from weeks to days.

IN-HOUSE · RUNNING
04

Test setup and compliance review

Test-rig layouts, harness compliance reviews against IPC/WHMA-A-620 and equivalents. Issues caught in design, not on the shop floor.

A-620 · IPC · COMPLIANCE
Sectors

Where the work lands.

Six sectors with active or in-build programmes. The harness rules differ, the design discipline doesn't. UK + EU programmes by default; further afield on request.

  1. Automotive
  2. Motorsport
  3. Off-Highway
  4. Aerospace & Defence
  5. Marine
  6. Industrial & EV
Process

Brief to drawing pack in weeks.

Four phases. The deliverables at each phase are the same artefacts your shop and your QA function expect. The speed comes from the tool, not from skipping steps.

  1. 01 Brief

    Brief intake

    Connector list, ICDs, vehicle layout, target build dates. We baseline against your existing pack if you have one.

    Week 01
  2. 02 Route

    3D route in CAD

    Harness routed in the assembly, service loops and bend radii resolved against real geometry. First-pass BOM generated.

    Week 01–02
  3. 03 Release

    Drawing-pack release

    Connector spec sheets, cut-length schedules, terminal table, manufacturing drawing pack. Ready for build at your shop or ours.

    Week 02–03
  4. 04 Test

    Test + revisions

    Test-rig layout, compliance review against IPC/WHMA-A-620. Revisions handled in the model, not in PDF markup.

    Week 03+
Software

The model is the source of truth.

Routing, BOMs, spec sheets, manufacturing drawings, test-rig layouts — all derived from one 3D model. When the model changes, the pack regenerates. No CAD-to-PDF-to-Excel round-trip. No revision drift.

SRC-CAD · Main View
BOM v12.4 · In sync Live
Wiring harness routed in the bespoke 3D CAD viewport. A wiring harness diagram showing the main trunk routed across the assembly with three branches, six numbered connectors, two dimension callouts and a single Signal Red revision flag. C01 C04 C05 C06 C12 2340.0 ±2.5 SVC.LOOP 40R REV-04 · RELEASE
Sheet 01 / 04 · Draft Regen · live Scale 1:1
Bespoke 3D CAD viewport — designed and built in-house by the engineers who use it. One model regenerates the routing, BOM, and the manufacturing pack.
Get in touch

Ready to brief us?

Connector list, sample drawing, target build date. We respond inside one working day with a feasibility note and an indicative timeline.

Request a brief +44 (0) 1449 541255