CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] Gcode shmecode.

Posted by Jon Elson
on 2000-11-02 12:11:48 UTC
cnc4me@... wrote:

> How universal is the implementation of gcodes in different
> controllers. Are there times when gcodes have a conflicting function
> in different controllers.
>
> I read a post someware that EMC was based on a old allen bradly
> controller. If gcodes are universial as the machinery and tool
> handbook implies. Then EMC should support any controller as long as
> the gcodes are defined.

The most standard set of G codes (and M codes, etc.) are pretty
standard, and
will work exactly the same on Ah-ha or Fanuc controls. Where it gets
more
complicated is in cutter radius compensation, 3-axis contouring, and
other
moderately tricky stuff. Most controls will still work on the same code
if you
follow some simple rules. What the difference here is, is often how big

an inside corner radius is compared to the tool radius and things like
that.
Some controls are a bit more forgiving, others are more strict.

Finally, in the area of computing a toolpath from a mathematical
description
of a surface, right on the CNC control, and the use of stored
parameters,
subroutines and loops, etc. most controls are totally incompatible.

Jon

Discussion Thread

cnc4me@u... 2000-11-01 22:43:29 UTC Gcode shmecode. Jon Elson 2000-11-02 12:11:48 UTC Re: [CAD_CAM_EDM_DRO] Gcode shmecode.