As we evaluate the factors that affect CNC machining pricing, it is also important to evaluate other manufacturing options available. 3D printing is a trusted technique that also offers unique advantages.
3D printing differs from CNC operations as it is an additive type of manufacturing. For the production of plastic and lower-quality materials, 3D printing is preferred. However, when you are required to cut the products with precision is required then CNC machining is preferred instead of 3D printing.
For better understanding, we will evaluate these methods based on the following:
Production Volume
If you want a technique that requires minimal setup, quicker turnaround time, and reduced initial costs, 3D printing is your best bet. It is highly cost-effective for prototypes.
CNC machining is also ideal for prototypes and small to medium production. The major difference lies in the types of tools used and the cost of setup. These factors can also determine a machine’s production volume and influence the final costs.
Part Complexity and Design
With 3D printing, it’s easy to produce complex and intricate designs that a CNC machine may not be able to create. It can create parts with internal lattices, assembly parts, and simple organic shapes with free-form surfaces.
On the other hand, CNC machining uses specific material types to produce parts with tight tolerances. With its specialized tools, it can produce parts with precision parts with specific properties and a smooth surface finish.
Material Selection and Cost
The materials that often go well with 3D printing are plastic and some specific metals; the cost depends on the type and quality of each material. Unlike other techniques, material waste is generally lower with 3D printing.
CNC machining is compatible with a wider range of materials, including metals and plastics. Unfortunately, material costs here may be higher because the process cuts away the material during machining, leading to more waste. You can reduce these costs by recycling and effectively utilizing the material.