CNC Router Machining is at the forefront of modern manufacturing, it is an excellent production method of cutting plywood to size and shape. It uses the power of Computer Numerical Control (CNC) to transform digital designs into parts and components. Achieving the highest precision and at a speed that cannot be achieved using traditional methods.

At Westfield Patterns UK LTD we use CNC router machining to achieve quality parts. These can be repeatable and this can be in a range of materials from cutting plywood to size and MDF. Creating bespoke parts from a range of plastics, foams and even aluminium. Whether it’s for prototyping or mass production. CNC Router Machining offers engineers the flexibility and accuracy to meet the tight deadlines & the demands of today’s engineering projects.

CNC router machining can be used for cutting plywood to size.

CAD and CNC router machining

CAD (Computer-Aided Design) is the method of how we tell a CNC router machine what to machine. How deep, where the cutter should go and what speed it should go. At Westfield Patterns we have highly skilled machinists who can program a project for you. Using your own drawings or even via reverse engineering. Alternatively we can use your own files to machine your parts. Having a computer control the manufacturing process means there is a reduction in lead times and also reduced human error. This leads to higher quality and highly precise output.

CNC router machining is controlled and programmed through CAD

CNC Router Machining can be used for bespoke, one-off parts through to mass production runs.
To fully benefit from the mass production and high-quality parts that CNC Router Machining offers. Especially for Cutting Plywood to size you can contact us on 01733 555512 or email me Simon Cooke

CAD File Formats

CAD file formats are a consideration when designing a part for CNC. Various software packages and file formats may not be compatible with CNC router machining. Therefore it is vital to consider the type of CAD software you are using. If you are paying someone to create the drawings for your parts and components then check what format they are using. Also check that this file type is compatible with your machinist.
At Westfield Patterns we accept DXF, DWG, STEP & IGES types of files to be able to make your parts.
If you need your files drawn we can help you with that. Contact us for a chat

The cost of CNC Router Machining

Generally the cost of CNC router Machining will depend on the material. Complexity and quantity of the parts to be machined. The length of time the machining will take. The type of cutters that will be required.

A wide variety of materials can be CNC machined. This includes metals & plastics. Wood including cutting plywood to size and MDF, we can also machine foams and composites. Less dense materials are typically quicker to machine and have less wear on the cutters as the CNC Machine can operate at a higher feed rate.

A cutting tool on the head of a CNC router machine

This will reduce machining time and will help keep the cost of CNC router machining lower. To get a quote for your project call us on 01733 555512 or email me Simon Cooke

Project Considerations

When designing a part for CNC machining, you should consider the overall part size. The number of reorientations required to machine the part, as these directly influence the machining and setup time. At Westfield Patterns we have 2 CNC router machines that have a bed size of 3 metre x 1.5 metres and 3 metres x 2 metres.

Nesting of materials

When drawing your project you will want to reduce the wastage of your material so nesting your parts on a drawing efficiently and effectively is vital so you get the maximum yield from your plywood sheet. We can help you achieve the best nesting of our project to achieve minimal wastage.

cutting plywood to size and nesting to reduce waste.

Tool changes and tool paths

When drawing your parts via CAD it is wise to get the best possible tool changes and toolpaths to make the manufacturing process as efficient as possible. This affects not only the cost of the part but also the lead time. If you require CNC parts fast. Look to reduce the complexity of the design and ensure the machining can be completed in as few operations as possible.This is especially important for repeat high volume jobs. We can help you to look at the efficiency of your files and drawings and get the best out of your CNC router machining project.

What are CNC router tolerances?

Tolerance refers to the range for a dimension. For example a part is 20mm wide but has a leeway of 0.5mm. Ie it could be between 19.5mm and 20.5mm, to be able to function as the part is designed. An engineer or the designer of the part will determine the tolerance based on the material, function, and what it is to fit in or be apart of.
Most parts will have a maximum and minimum dimensional limit. Some materials will have expansion and contraction due to temperatures, so this needs to be taken into consideration if tolerances for the project are tight. You can talk to us about your project and the tolerances it requires. Just drop me, Simon an email on

Designers need to understand the properties of different types of materials. The way the part will be used to then give a realistic tolerances on drawings. Cutting plywood to size will have different tolerances than plastic cut to size using a CNC router. Tight tolerances that are not actually required can increase costs and lead times. Machining may need to run slower or a more specialist and expensive cutter may be required for very tight tolerances. Therefore it is best to try to determine the tolerance you require instead of specifying a generic tolerance on all drawings.

Tolerances of a project need to be considered.

Need More information?

To find out more about CNC Router Machining services, get in touch to arrange a free quote today or discover more about our CNC Router services by heading to our Service page. We would be happy to help you with cutting your Plywood to size or any other CNC router project. Email me Simon –