Re: [CAD_CAM_EDM_DRO] Re: what is POSTPROCESSOR? a fundamental question

>A post processor is a program that converts all the CAM information
>into G code that is readable by your machine.
>Invariably nowdays this is built into the CAM program.
>It contains the nessesary functions that your machine controller, in
>your case EMC, understands.
>Not all controllers are equal. Some share a vast number of common
>points but others such as Heidenhain are totally removed from G code.
>Some of the low end programs such as Bobcad and Vector use
>configuration files that are set for each part of the code you are
>writing. You define the start sequence for your machine, then the
>tool change sequence etc.
>Every time you change tools you then select this sequence, usually a
>tool buton and it inserts the required code.
>Others such as Visual Mill, Mastercam, Dolphin and the higher end
>programs use a genuine post processor where the whole of the code is
>written at the end of your tool path selections.
>Where these score over the low end stuff is that any alterations or
>editing results in the whole code being rewritten immediately.
>Any alterations in Bobcad etc has to either be done by hand or by cut
>and paste which is an accident looking to happen for the unwary or
>unexperianced.
>
>John S.
>
>--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Asim Khan <asimtec@y...>"
><asimtec@y...> wrote:
> > Hi everyone!
> > What is postprocessor file? what kind of information does it
>contains?
> > and what is the format of the information?
> > i've heard there are many machine specific postprocessor files,
> > I have setup a 3 axis milling machine, with stg-2 and EMC, can
> > anyone tell me which postprocessor file i'd need to generate the
> > g-codes?
> > Is customization of this file possible?
> >
> > Best regards
> > @sim
>
>
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