On Sat, 08 Nov 2008 23:13:00 -0500, you wrote:
Comments and suggestions are welcome, but if you want to make I/J/K
optional in absolute mode, be prepared to define exactly what will
happen in all cases, and come up with very good reasons to justify the
additional complexity.
Hi John - when I
On Sat, 2008-11-08 at 23:13 -0500, John Kasunich wrote:
The Mach manual says In Absolute it will, of course usually be
necessary to use both I and J words unless by chance the arc's centre is
at the origin. So Mach is using zero if you don't specify I or J (or
K, depending on the plane).
I
snip
Isn't the math:
I(relative) = I(absolute) - X(start)
J(relative)=J(absolute)-Y(start) ?
Carl Helquist
Hello Carl
Your math's is right (I think so)
However your assertion in my ability or inclination to write a script or
program, sorry wrong.
Best wishes
Dave
/snip
If that math is
Andre B wrote:
I think just leave EMC as it is and write a little app that does the
conversion off line, most any CAM system should be able to output
either format so we are only talking about a few existing old g code
programs. In my opinion the user would be better off rewriting those
Hi
I have some Gcodes where the I and J are in absolute coordinates, EMC2 seems
to like I and J in incremental coordinates, is there a simple way, or
something that will enable EMC2 to read these Gcodes.
Regards
Dave
-
On Sat, Nov 08, 2008 at 04:53:58PM +0200, Dave Houghton wrote:
Hi
I have some Gcodes where the I and J are in absolute coordinates, EMC2 seems
to like I and J in incremental coordinates, is there a simple way, or
something that will enable EMC2 to read these Gcodes.
Regards
Dave
No,
If you (or anyone else) decide to change the interpreter, I think you
should add a parameter to the ini file supporting IJ_MODE_ABSOLUTE = 1
so that the same interpreter will support both modes.
Ken
Chris Radek wrote:
On Sat, Nov 08, 2008 at 04:53:58PM +0200, Dave Houghton wrote:
Hi
I have
-Original Message-
From: Chris Radek [mailto:[EMAIL PROTECTED]
Sent: 08 November 2008 05:22 PM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] I J code
On Sat, Nov 08, 2008 at 04:53:58PM +0200, Dave Houghton wrote:
Hi
I have some Gcodes where the I and J
-Original Message-
From: Kenneth Lerman [mailto:[EMAIL PROTECTED]
Sent: 08 November 2008 05:27 PM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] I J code
If you (or anyone else) decide to change the interpreter, I think you
should add a parameter to the ini file
Thanks for your reply, I suppose I was looking a Gcode answer. I
don't want
to change the interpreter.
Regards
Dave
At one time I had one control program that used IJ absolute along
with EMC (pre EMC2). In order to be able to convert programs from one
format to another I wrote a
At 10:36 AM 11/8/2008, you wrote:
-Original Message-
From: Kenneth Lerman [mailto:[EMAIL PROTECTED]
Sent: 08 November 2008 05:27 PM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] I J code
If you (or anyone else) decide to change the interpreter, I think you
should add
-Original Message-
From: Andre' Blanchard [mailto:[EMAIL PROTECTED]
Sent: 08 November 2008 07:51 PM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] I J code
At 10:36 AM 11/8/2008, you wrote:
-Original Message-
Andre' wrote
There are programs available
: Kenneth Lerman [mailto:[EMAIL PROTECTED]
Sent: 08 November 2008 05:27 PM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] I J code
If you (or anyone else) decide to change the interpreter, I think you
should add a parameter to the ini file supporting IJ_MODE_ABSOLUTE = 1
so
-Original Message-
From: Carl Helquist [mailto:[EMAIL PROTECTED]
Sent: 08 November 2008 07:39 PM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] I J code
Thanks for your reply, I suppose I was looking a Gcode answer. I
don't want
to change the interpreter
I have some Gcodes where the I and J are in absolute coordinates, EMC2 seems
to like I and J in incremental coordinates, is there a simple way, or
something that will enable EMC2 to read these Gcodes.
Regards
Dave
Mach3 supports both, G90.1 sets to absolute mode, G91.1 sets to
Wayne wrote
I'm definitely not a programmer so don't know if this is of any help or
not. Seems to have free source code for creating a back plotter /viewer.
http://www.codeproject.com/KB/vb/CNC_Viewer.aspx
Hello Wayne
I had a quick look I'm not a programmer either, so I'm sure if it will work
Ron wrote
Mach3 supports both, G90.1 sets to absolute mode, G91.1 sets to
incremental mode. Its valid to change it on the fly within a program.
ron ginger
Hello Ron
Its valid to change it on the fly within a program. Can you just explain
that to me please. It sounds quite useful.
Thanks
Dave Houghton wrote:
Hi
I have some Gcodes where the I and J are in absolute coordinates, EMC2 seems
to like I and J in incremental coordinates, is there a simple way, or
something that will enable EMC2 to read these Gcodes.
I and J in absolute is VERY odd, not standard at all. I think
On Sunday 09 November 2008 00:10:42 Jon Elson wrote:
I and J in absolute is VERY odd, not standard at all.
Well, I know at least one spark erosion machine that uses I and J as absolute
coordinates. So at least it's standard for this machine model. :)
Too bad I don't remember the manufacturer of
Hi Jon,
Actually absolute I,J isn't that uncommon. Many controls have a
parameter to select either absolute or relative I,J.
Les
Jon Elson wrote:
I and J in absolute is VERY odd, not standard at all. I think you would
need to write a computer program in your favorite language to read in
Jon wrote
I and J in absolute is VERY odd, not standard at all. I think you would
need to write a computer program in your favorite language to read in
the program a line at a time, and alter these coords when it sees a G02
or G03 move.
Hello Jon
I don' have a favorite language, so sadly I
Ron Ginger wrote:
I have some Gcodes where the I and J are in absolute coordinates, EMC2 seems
to like I and J in incremental coordinates, is there a simple way, or
something that will enable EMC2 to read these Gcodes.
Regards
Dave
Mach3 supports both, G90.1 sets to absolute mode, G91.1
At 10:13 PM 11/8/2008, you wrote:
Ron Ginger wrote:
I have some Gcodes where the I and J are in absolute
coordinates, EMC2 seems
to like I and J in incremental coordinates, is there a simple way, or
something that will enable EMC2 to read these Gcodes.
Regards
Dave
Mach3
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