what is post processing? Deskproto software, ambition of making 3d reliefs

[irving2008]

Chris,

Every CNC machine uses G-code as the basic 'language' to tell it what to do. However few machines use G-code exactly the same due to 'interpretations' of the specification, think of them as dialects. Also some machines can do things in a more clever way, for instance, cutting an arc. Simple machines need the arc to be a series of small lines, clever ones just need to be told the start and end points and the radius and can work it out for themselves.

Post-processing takes the g-code from the CAM software and tweaks it for a specific machine, including adding headers that set up machine configurations.


For many simple machines driven by Mach3 controller no post-processing is needed

[chris]

Chris,


Post-processing takes the g-code from the CAM software and tweaks it for a specific machine, including adding headers that set up machine configurations.

So I'm still a bit confused. Do CAM programs generally contain post-processors within them? Does mine? If not, should I be looking for a different one that does?

RouterCNC, I already have the design aspect (CAD) sorted thanks. It's the CAM to machining process that I'm now trying to comprehend. Not so easy when you're a bit hard of thinking with regard to computers.

I'm sure with the help of this forum I can start filling my workshop with dust and expletives soon enough.

Chris