CAD CAM EDM DRO - Yahoo Group Archive

Re: toolpath creation problem or wrong interpretor setup?CODE SAMPLE INCLUDED

Posted by jagco1998
on 2002-11-01 20:07:19 UTC
Yeah, somehow the accel rate got misconfigured and I had to redo
motor tuning. Deceleration on the Y axis was a little lower than the
X and Y couldnt keep up.Hence the odd rapid Z safe move to the
second set of pocketed arcs.
But I still have a problem where it plunges into the material....
This is about half of the code attached, and approximately where it
plunges diagnally into the stock. It's FANUC. MACH1 seems to like it
(or then again, maybe thats the problem, as Surfcam FREE only comes
with a few PP)
The feed rate is slowed way down so I could pinpoint(somewhat) where
the problem occurs.
I've initially rewound the code in MACH1 and zero'd all axiis, then
I jog to X0 Y0 Z1 and start the code from there. The code will run
correctly throughout, with exception to where it crashes at the end
of the portion of code that Ive included.If I let it run from this
crash point,all the rest of the toolpaths are executed as they
should be, but the "real time display" in MACH1 clearly shows the
tool travel to X0 Y0 Z0 diagnally through the stock ,and then back
up to safe Z(1), then it executes right from there.

CODE

%
O0
(Surfware, Inc.)
(5703 Corsa Ave)
(Westlake, Ca. 91362)
G17 G40 G80 G90
T1 M6
M3 S2500
G00 G54 X1.001 Y0
G43 Z1. H0
M9
G00 Z0.72
G01 Z0.57 F2.0
G03 X0.948 Y0.053 I-0.053 J0 F4.0
X0.895 Y0 I0 J-0.053
X0.948 Y-0.053 I0.053 J0
X1.001 Y0 I0 J0.053
G01 X1.061
G03 X0.948 Y0.113 I-0.113 J0
X0.835 Y0 I0 J-0.113
X0.948 Y-0.113 I0.113 J0
X1.061 Y0 I0 J0.113
G01 X1.121
G03 X0.948 Y0.173 I-0.173 J0
X0.775 Y0 I0 J-0.173
X0.948 Y-0.173 I0.173 J0
X1.121 Y0 I0 J0.173
G01 X1.181
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X0.948 Y-0.233 I0.233 J0
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G01 X-0.7108
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G00 Z1.
M9
G49 Z0 M5
T2 M6
M3 S2500
G00 X-0.2132 Y0.2253
G43 Z1. H0
M9
G00 Z0.72

ect.
ect.....

Thanks for the diagnoses

Regards,
Jim
--- In CAD_CAM_EDM_DRO@y..., "Tim Goldstein" <timg@k...> wrote:
> Jim,
>
> Lot's of us willing to help, but we can not do it blind. If the
problem
> definitely occurs in the first 10 lines for sure, seeing them will
help. If
> you are not sure how much of the code processes before the problem
than it
> will just be wasting everyone's time.
>
> I am sure you can understand that we can not help you a whole lot
from just
> a general description and no specifics. All I can suggest is to
try using a
> different G-code viewer program. If it displays correctly in a
couple of
> them the problem is likely in the machine and/or software set-up.
>
> As some general suggestions, I like to run the part program
without having a
> cutter in the spindle or material on the table if I am not sure
what is
> going to happen and especially on a new machine/software/CADCAM
> package/etc.. Then unless you are REAL sure you have all the
spindle control
> codes and required dwells for the spindle to come up to speed I
would just
> turn the spindle on before I start the program. Also I will cut
the part
> from wood or foam when I have made any major changes or am using a
brand new
> setup. Another thing I do when there are lots of changes is drop
the feed
> override down to a real low value and/or single step through the
program.
> This will also help if you think you may be experiencing lost
steps. Taking
> a machine and software that you are not intimately familiar with
and knowing
> what it will do and combining that with G-code that you are not
100% sure of
> and running it with metal and nice new cutters it a great recipe
for broken
> tooling.
>
> Welcome to the CNC club. It is the fastest way to destroying
tooling that I
> have ever experienced. In my case it is virtually always a case of
idiot at
> the switch. I have learned that if I can not buy 2 or 3 of the
same cutter
> to just not get it at all. Nothing like having a drawer full of
spares to
> keep you from breaking an end mill. Having only one of a size
almost seems
> to be an invitation to a learning experience.
>
> Tim
> [Denver, CO]
>
> ----- Original Message -----
> > Tim,
> > I would love to but its of a prototype that I've designed and
I'd
> > rather not take the chance of somebody stealing my idea before I
get
> > a chance to build it.
> > Would it help if I posted the first 10 lines or so?Because Im
> > guessing that's where the problem is. I just dont know enough
about
> > Code to pinpoint the problem.
> >
> > Regards,
> > Jim
>
> > Addresses:
> > FAQ: http://www.ktmarketing.com/faq.html
> > FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> > Post Messages: CAD_CAM_EDM_DRO@y...
>
> > OFF Topic POSTS: General Machining
> > If you wish to post on unlimited OT subjects goto:
> aol://5863:126/rec.crafts.metalworking or go thru Google.com to
reach it if
> you have trouble.
> > http://www.metalworking.com/news_servers.html
> >
> > http://groups.yahoo.com/group/jobshophomeshop I consider this
to be a
> sister site to the CCED group, as many of the same members are
there, for OT
> subjects, that are not allowed on the CCED list.
> >
> > NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY
POSTING THEM.
> DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........

Discussion Thread

jagco1998 2002-11-01 11:31:25 UTC toolpath creation problem or wrong interpretor setup? Tim Goldstein 2002-11-01 12:00:07 UTC Re: [CAD_CAM_EDM_DRO] toolpath creation problem or wrong interpretor setup? jagco1998 2002-11-01 12:48:14 UTC Re: toolpath creation problem or wrong interpretor setup? j.guenther 2002-11-01 13:03:44 UTC RE: [CAD_CAM_EDM_DRO] Re: toolpath creation problem or wrong interpretor setup? Tim Goldstein 2002-11-01 13:08:29 UTC Re: [CAD_CAM_EDM_DRO] Re: toolpath creation problem or wrong interpretor setup? jagco1998 2002-11-01 20:07:19 UTC Re: toolpath creation problem or wrong interpretor setup?CODE SAMPLE INCLUDED Tim Goldstein 2002-11-01 21:32:18 UTC RE: [CAD_CAM_EDM_DRO] Re: toolpath creation problem or wrong interpretor setup?CODE SAMPLE INCLUDED Jim Brown 2002-11-01 22:14:30 UTC RE: [CAD_CAM_EDM_DRO] Re: toolpath creation problem or wrong interpretor setup?CODE SAMPLE INCLUDED Alan Marconett KM6VV 2002-11-02 10:29:45 UTC Re: toolpath creation problem or wrong interpretor setup? Jim Brown 2002-11-02 13:10:46 UTC Re: [CAD_CAM_EDM_DRO] Re: toolpath creation problem or wrong interpretor setup? Ian W. Wright 2002-11-03 07:15:21 UTC Re: [CAD_CAM_EDM_DRO] Re: toolpath creation problem or wrong interpretor setup? Alan Marconett KM6VV 2002-11-03 15:04:39 UTC Re: toolpath creation problem or wrong interpretor setup?