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CNC Machining – Express Dispatch

High quality CNC machining. Parts dispatched in 3-5 working days.

We’ve been delivering high-quality prototyping and model making services since 1980. We’re a leading prototyping company, based in Royston, where we operate a suite of ten machines which cover milling and turning, as well as other necessary equipment to run a successful CNC department.

Get it Express

We offer four service levels for CNC machining. CNC Express parts are dispatched in 3-5 working days and must meet the following criteria:

Depth of cut

Specialist in the manufacture of prototypes - Prototype Projects

Larger sizes and different materials are available on our other service levels.

Size

Maximum Material Stock Size (3-axis milling)

(Your part must fit within the stock size)

Milling

  • 250mmx200x50 max size in Aluminium 6082
  • 250mmx200x50 max size in Acetyl (black and white)
  • 250mmx200x30 max size in Clear Acrylic
  • 100mmx100x12 max flat bar size in Stainless Steel (316/304)
  • 50mmx50x25 max square bar size in Stainless Steel (316/304)

Turning

  • 60mm max dia in Aluminium 6082
  • 60mm max dia in Acetyl (black and white)
  • 60mm max dia in Clear Acrylic
CNC Machining
CNC Machining

Materials

Numerous types of metal and plastic material can be machined using CNC machining. We keep a stock of commonly used materials in-house. Only the materials listed below, are available on our CNC Express service. If you require different materials, you will need to choose one of our other CNC service levels.

  • Acetyl – white
  • Acrylic – clear
  • Aluminium – 6082
  • Stainless Steel – 316 & 304

Surface finishes

All machined parts are left as-milled. Other finishes are available on request, but will need to be ordered using one of our other CNC service levels.

CNC Machining - CNC Surface Finish

Threaded holes

Threaded holes of M2 – M12 (model drill hole size) are supported on our CNC Express service. Standard threads only. For through tapped holes make hole size suit drill Ø​M1-M12. See the diagram below for details.

CNC Machining - Tapped Holes

Drill depth clearance for blind holes:

CNC Machining - Drill Depth Clearance

Radii

As a natural result of the CNC machining process, the sharp inside corners of a part will be rounded (radiused). The resulting radii will be identified before the part is milled as this will depend on the depth of the feature.

Sharp corner concession:

CNC Machining - Sharp corner concession

Text

Here are some considerations, should your part incorporate text:  

  • 0.5mm is the minimum stroke width for recessed text 
  • 0.5mm, or greater, spacing should be used between characters on raised text 
  • Recessed text is better than raised text