Messages

961

G-Code, CAD, and CAM discussions / Re: Mach3 cutting path is wrong

« on: April 18, 2013, 07:28:54 AM »

looking at the code you have no G02 or G03 commands so the issue has to be related to the CV settings you have set, increase the look ahead and reduce the feed by half for a start and then see what the difference is.

Graham

962

G-Code, CAD, and CAM discussions / Re: G02 G03 Mach3 bug

« on: April 15, 2013, 08:50:16 PM »

Do you have I&J set to Inc or Abs in config window?

Graham

963

G-Code, CAD, and CAM discussions / Re: loops in loops

« on: February 08, 2013, 04:24:38 AM »

The highlighted red code should be inside the sub.  its in no mans land there.  Also make sure you have an end of line on the last line of the code.

Graham

O2         (moves axis to different part of sheet to carve heart)
M98 P1 L32        (Calls O1 to cut heart in 0.1mm increments through ¼”metal)
#2=[#2-38]      (advances axis counter)
G52  Y#2      (moves axis to next heart in line)
M99

#1= -0.1
O1         (sub for carving hearts)
Bunch of lines of gcode that inscribe heart
#1=[#1-.01]      (advances depth by 0.1mm increments)
M99

964

General Mach Discussion / Re: Skipped Parts

« on: February 08, 2013, 04:05:52 AM »

Hi Guys,

sorry for the delay, its been a very busy week so far.

I can see no obvious problems with the g-code, the only thing that can be off putting is Mach3 and a combination of subs and G91 code can cause the tool path to be drawn wrong.  If you are not using tool compensation then the G40's can be removed as Mach3 is not over keen on tool comp codes in subs ether. Blank(s) or comment(s) as the first line(s) of the sub can cause problems too in some circumstances.  Lastly it is a good idea to have a % only as the first and last line of the code, none in the middle.

You will all be pleased to know that Mach4 has none of these problems  

Regards
Graham

965

G-Code, CAD, and CAM discussions / Re: Gcoding help please?

« on: January 31, 2013, 04:39:51 PM »

M6 T5
M3 S3200
G43

G00 Z2
G00 X10.0 Y0

M08
F100
G1 Z-1

G01 G41 X0
X-74.
G1 Y43
G1 X-64
G1 Y40

G00 Z2
G40 X-10 Y40

Something like this.

966

G-Code, CAD, and CAM discussions / Re: Gcoding help please?

« on: January 31, 2013, 04:25:34 PM »

The G41 has to be commanded on a feed in line E.G.

G00 X10. Y0
Z-2.
G01 G41 X0 D6 F500.
Y25.
X-25.
Y0
X0
G40 X10.
G00 Z10.
M30

967

G-Code, CAD, and CAM discussions / Re: G-Code scaling program, mm to Inches and back

« on: January 29, 2013, 06:49:40 AM »

Change the extension from .NC to .TAP

Graham

968

G-Code, CAD, and CAM discussions / Re: Mach3 cutting path is wrong

« on: January 15, 2013, 05:28:07 PM »

I guess so as they all work in a similar way, you have to turn 3d data into a 2d line to put a tool around it,  If you extract an arc as line segments it causes all sorts of problems with tool comp and the like so its worth finding out how to do the job right, its not Mach that is at fault here.

Graham

969

G-Code, CAD, and CAM discussions / Re: Mach3 cutting path is wrong

« on: January 15, 2013, 05:18:14 PM »

When you are creating the rads from the 3d model you are extracting a set of line segments not an arc.

You need to create and arc from the lines or extract an arc, I don't use Edgecam so I don't know how to tell you how to do it so you will have to ask there Tech guys or get on there forum for help.

Graham

970

G-Code, CAD, and CAM discussions / Re: Mach3 cutting path is wrong

« on: January 15, 2013, 05:05:51 PM »

Try this code and see what you get :-

%
O0001 (2 SLOTS)

G21 G40 G80 G17

N1 (FLAT 6MM)
G54 G00 G90 G49 X14.733 Y14.674
S18000 M3
Z21.
G01 Z15. F300.
X13. Y15.9 F3000.
G02 X13.1 Y16. R0.1
G01 X56.9
G02 X57. Y15.9 R0.1
G01 Y14.1
G02 X56.9 Y14. R0.1
G01 X13.1
G02 X13. Y14.1 R0.1
G01 Y15.9
X14.733 Y14.674
G00 Z21.
X15.444 Y33.687
G01 Z15. F300.
X13. Y35. F3000.
G02 X14. Y36. R1.
G01 X106.
G02 X107. Y35. R1.
G01 Y33.
G02 X106. Y32. R1.
G01 X14.
G02 X13. Y33. R1.
G01 Y35.
X15.444 Y33.776
G00 Z21.
M30
%

Graham