Messages

1871

General Mach Discussion / Re: White blank screen.

« on: October 27, 2007, 04:40:51 AM »

Do you get a window with a white background or is the whole screen white with no window border?

Graham.

1872

Promote and discuss your product / MOVED: Mach3 and MAXNC10

« on: October 25, 2007, 11:53:38 AM »

This topic has been moved to General Mach Discussion.

http://www.machsupport.com/forum/index.php?topic=4599.0

1873

G-Code, CAD, and CAM discussions / Re: Subroutines

« on: October 25, 2007, 04:07:12 AM »

You set your tool onto the datum face and zero out as normal,  then if the depth of the cut needs to be changed e.g. a step depth is shallow then the tool offset is updated in the length part of the table to reflect the error amount.

So :-

Select tool 1.

Set the offsets table, tool length to Zero for tool 1

Touch the tool onto the datum face.

Zero out the Z DRO

Take a cut of a few thou.

Measure it.

Then adjust the offset length by the error

Remember to make the tool go deeper into the surface, you tell Mach that the tool is shorter.

Graham.

1874

G-Code, CAD, and CAM discussions / Re: Subroutines

« on: October 24, 2007, 04:57:59 AM »

They actually tell Mach how to move.

Actually, G90 Absolute says to Mach this dimension is from the datum.

Actually, G91 incremental says this dimension is from where you are now, move this amount.

Actually, G43 H1 says use offset 1 to compensate for the length of the tool.

Graham. 

1875

SmoothStepper USB / Re: Welcome to SmoothStepper forum.

« on: October 23, 2007, 06:08:25 PM »

Hi Greg,

I saw the prototype at the Galesburg event, it was very impressive then, it must be great by now, when can I get my sticky fingers on one?

Graham.

1876

G-Code, CAD, and CAM discussions / Re: Subroutines

« on: October 23, 2007, 05:49:05 PM »

G90 is absolute movements.

G91 is move incremental.

G43 is use height offsets, only if a Hnn is commanded.

Graham.

1877

VB and the development of wizards / Re: Possibility of having a blending radius command?

« on: October 23, 2007, 04:53:13 PM »

Its not as easy as it looks, you need to know a lot about what is coming up in the next moves, e.g. look ahead. You can't do this with a macro or g-code.

Also what if the rad is too big to fit in the V.

I once asked Art for auto rad and auto chamfer,  I think he is still laughing about it now.

Graham.

1878

G-Code, CAD, and CAM discussions / Re: Subroutines

« on: October 23, 2007, 04:32:30 PM »

Like this :-

O0001 (MAIN PROGRAM)
G00 G90 G43 X0 Y0 Z1.  Etc.
Z-.1
M98 P0002
Z-.2
M98 P0002
Z-.3
M98 P0002
Etc.
M30

O0002 (SUB PROGRAM)
G01 X-1. F10.
Y-1.
X0
Y0
M99

Graham.

1879

VB and the development of wizards / Re: phantom code

« on: October 21, 2007, 04:01:36 PM »

Have you tried it with a feed rate in the line "G91 G01 X-5. F10."

Graham.

1880

G-Code, CAD, and CAM discussions / Re: Mach 2 not working with G code produced by Turbo Cad/Cam

« on: October 19, 2007, 06:22:07 PM »

What G40 question, I must have missed it or lost track of it.

Graham.