Mechanical Engineering Drawings
Freelance Mechanical Draughtsman · Production Equipment · Special-Purpose Machinery
Remote & On-Site, Cornwall & South West
Mechanical Engineering Drawings Service
Mechanical engineering drawings are the core of what I do. Over 40 years I've produced detailed mechanical drawings for everything from individual components and sub-assemblies to complete production line systems - for manufacturing companies, engineering contractors, and specialist equipment builders across the UK.
I work from design briefs, concept sketches, site surveys, or existing drawings to produce accurate, buildable mechanical drawings that engineers, fabricators and manufacturers can rely on.
My approach has always been the same: understand the engineering problem properly, then produce drawings that solve it without needing to be corrected.
Drop me an email to discuss your project.
More than just draughting
Mechanical drawings require more than CAD skills. They require an understanding of how things are actually made - tolerances, fits, material behaviour, fabrication methods, assembly sequences.
A drawing produced without that knowledge creates problems downstream: components that don't fit, assemblies that can't be built, details that cause headaches on the shop floor.
I've spent over four decades working alongside engineers, fabricators, and production teams. I know what a drawing needs to contain to be genuinely useful - and I know how to identify when a design has a problem before it reaches the workshop. Value engineering - finding the practical, cost-effective solution - has always been part of how I work.
Types of drawings
Industry Specialisms
My mechanical engineering drawing experience spans a wide range of industry sectors. Significant projects have included:
Powdered metals production equipment: Spray manifolds, atomising vessels, structures and specialist process plant for Atomising Systems Ltd in Sheffield
Clay and concrete pipe production machinery: Extrusion equipment, kilns, inspection and packaging systems for Hepworth Building Products
Steelworks plant: Strip handling, tube processing, bar handling and continuous casting equipment
Packaging and wrapping machinery: Strapping and stretch-wrap machines for agricultural, brick and cardboard applications
Shot blast equipment: Standard blast systems with special feed and unload configurations
Channel Tunnel boring machine backup system: Segment erectors, shuttle conveyor and rolling support gantries
Manufacturing & Production Equipment
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Construction Steelwork
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Water & Environment Infrastructure
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Process Plant & Industrial Equipment
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Architectural Metalwork
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Manufacturing & Production Equipment • Construction Steelwork • Water & Environment Infrastructure • Process Plant & Industrial Equipment • Architectural Metalwork •
If you have a mechanical engineering drawing requirement — from a single component detail to a full production system — I'd be glad to discuss it. Get in touch with a brief description of your project and I'll come back to you promptly.
Ready to discuss your project?
EMAIL: simon@cometrule.co.uk
Frequently Asked Questions
Still have questions? Take a look at the FAQ or reach out anytime. If you’re feeling ready, go ahead and get in touch.
You can find me at simon@cometrule.co.uk
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Yes, to a degree. I'm a design draughtsman, not just a CAD operator - meaning I can take a design brief or a concept and develop it into a workable solution, not just transcribe someone else's design into CAD. I'm particularly strong on value engineering: finding the practical, cost-effective way to achieve the design intent. For full product design from scratch, that's a different discipline - but for developing engineering solutions within a defined brief, yes.
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That's fine - I regularly work from rough sketches, napkin drawings, and verbal descriptions. The starting point matters less than having a clear understanding of what the drawing needs to achieve. A short conversation at the start of a project is often the most efficient way to establish that, particularly for complex or unusual requirements.
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Across my career I've worked in manufacturing, steelworks, mining, construction, water and environment infrastructure, powdered metals, packaging machinery, architectural metalwork, and specialist process plant. The full list of sectors is on the About page — but the short answer is that if it involves mechanical engineering, I've most likely worked in or adjacent to it.
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Yes, I work in both Inventor (3D) and in AutoCAD (2D). Get in touch to discuss the types of projects I can work on.
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Revisions are part of the process and I handle them without drama. Minor revisions - corrections, dimension changes, additional notes - are typically included within the agreed fee for a project. Significant changes to scope are discussed before I proceed, so there are no surprises on either side. I keep drawing files organised so revisions are straightforward to make cleanly.
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We offer flexible pricing based on project type and complexity. After an initial conversation, we’ll provide a transparent quote with no hidden costs.
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Email me at simon@cometrule.co.uk to get started, or fill out the contact us form.
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Yes. For projects that require a site survey, on-site liaison, or working directly with an engineering or production team, I'm available to travel. I cover the Southwest regularly - Cornwall, Devon, Somerset, Dorset - and I frequently take on work in Yorkshire and the wider North of England where a good deal of my manufacturing and steelwork client base is located. For projects elsewhere in the UK, travel can be discussed depending on the size of the project.
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I'm based in East Cornwall. Most of my work is carried out remotely from my home office - which suits the majority of technical drawing projects perfectly well. I also work regularly with clients in Yorkshire, where I have long-standing relationships with engineering and manufacturing businesses, and I take on site work across the Southwest as a matter of course.
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I work primarily from my home office in Cornwall, which means I can take on projects quickly without travel overhead. For projects that benefit from on-site working — site surveys, liaison with production teams, or direct collaboration with engineers — I'm available to work at client premises.