Hi to all,
I'm a newbie.I'm trayn some software and I have some problem with this 2 program.So I drawing a circe in autocad-> export in dxf format->open Deskam2000->Choise Contour->save toolpath cnc->open Kcam->Open file(circle.gc) and I found a line!?
Why?
Giansa
sorry for my English

I'm having the same problem. It has something to do with the Post Processor settings X,Y,I,J. Does anyone know the right tokens, variables, and movement scripts settings in DesKam to get #2 below to look like #1. Thanks, John

1. created by KCam

N001 [KCAM CONVERSION]
N002 [ORIGINAL FILE: 2 INCH CIRCLE.DXF]
N003 %
N004 G90
N005 M03
N006 G00 Z1
N007 G00 X3 Y2
N008 G00 Z0
N009 G01 X3 Y2 Z0
N010 G02 X1 Y2 I2 J2
N011 G02 X3 Y2 I2 J2
N012 G00 Z1
N013 G00 X0 Y0
N014 M05
N015 M30

2. created by DesKam

N001 [CREATED 7:18:30 PM 10/20/2003 FROM 2 INCH CIRCLE]
N002 [POST = KCAM]
N003 [TOOL 0 = 0]
N004 %
N005 G90
N006 M03
N007 G00 Z1
N008 G00 X3 Y2
N009 G01 X3 Y2 Z-1
N010 G02 X3 Y2 I2J2
N011 G00 Z1
N012 G00 X0 Y0
N013 M05
N014 M30

This is just a guess, since I don't know your software at all, but change your maximum arc command to 1/2 or 1/4 of a full circle. This will create endpoints that are different than the start point, which is what makes a full circle arc command seem a bit "strange" to your controller, because it is already at the endpoint position named in the full circle command.

I have this

From dxf to Kcam
N001 [KCam Conversion]
N002 [Original File: Disegno.dxf]
N003 %
N004 G90
N005 M03
N006 G00 Z3
N007 G00 X-20 Y0
N008 G00 Z-0.5
N009 G01 X-20 Y0 Z-0.5
N010 G02 X20 Y0 I0 J0
N011 G02 X-20 Y0 I0 J0
N012 G00 Z3
N013 G00 X0 Y0
N014 M05
N015 M30

The same drawing from deskam2000 to kcam

N0100 T1 M06
N0100 G00 X0.0000 Y0.0000 Z3.0000
N0100 X19.0000
N0100 G01 Z-0.2500 F1000.00
N0100 G02 X19.0000 Y0.0000 I-19.0000 J0.0000
N0100 G01 Z-0.5000 F1000.00
N0100 G02 X19.0000 Y0.0000 I-19.0000 J0.0000
N0100 G01 Z-0.7500 F1000.00
N0100 G02 X19.0000 Y0.0000 I-19.0000 J0.0000
N0100 G01 Z-1.0000 F1000.00
N0100 G02 X19.0000 Y0.0000 I-19.0000 J0.0000
N0100 G00 Z3.0000

TNx
Giansa

The same general principles apply. There are several different permutations to guess through, to get the proper settings for your controller to recognise arc output properly.

As I pointed out before, you should change your maximum arc output command to 1/2 of a circle. Also, you need to discover whether the I and J components of the G02/G03 command are to be incremental or absolute position values. These settings might also change depending on whether your main program is running in absolute (G90) or incremental (G91) mode.

Anyone know where to change the maximum arc output in DesKAM to 1/2 of a circle. I can only find a place to change the minimum arc length and radius settings. Thanks, John

Try KCam 4.0.8 it will open a DXF circle created by DesKam