World-class computer numerical control (CNC) machined parts delivered to your door in days. A wide variety of CNC materials and secondary finishes available from our manufacturing partners.
CNC milling, a core process in CNC machining services, utilizes computer-controlled machines to precisely shape and cut materials for various applications. Our diverse, global supply chain offers an extensive range of capabilities. Whether you are looking for one-off prototypes or large-scale batch manufacture, we can deliver repeatedly on quality and lead time. Our partners operate virtually every kind of CNC machine, including mills, lathes, mill-turns, multi-axis machines, sliding head lathes and bar fed lathes. We also offer CNC grinding and EDM processes. This allows us to utilise the correct tool for the job to meet requirements at a competitive price.
CNC turning, an essential technique in CNC machining services, utilizes computer-controlled lathes to create cylindrical parts with precision and accuracy. With our standard tolerance being +/- 0.127mm on all CNC Turned parts and the ability to refine that even more, Geomiq offers only the best CNC Turning services. With 1400+ machines in our network, we guarantee a great price while maintaining the highest level of quality and fastest delivery possible. So if you are looking to have parts turned with a high level of accuracy and need parts made right the first time, you have come to the right place.
We’re committed to reducing friction at every stage, so you can be as delighted with the speed of your CNC Machined parts’ arrival as you are with their exceptional quality. Order now to receive your parts in as little as 5 days!
Our standard CNC tolerance is +/- 0.127mm, and when you use our tolerance configurator, you can expect precision machining down to +/- 0.005mm.
Whether you’re after a one-off prototype or 10,000 units at the most competitive price, Geomiq’s world-class supply chain can deliver.
We offer high-quality finishing processes for most CNC Machined parts; from anodising, polishing and plating, to powder coating and more.
We offer over 100 plastic and metal materials, and take great care to ensure the right material is used for every part. Please get in touch if the material you require is not listed.
With customers in every industry, from aerospace, defence, robotics, medical and automotive to electronics, Geomiq has a wealth of experience meeting a diverse range of requirements. Calling on our world-class supply chain, we can meet any requirements.
CNC Machining is a form of subtractive manufacturing. This means CNC Machining starts with a block of material (called a blank), and uses fast-moving cutters to quickly carve away material and create the finished part. This involves the automated control of machining tools (such as drills, boring tools and lathes) by means of a computer. These CNC machines process each piece of material to meet specifications by following a coded programmed instruction, and once programmed can manufacture the part autonomously.READ OUR COMPLETE CNC MACHINING DESIGN GUIDE
The lead times of CNC machining (10 days) are longer than the lead times of 3D printing (2-5 days), as CNC machines are not as widely available since they require expert knowledge to operate.
When designing 3D CAD parts that are going to be CNC programmed using CAM software, a few rules or pointers can be followed to allow the part to be machined on a CNC machine.
For example, one needs to remember that the cutting tool used is round, so you cannot have square corners in some places, so one needs to be aware of the cutting tools used.
Here are some rules to follow when designing for CNC machining to prevent the CNC programmer from redesigning your part when they are doing the programming.
Maximum part size depends on your machine size; giant machines can produce parts bigger than 2mx0.8mx1m, five-axis CNC machines have a smaller volume.
Thin walls on a part allow for more opportunity to break, no matter what the material. Wall thickness is proportional to the stiffness of the material, so thinner wall thickness leads to vibrations when machining. As a guideline, keep this in mind: for metals, try not to go below 0.8mm, and plastics not less than 1.5mm. Try to design your part from sheet metal instead or use another manufacturing method if required.
Vibration becomes a problem when machining tall features. Try to work by the ratio of max height is 4 x the length to minimize machine vibrations.
Tolerances are necessary for a design; excess tolerancing only increases machining time and cost. Tight tolerances should only be specified where essential and should keep with the CNC machines tolerance ability. Some standard tolerance to stick by for most CNC machines is ±0.125mm, whereas down to ±0.001mm is feasible. Tolerances should be defined on all critical features.
Try to work with the ratio hole diameter is less than 4 x the length of the hole. If the hole is too deep, this results in the tool deflecting and makes it difficult to remove the chips, leading to tool fracture. An example is a hole 10mm wide that should not be more than 40 mm deep. Deeper holes need to be machined with larger diameter cutting tools; bear this in mind.
Strong threads are formed in the first few turns, so long threads are pretty unnecessary; as a rule of thumb, try to design your thread three times longer than the hole diameter. Choose larger threads if possible; they are easier to machine.
Not all features can be machined on a CNC. If one sticks to some simple guidelines when designing, the part will be redesigned before machining.
One needs to understand the machine’s capability; for example, A 3 axis machine cannot machine negative angles. Another example is one cannot machine curved holes on a CNC; to do this, one would have to split the part into two and reattach the two halves. EDM is a better process for this.
When designing, try to think about the machining processes involved in creating the part; one needs to think practically about how the machine will move and if the part is to be machined on a three-axis or five-axis machine. Three-axis machines can only work with simple geometry and curves, whereas five-axis machines can manage more complex parts.
Most CNC machines use a minimum of a 2.5mm tool diameter; this can be considered when designing. It is feasible to develop features smaller than 0.1mm, although this should be avoided.
One needs to think of the surfaces that can be machined with the CNC tool, internal geometries such as a curved hole are impossible to machine, and such a part would need to be split into two separate parts machined separately and then combined to produce that geometry.
The vertical parts of a machined part will always have a radius due to the tool geometry – drills are always round and can only cut radii.
The geometry of the part decides how it is held in the CNC machine; this impacts the cost; if it can’t be bolted down, it would need to be clamped in place, which could add to a positional error when completing subsequent runs.
Workpiece stiffness can change when thin walls are machined into the parts leading to the vibration of the part. Take this into account when designing.
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