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Cast Iron CAD Ltd

Brighton-based product design and engineering consultancy that takes physical product ideas from concept through prototyping to manufacture.

Last updated September 28, 2026

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Overview

Cast Iron CAD Ltd is a product design and engineering company based in Brighton, England. It works with innovators, startups and established companies that want to turn a physical product idea into something that can actually be made, sold and supported. Rather than acting as a pure design studio or a pure contract manufacturer, the firm positions itself across the whole development journey: creative concept work, technical engineering, and the business-side preparation needed for production. The company describes three broad phases of work. The first is product design — brainstorming, concepts, moodboards, specification, timeline and investment planning, and early 2D/3D CAD. The second is engineering: optimising a design for manufacture, technical and material research, analysis, documentation and compliance, prototypes and proof-of-concept models, functional and pre-production builds, and testing for fit, form and function, including CE and UKCA-related testing. The third is manufacture support: production-ready documents, production methods, quality control, assembly methods, routing and instructions, packaging, master production schedules, supply chain management and fulfilment. Cast Iron CAD is led by founding engineer Dave Lock, who describes himself as a creative problem solver with over 25 years of experience and the skills, tools and machinery needed to create innovative physical products. The company says it has designed over 280 products and works with clients, designers, engineers and manufacturing partners to bring all the elements of a project together. It offers a free one-hour consultation and works under NDAs, which it notes can limit what it is able to show publicly. Its client work spans both consumer and industrial projects, and the firm presents itself as adaptable across product types and sectors. Because much of its work is confidential, its public profile is built mainly around its process, its engineering disciplines and its sector experience rather than named client products. The company operates from Brighton and Hove and serves clients who need end-to-end product development support in the UK.

History

Cast Iron CAD Ltd is a product design and engineering company based in Brighton, England. It was founded by Dave Lock, who is identified on the company's website as its Founding Engineer. Lock describes himself as a creative problem solver with over 25 years of experience and the skills, tools and machinery required to create innovative physical products. The company's public materials do not state a precise founding year, so the exact date of establishment is not documented in the available evidence. From its base in Brighton, the firm has built its practice around helping innovators and companies turn product ideas into manufacturable goods. Its website states that it has designed over 280 products, and that it works with clients, designers, engineers and manufacturing partners to bring together all the elements required for a project. The company emphasises that it can engage at any stage of development — sometimes with nothing more than a concept, and sometimes with a product that is already fully developed but needs optimisation. Cast Iron CAD structures its work into three broad phases. The first, product design, covers brainstorming, concepts, moodboards, specification details, timelines and investment, RRP and quantity estimation, design and conceptualisation, technical and engineering development, market positioning, 2D/3D CAD, marketing renders and packaging design. The second, engineering, covers optimisation, CAD and design, technical and material research, analysis and engineering, documentation and compliance, prototypes and proof-of-concept models, functional and pre-production builds, and testing for fit, form and function, including CE and UKCA and extreme testing. The third, manufacture, covers production engineering, production design, production methods, quality control, assembly methods, production routing and instructions, packaging, master production schedule, product launch costs, supply chain management and fulfilment. The company works on both consumer and industrial projects and describes itself as extremely adaptable, with a team of design engineers able to find solutions to almost any kind of challenge. Because it operates under NDAs to protect client intellectual property, much of its project work is not publicly disclosed; the firm notes that this may limit what it can share and invites prospective clients to ask whether it has specific expertise relevant to their needs. It also maintains a sectors page listing some of the product types it has worked on. Cast Iron CAD offers a free one-hour consultation and presents its physical product development process as a flexible framework to help ideas navigate innovation and engineering. The company remains active and continues to position itself as a full-journey partner from conceptual ideas and designs through prototyping, manufacture and packaging.

  • Dave Lock, founding engineer, establishes Cast Iron CAD in Brighton, England.

  • Company reports having designed over 280 products.

  • Cast Iron CAD offers a free one-hour consultation to prospective clients.

Products and positioning

A hands-on product design and engineering partner for innovators and companies, covering concept, engineering and manufacture preparation under one roof.

  • Product design services

    Brainstorming, concepts, moodboards, specification, timeline and investment planning, RRP and quantity estimation, 2D/3D CAD, marketing renders and packaging design.

  • Engineering services

    Optimisation, CAD and design, technical and material research, analysis, documentation and compliance, prototypes, functional and pre-production builds, and fit/form/function testing including CE and UKCA.

  • Manufacture support services

    Production engineering, production methods, quality control, assembly methods, routing and instructions, packaging, master production schedule, supply chain management and fulfilment.

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