Spare Parts Factory – Precision CAD & 3D‑Printed Replacement Parts

Recreating Rare, Obsolete & Unavailable Spare Parts – Better Than Original

Spare Parts Factory specialises in reverse‑engineering discontinued, damaged, or unobtainable parts and recreating them using professional CAD design and industrial‑grade 3D printing. From vintage machinery and appliances to automotive, marine, and specialist equipment, we produce accurate, durable replacements—often improving on the original materials and tolerances.

✔ CAD‑designed
✔ 3D‑printed & post‑processed
✔ Functional, tested, and repeatable

[Request a Part Recreation] | [See the Process]

Why Spare Parts Factory Exists

Manufacturers discontinue parts. Tooling is scrapped. Documentation disappears. Equipment that should last decades is written off for want of a single component.

Spare Parts Factory exists to extend the life of machines by recreating critical components using modern digital manufacturing techniques. We work from:

• Broken or worn original parts

• Sketches or measurements

• Photographs

• Partial samples

• Legacy drawings (where available)

Our process replaces guesswork with engineering‑led CAD modelling, enabling consistent reproduction and future re‑ordering without redesign.

Our CAD‑to‑Part Process (How It Works)

1. Assessment & Reverse Engineering

We analyse the original part—dimensions, function, stresses, and interfaces. Where originals have known weaknesses, we redesign for strength, wear resistance, or heat tolerance.

2. Precision CAD Modelling

Each component is recreated in parametric CAD, allowing:

• Exact tolerances

• Future modifications

• Format‑agnostic manufacturing (3D print, CNC, moulding)

3. Material Selection

We select materials based on real‑world use, including:

• Engineering polymers (PETG, Nylon, ASA, CF‑reinforced blends)

• Flexible or impact‑resistant filaments

• Heat‑stable and UV‑resistant options

4. 3D Printing & Post‑Processing

Parts are printed, cleaned, finished, and—where required—machined, tapped, or reinforced.

5. Validation & Repeat Supply

Once approved, the CAD file becomes a digital spare, enabling rapid re‑orders without re‑engineering.

Spare Parts We Can Recreate

• Obsolete appliance parts

• Vintage and classic vehicle components

• Industrial machine spares

• Marine and outdoor equipment parts

• Enclosures, brackets, clips, gears, housings

• Low‑volume or one‑off replacements

If it can be measured and understood, it can usually be recreated.

Example: From CAD to Finished Part (Free Educational Video)

Free Video: Recreating an Obsolete Part Using CAD & 3D Printing

This short walkthrough demonstrates how a damaged, unavailable component is:

• Measured

• Modelled in CAD

• Optimised for strength

• Printed and finished

Why 3D‑Printed Parts Are Often Better Than Originals

Original parts were designed around the constraints of their time. Modern CAD and additive manufacturing allow us to:

• Remove stress concentrators

• Increase wall thickness where needed

• Improve fit and alignment

• Use stronger or more durable materials

• Reduce failure points

In many cases, the replacement part outperforms the original while remaining fully compatible.

Find out more about our Spare Parts processes

• how-it-works – Detailed CAD & manufacturing workflow

• materials – Engineering plastics & performance comparisons

• case-studies – Real examples of recreated parts

• contact – Request a part assessment

Work with the Industry BEST

• Autodesk – Introduction to CAD & Parametric Design

• Prusa Research – Functional 3D printing materials

• Formlabs – Engineering applications of additive manufacturing

• Engineering Explained (YouTube) – Component stress & design principles

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FAQ Spare Parts

Can you recreate discontinued or obsolete parts?

Yes. We specialise in recreating parts that are no longer manufactured, using reverse engineering and CAD.

Do you need original drawings?

No (but it helps). Physical samples, photos, or measurements are often sufficient.

Are 3D‑printed parts strong enough?

When correctly designed and material‑matched, 3D‑printed engineering parts are suitable for many functional applications.

Can parts be reordered later?

Yes. Once created, the CAD file allows repeat production without redesign.

Trust & Expertise Signals

• CAD‑driven, engineering‑led workflow

• Designed and produced in the UK

• Focus on repair, reuse, and sustainability

• Transparent process and educational content

Have Spare Parts you can’t replace?

Upload photos or details and we’ll assess whether it can be recreated—often stronger and longer‑lasting than the original.

[Request a Replacement Part]

Our growing range of SPARE PARTS are made to replace, improve or reinvent old, lost, out-of-stock items.

Look at our CATEGORIES page…

We also design and develop NEW SPARE PARTS and Product ideas which we make available for purchase from our web shop as 3D Printed parts or as files you can use to 3D Print yourself.

If we do not stock your required SPARE PARTS then we can make it. Simple send us the parts with a SAE and we will nmake it available.

Sources: Unsplash, Pexels, or self‑produced photography.