// Reverse Engineering

Reverse Engineering — No Drawing? No Problem.

We measure the part, rebuild the CAD for free, and manufacture it — from your sample, broken component or photos. No drawing, no part number, no OEM support needed.

CMM measurement to original intent
Free CAD reconstruction
MOQ: 1 piece
Quote in 24h

Three Reasons Customers Come to Us for Reverse Engineering

No drawing exists

The documentation was never made, was lost, or came with a machine that had no paperwork. All you have is the part itself — or photos of it.

Part is discontinued

The OEM stopped making it. The supplier went out of business. The part number returns no results. The machine still runs — but not if this component fails.

Need to improve the original

The original wore out too fast or failed in a specific way. You want to understand it, reproduce it, and upgrade it — harder material, better geometry.

The Process

01

Send the part or photos

Mail the sample — worn, broken, in pieces — or send clear photos with one known reference dimension. We confirm what we need before you ship anything.

02

Measure — CMM and specialist gauges

We measure every feature: bores, journals, threads, gear teeth, keyways, radii. Worn dimensions are restored to original design intent, not copied worn.

03

Reconstruct the CAD (free)

We build a parametric 3D model and drawing. Standard fits, thread classes and gear standards are applied where the measured geometry implies them. You receive this for review before anything is cut.

04

You approve before we cut

Review the CAD and drawing. This is the stage to flag improvements: harder material, larger fillet radius, tighter tolerance where the original failed.

05

Manufacture

CNC turned or milled, vacuum cast, or injection molded depending on material and quantity. The same team that reverse engineered the part manufactures it.

06

Inspect and ship

Every critical dimension checked against the approved model. CMM inspection report included. Ships with the data so you can fit with confidence.

What We Reverse Engineer

Choose the category closest to your problem — each has a dedicated page with specific process details and common parts reproduced:

From a Sample

You have the part — worn, broken, or intact. We measure and reproduce it to form, fit and function. The most common starting point.

RE from a sample →

Without a Drawing

No documentation at all — not even a sketch. We reconstruct the geometry from the part, what it mates with, and engineering first principles.

RE without a drawing →

Obsolete & Discontinued

The maker stopped making it. We reproduce it — from the part, from the mating assembly, or from old manual pages when nothing else survives.

Obsolete part RE →

Machine & Industrial

Drive shafts, gears, couplings, housings, cams and brackets for production machinery, conveyors and industrial equipment.

Industrial machine RE →

Pump Parts

Impellers, wear rings, pump shafts, casings and seal carriers — reproduced to original geometry with improved materials where the original wore too fast.

Pump parts RE →

Automotive & Motorcycle

Obsolete engine brackets, transmission components, suspension parts and bespoke fittings for classic vehicles and custom builds.

Automotive RE →

Marine Parts

316 stainless, bronze and engineering plastic — corrosion-grade reproductions for propulsion, deck hardware and engine room components.

Marine parts RE →

3D Scanning

Complex freeform surfaces, large parts or fragile originals — scanned to point cloud, converted to parametric CAD.

3D scanning RE →

When the Original Part Is Gone

What you haveWhat we useConfidence
Intact original partCMM measurement of all featuresHigh — exact reproduction
Worn or broken partCMM + geometry recovery to design intentHigh — restored, not copied worn
Mating parts onlyBore, shaft, thread and fit data from the assemblyGood — functional reproduction
Photos + one reference dimensionGeometry from photos scaled to known dimensionGood for simple forms
Old manual / exploded diagramProportional reconstruction + engineering contextModerate — confirm with assembly

Measurement Methods

  • CMM — main tool for machined parts; captures bores, journals, faces, threads with ±0.01 mm resolution
  • Thread gauges, bore gauges, micrometers — direct measurement; thread class and fit confirmed against standard tables
  • Gear-tooth comparators — module, pressure angle and tooth profile recovered from an existing gear
  • 3D scanning (structured light) — freeform surfaces, large parts, delicate originals — point cloud then converted to parametric model

You own the CAD file. The reconstructed 3D model (STEP, IGES, DXF) is included free with every order. You are not locked to us for reorders — the files are yours to keep, supply to other manufacturers, or hold as internal reference.

Frequently Asked Questions

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Reverse engineering is measuring an existing part and reconstructing its design data so it can be manufactured again. You need it when the original drawing is lost, the OEM is gone, the part is discontinued, or you want to understand and improve a component without documentation.

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The physical part gives the most accurate result, but it is not always required. Clear photos with one known reference dimension often work for simpler geometries. For complex or tight-tolerance parts, the original sample gives the best outcome.

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Yes. Worn dimensions are restored to design intent — we use the geometry that made sense when the part was new: standard bore fits, thread standards, gear module conventions. A broken part is usually usable; multiple fragments can be reassembled for measurement.

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All three are available. You get a free reconstructed 3D CAD file to confirm before we cut anything. You can request the file (STEP, DXF) to keep. Then we manufacture the part with an inspection report. A CAD-only service is available if you plan to manufacture elsewhere.

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Often yes. When there is nothing to measure, we work from what it mates with: the bore it sits in, the shaft it drives, the assembly it belongs to. Old manual pages, exploded diagrams, part numbers, or photos of similar equipment also help. Tell us what you have and we assess it.

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Quote within 24 hours of us seeing the part or photos. CAD reconstruction: 2–5 days depending on complexity. Manufacture after approval: 5–15 days for machined parts. Express turnaround available for critical breakdowns.

No Drawing? Send the Part.

We measure, rebuild the CAD for free, and manufacture to OEM spec or better. MOQ 1. Quote in 24 hours.

Get a Quote →