Messages

951

G-Code, CAD, and CAM discussions / Re: M6 Macro Help

« on: July 16, 2013, 04:16:08 PM »

All I will say is, don't expect future versions of Mach to work that way.

952

G-Code, CAD, and CAM discussions / Re: M6 Macro Help

« on: July 16, 2013, 10:28:44 AM »

 

953

G-Code, CAD, and CAM discussions / Re: M6 Macro Help

« on: July 16, 2013, 03:43:06 AM »

I am not sure what it is you are trying to do, G28 on its own will do nothing useful it needs an axis commanded with it, e.g. G28 X0 or G28 Z0 to tell it which axis to home not only that but you would normally have the machine in G91 mode to stop it rapiding via the datum point first.

A normal G28 command would look something like this :-

G91 G28 X0 Y0 Z0

This will send all 3 axis to the home position in one direct move.

G90 G28 X0 Y0 Z0

Will move to the home position by going to the current XYZ zero point first then to the machines home position.

You can also use G91.1 with G28 to search for the home position.

954

G-Code, CAD, and CAM discussions / Re: G54-G59 Work offsets

« on: July 10, 2013, 11:03:50 AM »

Something along this line will do the job

Graham

%
(USE FIXTURE OFFSET G54)

G21 G40
T1 M6
G52 X0 Y0
G54 G00 G90 G43 X0 Y0 Z25. H1 S750 M3 (MOVE TO FIXTURE DATUM)
(FIXTURE LOCATION 1)
G52 X20. Y20.               (SET FIRST LOCAL DATUM)
M98 P0001                    (CALL SUB PROGRAM)
G52 X0 Y0                     (CANCEL LOCAL DATUM)

(FIXTURE LOCATION 2)
G52 X50. Y20.
M98 P0001
G52 X0 Y0

(FIXTURE LOCATION 3)
G52 X80. Y20.
M98 P0001
G52 X0 Y0

(FIXTURE LOCATION 4)
G52 X80. Y50.
M98 P0001
G52 X0 Y0

(FIXTURE LOCATION 5)
G52 X50. Y50.
M98 P0001
G52 X0 Y0

(FIXTURE LOCATION 6)
G52 X20. Y50.
M98 P0001
G52 X0 Y0
M5
M30

O0001 (SUB PROGRAM)
G00 X-5. Y0                   (MOVE TO FIRST HOLE)
G81 Z-10. R1. F125.        (DRILL FIRST HOLE)
X5.                                (DRILL SECOND HOLE)
G80
M99
                        
%

955

Promote and discuss your product / Re: Learn the truth about BobCAD-CAM

« on: July 09, 2013, 01:31:39 PM »

Post a IGES model of the part so we can see just what you are trying to make.

956

G-Code, CAD, and CAM discussions / Re: Zero a display

« on: July 08, 2013, 03:30:13 AM »

You could just do a G92 A0

957

G-Code, CAD, and CAM discussions / Re: Post processor G-code sherline 2010

« on: July 08, 2013, 03:28:21 AM »

Chances are that the Fanuc 0M will work unmodified.

958

G-Code, CAD, and CAM discussions / Re: AlphaCAM, Mach3 milling post processors

« on: May 20, 2013, 06:40:34 PM »

Please post the Alphacam file you used to produce the code

959

G-Code, CAD, and CAM discussions / Re: AlphaCAM, Mach3 milling post processors

« on: May 20, 2013, 08:23:37 AM »

Hi Henry,

post the code you are trying to run and attach the AlphaCAM file so I can see where your problem originates.

Graham

960

G-Code, CAD, and CAM discussions / Re: Unwanted datum shift in x axis

« on: May 06, 2013, 12:22:44 PM »

I want to know what the noise is.

If its a loose ball nut or bearing/housing or motor mount then that can cause problems with position.  I would check all the clamps, nuts and bolts first and make sure every thing is solid.  It has been known for ball nuts to be loose in the housing and sliding about.

Graham