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Author Topic: Radius on run, square on single step.  (Read 1558 times)

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Radius on run, square on single step.
« on: December 29, 2012, 06:57:33 PM »
Hi all,
I am just starting to run some test G Code on my new plasma machine. Mach3, gecko540 drive, Gantry type.
I made the code below with a 0 radius tool just so I could draw lines with a pen to start. When I step through the lines, the corners of the objects are sharp just as they are drawn. When I run the code at full speed, the corners are radiused on the order of .2" or so.
From this I think it is perhaps some motor setup. X and Y both run at 100 ipm with a "5" acceleration. Z at the moment is 30 ipm with "5" acceleration.
Can I adjust something to get sharp clean corners?

N0010 (Post processor: Mach3.scpost)
N0020 (Date:12/29/2012 Time:2:49:56 PM)
N0030 G20 (Units: Inches)
N0040 G40 G90 G91.1
N0050 F1
N0060 (Part: Drawing1)
N0070 (Operation: Outside Offset, 0, T2: Plate marker)
N0080 (Plate marker)
N0090 T2 M06  G43 H2
N0100 G00 Z0.5000
N0110 X4.7775 Y1.1924
N0120 Z0.1000
N0130 G02 X4.5855 Y1.0004 I-0.1920 J0.0000 F100.0
N0140 G01 X4.0002 Z0.100 F100
N0150 X2.5003 Y3.5983
N0160 X2.4997
N0170 X1.0004 Y1.0015
N0180 Y2.9999
N0190 X2.1549 Y4.9996
N0200 X2.8451
N0210 X5.1540 Y1.0004
N0220 X4.5855
N0230 G02 X4.3935 Y1.1924 Z0.1000 I0.0000 J0.1920 F100.0
N0240 G00 Z0.5000
N0250 X6.8528
N0260 Z0.1000
N0270 G02 X6.6608 Y1.0004 I-0.1920 J0.0000
N0280 G01 X6.3096 Z0.100 F100
N0290 X4.0007 Y4.9996
N0300 X4.2384
N0310 X6.9996 Y2.3809
N0320 Y1.0004
N0330 X6.6608
N0340 G02 X6.4688 Y1.1924 Z0.1000 I0.0000 J0.1920 F100.0
N0350 G00 Z0.5000
N0360 X6.8076 Y4.1468
N0370 Z0.1000
N0380 G02 X6.9996 Y3.9548 I0.0000 J-0.1920
N0390 G01 Y3.4727 Z0.100 F100
N0400 X4.5235 Y4.9996
N0410 X5.2981
N0420 X6.9996 Y4.4635
N0430 Y3.9548
N0440 G02 X6.8076 Y3.7628 Z0.1000 I-0.1920 J0.0000 F100.0
N0450 G00 Z0.5000
N0460 X8.1924 Y6.1924
N0470 Z0.1000
N0480 G02 X8.0004 Y6.0004 I-0.1920 J0.0000
N0490 G01 X8.0000 Z0.100 F100
N0500 X0.0000
N0510 X-0.0004 Y6.0000
N0520 Y0.0000
N0530 X0.0000 Y-0.0004
N0540 X8.0000
N0550 X8.0004 Y0.0000
N0560 Y6.0000
N0570 Y6.0004
N0580 G02 X8.1924 Y6.1924 Z0.1000 I0.1920 J0.0000 F100.0
N0590 G00 Z0.5000
N0595 G00 x0 y0   
N0600 M05 M30
Re: Radius on run, square on single step.
« Reply #1 on: December 29, 2012, 07:23:12 PM »
I bumped acceleration up to "25" on the x and Y axes which squared the corners quite a bit. I'll have to test the limits.