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Author Topic: artcam pro 2008 jerky motion issue  (Read 2471 times)

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artcam pro 2008 jerky motion issue
« on: June 03, 2010, 11:36:14 PM »
artcam pro 2008 jerky motion issue

I am having some trouble getting smooth motion out of my router.  I am under the impression, i can not recall why, that cv does not work with arc moves.  I actually have two systems.  A plasma system where I had to change the posts in sheet cam from mach with arcs to mach with out arcs.  Seemed to be necessary to get smooth motion out of plasma table.  The router on the other hand is still aproblem.  The posts in Artcam does not offfer a post with out arcs.  I should metion I have limited exposure to gcodes.  I just know the problem is associated with the I and j codes.  ANyone had any insite to this work be greatly appreciated

Ron
www.saltspringcnc.com
Re: artcam pro 2008 jerky motion issue
« Reply #1 on: June 04, 2010, 10:51:29 AM »
my mistake the issue is related to G2 and G3 codes
Re: artcam pro 2008 jerky motion issue
« Reply #2 on: June 04, 2010, 10:54:17 AM »
here is a sample.  It is for a 30 by 15 in oval.  It seems to almost stop as it transistion from one line to the next

test3)
G90
G20
G49
G0Z0.2500
M3 S15000
G0 X0.2501 Y15.4937 Z0.2500
G1   Z0.0400 F50
X0.2866 Y16.9981 Z-0.0036
X0.3998 Y18.4996 Z-0.0473
X0.5892 Y19.9924 Z-0.0909
X0.6717 Y20.4699 Z-0.1050
X0.5892 Y19.9924 Z-0.1191
X0.3998 Y18.4996 Z-0.1627
X0.2866 Y16.9981 Z-0.2064
X0.2501 Y15.4937 Z-0.2500
G2 X0.5892 Y19.9924 I29.5410 J0.0351 F100
G2 X3.0103 Y27.1952 I19.7952 J-2.6453
G2 X5.6221 Y30.0274 I7.3153 J-4.1258
G2 X8.7920 Y30.6713 I2.3823 J-3.6032
G2 X11.7484 Y28.8696 I-1.2736 J-5.4164
G2 X14.4533 Y23.9742 I-10.3456 J-8.9113
G2 X15.4108 Y11.0076 I-26.8353 J-8.5002
G2 X12.9897 Y3.8048 I-19.7952 J2.6453
G2 X10.3779 Y0.9726 I-7.3153 J4.1258
G2 X7.2080 Y0.3287 I-2.3823 J3.6032
G2 X4.2516 Y2.1304 I1.2736 J5.4164
G2 X1.9850 Y5.8552 I9.4055 J8.2753
G2 X0.2501 Y15.4937 I24.2326 J9.3373
G1 X0.2501 Y15.4937 Z-0.2500 F50
X0.2866 Y16.9981 Z-0.2876
X0.3998 Y18.4996 Z-0.3253
X0.5892 Y19.9924 Z-0.3629
X0.6717 Y20.4699 Z-0.3750
X0.5892 Y19.9924 Z-0.3871
X0.3998 Y18.4996 Z-0.4247
X0.2866 Y16.9981 Z-0.4624
X0.2501 Y15.4937 Z-0.5000
G2 X0.5892 Y19.9924 I29.5410 J0.0351 F100
G2 X3.0103 Y27.1952 I19.7952 J-2.6453
G2 X5.6221 Y30.0274 I7.3153 J-4.1258
G2 X8.7920 Y30.6713 I2.3823 J-3.6032
G2 X11.7484 Y28.8696 I-1.2736 J-5.4164
G2 X14.4533 Y23.9742 I-10.3456 J-8.9113
G2 X15.4108 Y11.0076 I-26.8353 J-8.5002
G2 X12.9897 Y3.8048 I-19.7952 J2.6453
G2 X10.3779 Y0.9726 I-7.3153 J4.1258
G2 X7.2080 Y0.3287 I-2.3823 J3.6032
G2 X4.2516 Y2.1304 I1.2736 J5.4164
G2 X1.9850 Y5.8552 I9.4055 J8.2753
G2 X0.2501 Y15.4937 I24.2326 J9.3373
G0   Z0.2500
G0 X0.0000 Y0.0000
G0Z0.2500
G0X0.0000Y0.0000
M5
M30

Offline Graham Waterworth

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Re: artcam pro 2008 jerky motion issue
« Reply #3 on: June 05, 2010, 05:15:33 AM »
Make sure you have CV turned on by putting a G64 in the start of the program and remove any G61's

Graham
Without engineers the world stops