Messages

1

General Mach Discussion / Re: DRO error in mm

« on: May 25, 2009, 08:35:34 PM »

Thanks to everyone.  I think I understand now.  Especially since I know my lead screw is in inches not metric.  That explains why so many units in inches always comes out as commanded, but metic does not.  I just assumed that the DRO's would track the input commanded. 

I appreciate all the help.  I wasn't sure whether to correct the errors (by resetting the DRO's ) or leave them as they are.  I can see that I'm more accurate to leave them alone.

2

General Mach Discussion / Re: DRO error in mm

« on: May 24, 2009, 07:39:03 PM »

I'm not sure.  Where do I check (change) them?  I'm using the Taig mill with the R3 version of Mach 3

3

General Mach Discussion / Re: DRO error in mm

« on: May 24, 2009, 05:43:44 PM »

Thanks.  That's probably all it is.  It's a Taig milll and I can usually get .001 inch out of it.  Siince that is only .025 mm, that may be the problem.

4

General Mach Discussion / DRO error in mm

« on: May 24, 2009, 04:40:36 PM »

I have been working in inches for some time and the DRO's always read exactly what I commend.  ie: X1.2345 reads X1.2345 after the move.  I just switched to a project in mm by starting my code with 21.  I set X=0 and then moved X=10.  The DRO reads X 10.0013.  It happens in the Y axis also - and the incremental change is not always the same amount.  ie: X54.0635 becomes X54.0639 but
Y29.93565 becomes Y29.9371.   Can anyone tell me what the problem might be.

Thanks

Murray

5

General Mach Discussion / Re: Mach 3 Subroutine Codes

« on: November 06, 2008, 12:33:00 PM »

Thanks again.  That was the solution.  I'm new, but I already can tell you that I really appreciate the help you guys give.  Hope someday I'll be smart enought to help others. 

6

General Mach Discussion / Re: Mach 3 Subroutine Codes

« on: November 06, 2008, 12:19:11 PM »

Thanks for your help.  Now I have another problem.  A white window appeared below the Mach 3 screen and had an option to "Simply window" and I clicked on it.  Now I have a gray screen with only the FIle, Config, Function Cfg's, etc. across the top.  I've lost all the DRO's and other window info.  Any suggestions?

7

General Mach Discussion / Mach 3 Subroutine Codes

« on: November 06, 2008, 09:47:45 AM »

I'm new with a Taig CNC, Mach 3 and BobCadCm to learn.  I notice that the last line of any code does not show in the Mach 3 Program Run window.  In fact, when I write a subroutine starting with M98 and ending with M99, the subroutine runs, but the program stops at the last line in the subroutine - and doesn't return to the program.  I found that if I added another M99 (one after the other), the code now shows in the window and the program runs correctly.  Any help would be appreciated.