CNC Machining
For functional and end-use parts in plastics and metals
CNC Machining
In 3Dtechnologies4U we are able to offer via our trusted manufacturing network advanced 3, 4 and 5 axis CNC equipment while we have access to more than 60 machined plastics and metals.
Our CNC machining services include: milling, turning, EDM, wire EDM and surface finishing.
In 3Dtechnologies4U the quality of your part is guaranteed and according to your design requirements.
You may want to combine this service with our Plastic 3D printing or Metal 3D printing
CNC Milling
Is the manufacturing process of removing material from a solid part to form a finished or semi-finished shape.
With access to 3, 4 & 5 axis CNC machines, we can produce parts with challenging geometries with high accuracy down to +/-0.03mm
Learn More
CNC Turning
Is the process that can produce parts with cylindrical features by removing material from metal or plastic rods using cutters, center drills or live tooling.
It’s also ideal for larger production runs when coupled with an automatic bar feeder that provides an uninterrupted supply of raw material into the machine.
Learn MoreAvailable surface finishes for CNC Machining
As Machined
• ~125 RA µin (3.2 RA µm)
• Minor tool marks will be visible on the part.
Anodizing
• It helps to resist corrosion, increase surface hardness, improve resistance to wear, and dissipate heat.
• Available in a variety of colors
• Type II, Type III
Painting & Colour matching
• We can match the standard Pantone color, paint it into glossy, matte finish, and more options.
Blasting & Polish
• Bead blasting & Electropolishing add a uniform smooth surface on a machined part. Removing all the tool marks.
Black oxide
• Black oxide is a conversion coating used to improve corrosion resistance and minimize light reflection.
Brushing
• It helps to resist corrosion, increase surface hardness, improve resistance to wear, and dissipate heat.
• Available in a variety of colors
• Type II, Type III
Vapor Polishing
• This is a specialized treatment for achieving optical clarity on polycarbonate (PC) plastic.
• This method is ideal for achieving an extremely clear surface on complex geometries or hard to reach areas.
Heat Treatment
• Annealing, Carburizing, Cryogenic Treatment, Induction Hardening, Nitriding.
Our Materials
Metals
- Aluminium Material Data Sheet
- Brass Material Data Sheet
- Copper Material Data Sheet
- Low-carbon steel Material Data Sheet
- Steel Alloy Material Data Sheet
- Stainless Steel 304 Material Data Sheet
- Stainless Steel 316 Material Data Sheet
- Titanium Material Data Sheet
- Magnesium Alloy Material Data Sheet
- Zinc Alloy Material Data Sheet
What Is CNC Milling?
CNC milling is a manufacturing process that uses a cutting tool mounted on a rotating spindle to selectively remove material from a block of raw substrate. The workpiece is rigidly mounted to a table, and this table moves or rotates on different planes so the tool can work at many angles. Sophisticated machines can have 5 or more axes of independent motion for advanced applications.
3dtechnologies4u can provide CNC Milling services via our access to manufacturing partners and their 3, 4 and 5 axis milling machines.
How Does CNC Milling Works?
CNC milling is a subtractive manufacturing process. It starts by fixturing a block of metal or plastic material inside the CNC mill. Using G-code, the CNC Machine is programmed to rapidly mill out parts from the block of raw material.
Machined plastic parts are left as-milled, which typically means they show visible tool marks. Some metal parts allow more finishing choices like anodizing and chromate plating. When the run is complete and your required surface finish is applied, parts are boxed and shipped shortly thereafter.
CNC Milling Types and Tolerances
✔ 3-axis milling machine: The most widely used type of CNC milling machine. The full use of the X, Y, and Z directions makes a 3 Axis CNC mill useful for a wide variety of work.
✔ 4-axis milling machine: This type of router allows the machine to rotate on a vertical axis, moving the workpiece to introduce more continuous machining.
✔ 5-axis milling machine: These machines have three traditional axes as well as two additional rotary axes. A 5-axis CNC router is, therefore, able to machine 5 sides of a workpiece at in one machine without having to remove the workpiece and reset. The workpiece rotates, and the spindle head is able to also move around the piece. These are larger and more expensive.
CNC Machining Tolerance
CNC Milling Brief Design Guide
Minimum Wall Thickness
0.5mm for metals
1.0mm for plastics
Minimum Hole Diameter
0.2mm
Minimum Feature Size
0.5mm
Minimum Font Size
6pt
Minimum Internal Edges
0.25mm
Threads
M2
What Is 3D Turning
CNC turning is a subtractive manufacturing process that rotates a metal rod while a cutting tool is held against the stock to remove material and create final parts. With our exclusive manufacturers CNC lathes are also equipped with live tooling that can machine flat features and holes into the workpiece. Outside diameter (OD) and inside diameter (ID) threading is also available.
Turned parts can then be left as-machined, with visible tool marks, or at other preferable finishes such as; bead blasted, anodizing and black oxide.
How Does CNC Turning Works?
The main 5 steps for making the CNC turned parts
1. Prepare the G-code file ready (comes from the 3D file)
2. Load the required material at the CNC machine; A plastic or metal block/rod
3. Use the chuck holders to ensure the workpiece will remain fixed in place while the tool spins
4. When the spindle is up to speed, a stationary cutting tool is brought into contact with the workpiece to remove carefully material until the desired geometry is achieved.
5. When all machining operations are completed the part will be cut from the stock for further surface finishes as required.