About Me

I founded MN3D Design to provide remote mechanical design, 3D CAD modelling, 2D engineering drawings, and 3D printing services to inventors, makers, and businesses across the UK. With more than 40 years of experience in high-tech industries, I bring the knowledge and precision needed to turn ideas into working prototypes and production-ready products.

From Concept to Prototype

My background includes projects in computing, electronics, mobile devices, automotive, aerospace, motorsport, medical devices, and defence applications.

I offer a complete design service tailored to your needs:

  • Components, assemblies, and full product designs.

  • Detailed manufacturing documentation.

  • In-house FDM & SLA 3D printing facilities.

  • Enclosures, fixtures, and complex assemblies.

Decades of Design Experience

  • Electronic Enclosures – from mainframes and desktop systems to rugged handheld devices.

  • Motorsport Projects – F1 inverters and electronics for Formula E racing cars.

  • Aerospace & Defence – rugged video displays, avionics enclosures, and test systems.

  • Consumer Electronics – mobile phones, micro cameras, multimedia systems, and smart radios.

  • Prototyping & Test Fixtures – tools for product evaluation, jigs, and precision rigs.

Over the course of four decades, I’ve worked on:


I take projects from concept to production — covering design, engineering, prototyping, documentation, and manufacturing support.

A machine with a large black box on top, situated on a sliding platform, with a white or light gray background.

Design Tools & Processes

CAD Software:

SolidWorks (since 2008), Solid Edge, NX, Inventor, Pro/Engineer, and others.

Manufacturing Processes:

Plastic injection moulding, die casting (zinc, aluminium, magnesium), precision machining, sheet metal fabrication.

Prototyping Techniques:

Rapid prototyping, rapid tooling, and in-house 3D printing facilities.

Trusted by Leading Companies

Delphi Technologies company logo.
Curtiss-Wright company logo in bold red and black.
Micron Technology logo in blue text.
STMicroelectronics logo with tagline ‘life.augmented’.
McLaren Applied logo
Spacelabs Healthcare logo with blue speech bubble design.
  • STMicroelectronics (Edinburgh, Scotland)

  • McLaren Applied Technologies (Woking, Surrey)

  • Spacelabs Healthcare (Edinburgh, Scotland)

  • Micron Technology (Manchester, UK)

  • Curtiss Wright Embedded Computing (Essex, UK)

  • Invensys Rail (Wiltshire, UK)

  • Delphi Delco Electronic Systems (Liverpool, UK)

  • Ericsson Mobile Telecommunications (Basingstoke, Hampshire, UK)

I’ve worked with some of the UK’s most respected technology and engineering companies, including:

Work With Us

📧 Email: miguel@mn3d.design
📞 Mobile: +44 (0) 7864 363990

With a proven track record across multiple industries, I can provide the freelance design expertise you need for mechanical design, CAD modelling, and prototyping support.