CNC Post Processes Give Your Parts an Edge
Today's CNC parts manufacture processes are completed using the appropriate CAD/CAM software. However, in order to ensure the instructions developed in the CAD/CAM software reach the CNC machine and can be used to create premium quality parts, the post processor is used as a way to tweak or optimize the way in which the CNC machine operates.
What Are CAD and CAM
In order to better understand CNC parts manufacture, we need to talk about both CAD and CAM. CAD or computer-aided design software, is used by engineers in the design stage of manufacturing precision parts. The software makes it easier for engineers to design incredibly complex parts without spending countless hours on long calculations.
CAM or computer-aided manufacturing is a process in which the CNC machine (along with many others) is programmed to follow the design created using CAD software. In the early days, these programs were used independently, but today they are typically used in conjunction with each other, creating synergies in the parts manufacture process that make it more cost effective.
What Is CAD/CAM Post Processing?
CAD/CAM post-processing occurs when the two programs work together. It is the final link between the CAD design and CNC machine. In effect, post-processing is the most important part of manufacturing precision parts. While the finished product is the result of cutting edge designs created using CAD and CAM programming used to drive the machine, it doesn't matter how good this phase of the project is if you don't have the right post processor in place.
How CAD/CAM Post Processing Works
The use of CAD/CAM post-processing as part of the CNC parts manufacture process allows the manufacturing process to begin without errors. The post-processing stages are:
- The finished 3-dimensional CAD design is imported to the CAM system.
- The CNC programmer feeds data regarding the required machining operations. This creates the paths the tools will take during the manufacturing process.
- Enter the post processor – this software takes the information uploaded into the CAM system and converts it into a language the CNC understands. No further modifications are necessary with a CAD/CAM post processor, as the result is a complete solution that is ready to use.
- The results of the conversion or code are then uploaded into the CNC machine, at which point the manufacturing process can begin. The CAD/CAM post processing is a very challenging process. It requires expert teams of engineers and machine operators to create top-quality precision parts.
