The problem? A generic Fanuc post will crash on an 828D. The Siemens control expects specific syntax:
If you are looking to refine your specific CNC programming workflow, please let me know:
The custom post processor not only solved the immediate problem but also opened up new possibilities for the shop. John could now confidently program and machine complex parts on the new mill, taking advantage of its advanced capabilities.
In CNC programming, a post processor acts as a specialized translator. Mastercam generates generic toolpath data; the post processor then converts this into the specific G-code and M-code that a CNC controller (like the Siemens 828D) can interpret. Using the correct post processor is vital to avoid errors, prevent collisions, and ensure that the machine operates safely, efficiently, and to its full potential. siemens 828d post processor for mastercam
Ensure the post outputs feed per revolution ( G95 ) during tapping and reverts to feed per minute ( G94 ) afterward. Conclusion
Unlike standard ISO/Fanuc controls, the Siemens 828D excels when using its native cycle language. Ensure your post processor file ( ) is configured to support the following parameters: High-Speed Machining (CYCLE832):
Instead of breaking down drilling operations into basic G01/G00 linear moves, an optimized post outputs native Siemens cycles such as: : Drilling/Counterboring CYCLE83 : Deep Hole Drilling (Peck drilling) CYCLE84 : Rigid Tapping The problem
For 3+2 positioning or 5-axis machining, the Siemens CYCLE800 (Swivel Plane) command is indispensable. It simplifies multi-side machining by transforming the active coordinate system to align with the tilted tool axis. The Mastercam post must accurately translate Tool Planes (T-planes) into clean CYCLE800 calls. 4. Tool Management and Variables
, you need to configure specific G-code dialects and high-speed cycles unique to the Siemens control environment.
: Move these to the shared Mastercam\CNC_MACHINES folder. Add the Machine in Mastercam: Go to the Machine John could now confidently program and machine complex
Unlike Fanuc that uses G83 , Siemens uses CYCLE83 . Your post processor must translate Mastercam's drilling, tapping, and milling parameters into these high-level cycles.
Step through the first tool change, the first approach, and the first cutting cycle line-by-line using the Single Block function on the 828D panel.
Mastercam does not typically distribute these posts as open public downloads; they are provided through official support channels:
Mastercam updates its post engine every year. Siemens also updates 828D firmware (SW 4.8, 5.0, etc.). Ensure your post vendor provides:
N100 T="5" ; Tool name N110 M6 N120 D1 ; Activate cutting edge 1