Re: [CAD_CAM_EDM_DRO] Re: G-code---for the new millenium

On Thu Feb 28 12:59:45 2002, Carol & Jerry Jankura, <jerry.jankura@...> wrote:

>Hi, Bill Vance:
>
>I'd be interested in viewing the source to BC - It might be worthwhile
>rewriting in Pascal to work into TurboCNC. Then, again, it may not.
>
>Thanks for your offer.
>
>-- Jerry
>
>|-----Original Message-----
>|From: Bill Vance [mailto:ccq@...]
>|Sent: Thursday, February 28, 2002 9:36 AM
>|To: CAD_CAM_EDM_DRO@yahoogroups.com
>|Subject: Re: [CAD_CAM_EDM_DRO] Re: G-code---for the new millenium
>|
>|
>|Hi guys;
>|
>|For those using Linux, (and others if you're enough of a
>|programmer), there's
>|another option in "bc". Bc is an arbitrary calculator language,
>|and even comes
>|with an RPN version for Forth and Hewlett-Packard fans. It can do any math
>|related functions and use the print command to output, for instance, G-code
>|type text.
>|
>|I've used it for a unit conversion util I typed in from a give
>|away sample card,
>|and it's pretty versatile. I have the latest bells and whistles
>|version GNU
>|Copylefted source if you have the old, somewhat limited posix version.
>|
>|Bill, would posting my util for folks to try be OT here? It's two
>|text files,
>|one super short, and the other about as big as some of the bigger
>|posts I've
>|seen here.
>|
>|Bill
>|
>|
>|On Thu Feb 28 01:34:59 2002, ballendo, <ballendo@...> wrote:
>|
>|>Guy,
>|>
>|>Not so fast...
>|>
>|>Fred SELLS CAD/CAM programs! And is definitely NOT unbiased(based on
>|>posts). There are other links that "could have been used" that do not
>|>cast APT in such a poor light.
>|>
>|>Do yourself a favor and try a search on yahoo of:
>|> APT Automatically Programmed Tool CNC
>|>
>|>THEN, see if you're back to square one...
>|>
>|>Fred described the way it HAS been used. I thought you were looking
>|>for the way(s) it COULD be used? (Of course if you just accept it as
>|>60's technology, and not as a starting point for the new gcode your
>|>first message asked for...)
>|>
>|>Since you originally used assembly mnemonics in your question, you
>|>may find that APT works like you think. To say that it is obsolete is
>|>only to say that we now have other ways of doing SIMILAR things,
>|>which many consider better.
>|>
>|>We have "C++". Is assembly obsolete? How about BASIC?
>|>
>|>Did Visual C++ make C more accessible? How about creating visual APT?
>|>Waht about the fact that APT is still used in the most complex types
>|>of machining? Obsolete?
>|>
>|>Hope this helps.
>|>
>|>Ballendo
>|>
>|>
>|>
>|>--- In CAD_CAM_EDM_DRO@y..., "Guy Sirois" <guys@w...> wrote:
>|>>
>|>> Woops ! Back to square one.
>|>>
>|>> Thanks for the warning Fred.
>|>>
>|>> Guy
>|>>
>|>> -----Original Message-----
>|>> From: imserv1 [mailto:imserv@v...]
>|>> Sent: Tuesday, February 26, 2002 2:39 PM
>|>> To: CAD_CAM_EDM_DRO@y...
>|>> Subject: [CAD_CAM_EDM_DRO] Re: G-code---for the new millenium
>|>>
>|>>
>|>> --- In CAD_CAM_EDM_DRO@y..., "Guy Sirois" <guys@w...> wrote:
>|>> >
>|>> > I would like to thank everybody who commented on my weird idea.
>|>It
>|>> is very
>|>> > instructive to read people's opinions, which are often based on
>|>> experience
>|>> > and knowledge.
>|>> >
>|>> > I will try to learn something about this APT language, because I
>|>> think it
>|>> > will become very popular, sooner or later.
>|>> >
>|>>
>|>> It was very popular before the advent of graphical interfaces. APT
>|>> relies on the user having a VERY good understanding of math and
>|>> formulae manipulation of geometry. It is very powerful to an
>|>> educated and trained user, but extremely difficult to one with only
>|>a
>|>> rudimentary knowledge of machine tool geometries. There is very
>|>> little visual feedback to the user to see what he has programmed.
>|>>
>|>> It has been mostly replaced today by Cad-Cam systems that allow the
>|>> user to draw the shapes and develop G-code directly from the
>|>drawing.
>|>>
>|>> The output from an APT system is a CL file which must be translated
>|>> into G-code to work on nearly any controller, modern or ancient.
>|>The
>|>> translation is called post-processing. The APT is free but the
>|>post
>|>> processors usually are quite pricey. Many of the expensive Cad-Cam
>|>> systems in use today still have an intermediary step in which they
>|>> generate a CL file that is post-processed by the same postprocessor
>|>> that would be used for an APT program.
>|>>
>|>> APT is a nearly obsolete technology today and has little practical
>|>> use as compared to Cad Cam except for extremely complex 5 axis
>|>> machining, which seems to be the primary remaining application of
>|>APT.
>|>> (very expensive)
>|>>
>|>> Best Regards, Fred Smith- IMService
>|
>|--
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--
----------------------------------------------------------------------------
RKBA! ***** Blessings On Thee, Oh Israel! ***** 4-19!
----------------+----------+--------------------------+---------------------
An _EFFECTIVE_ | Insured | All matter is vibration. | Let he who hath no
weapon in every | by COLT; | -- Max Plank | weapon sell his
hand = Freedom | DIAL | In the beginning was the | garment and buy a
on every side! | 1911-A1. | word. -- The Bible | sword.--Jesus Christ
----------------+----------+--------------------------+---------------------

Constitutional Government is dead, LONG LIVE THE CONSTITUTION!!!!!

----------------------------------------------------------------------------