CNC Machining & CNC Prototyping Services UK

CNC prototyping and custom machining, in the real material

CNC machining cuts your part from a solid block of metal or engineering plastic, so it has the strength of the real material. We hold ±0.10 mm on most work and turn most parts around in 3 days, with a 24-hour rush when you need it.

Precision

CNC machining for demanding industries

We machine metal and plastic to exact specifications, from aerospace components to consumer product prototypes, with the precision and repeatability the job demands.

Haas VF-2SS 4-axis mills, 762 x 406 x 508 mm travel

Haas SC10 lathe

Milling, pillar drills, lathes, grinding, band saws and finishing, all in-house

CNC machined acrylic sculpture

CNC projects we have made

Hayter lawn mowers: a petrol and an electric prototype built from multiple CNC-machined components in production materials and painted in the production colours. Both ran with a blade and cut grass.

Heart valve exhibition figures: three full-size male bodies CNC machined in clear acrylic for a maker of replacement heart valves, with a chest cavity cover held by near-invisible magnets and clear SLA hearts inside.

Acrylic ice sculpture: a large block of acrylic machined over multiple set-ups, then hand finished to a flawless, glass-like replica of ice.

Chrome whisky bottle case: a looks-like prototype machined in acrylic, with every facet polished and vacuum plated to a mirror finish. It led to the tooling order and a run of 1,000 plated injection mouldings, assembled onto the bottles in our workshop.

What we deliver

Parts machined from solid, to drawing
For prototypes and production parts in aerospace, medical and consumer products, where the part has to behave like the real thing

Aluminium part machined on a fourth axis

Tolerances to ±0.10 mm

We machine to tight tolerances and hold them consistently.

CNC machined aluminium chassis component

Materials ready to machine

Aluminium, steels, stainless steel (303, 304, 316 and 440), brass, ABS, nylon, POM (acetal), polycarbonate, acrylic and PEEK, all held in stock.

Close-up of a series of metal and black industrial machine tool holders arranged on a shelf.

3-day turnaround, 24-hour rush

Most parts are turned around in 3 days. If you need it sooner, a 24-hour rush service is available.

Custom and bespoke machining for complex parts

CNC milling and turning in Cambridge. We specialise in one-off and complex parts in a specific material: concept models, prototype components and parts that other shops turn down. We machine production materials such as PEEK and stainless steel, and finish parts to production standard in our own workshop.

Making the Right Choice with Material Selection

3D printing is quick, but a printed resin is never quite the production material. When a part has to be tested for strength, heat, chemical resistance or wear, CNC machining lets you test the real thing: aluminium, stainless steel, PEEK or the engineering plastic you will mould in.

We machine complex geometries on 4-axis mills and our lathe, so you can trial parts and assemblies in the intended materials, for testing or for short production runs, and then have them finished in-house to look like the final product.

The numbers behind our CNC work

We machine to tight tolerances and verify every part. The numbers below show the standards we work to every day.

±0.10mm

Standard tolerance

10+

Materials available

2

Days for simple parts

Man operating CNC machining center in a workshop with organized shelves of parts in plastic bins on the right.

“When it comes to model making/prototyping support Complete Fabrication are one of the best companies I have ever dealt with. You can always rely on CFM to assist with any necessary creative input and technical ‘know how’ required, and the service they provide is of the highest quality. CFM is an integral part of our development process. They are professional, friendly and they never fail to deliver.”

Matt Wright, Wright Design
Four silver metal impeller blades arranged in a row on a white surface.

Ready to get parts moving?

Send us your drawings or specifications and we will quote the job within two working days.

Send us the difficult parts

Functional prototypes, full-scale display models and detailed one-off components are our everyday work. If a part needs machining, hand finishing and assembly, we can do all three under one roof.

How we work

The person who runs your job talks to you directly, from quote to delivery. If a feature is hard to machine or a tolerance is tighter than the part needs, we will tell you before we cut metal, and suggest a cheaper way to get the same result.

Modern single-serve espresso machine with stainless steel and black design.

Questions

Find answers about our CNC capabilities, materials, and what we need from you.

How do the parts compare with the final production item?
What file formats do you accept?
How tight are your tolerances?
How long will I need to wait?
I need this to be showroom ready. Can you help?
Do you offer bridge tooling?

Need more information?

Reach out and we'll answer what you need to know.

Three precision-engineered metallic cylindrical components with varying lengths and detailed grooves.
Various small mechanical and plastic parts arranged in a row on a white background.