Messages

11

General Mach Discussion / Re: Coordinate Shift When Thread Milling

« on: December 08, 2010, 05:16:49 PM »

Overloaded,

The machine is moving to the coordinates on the dro's which are about 4.5 inches from where they should be.

12

General Mach Discussion / Re: Coordinate Shift When Thread Milling

« on: December 08, 2010, 05:10:55 PM »

Hood,

I have to copy the file from one machine to another.  I have the file on the desktop of the machine connected to the internet, but can not attach it to my reply  -path does not exist ??

13

General Mach Discussion / Re: Coordinate Shift When Thread Milling

« on: December 08, 2010, 04:23:00 PM »

Overloaded,

The g21(mm) is line 03 in program.

The the values are in millimeters.

Is there somewhere else I need to change the millimeters?

14

General Mach Discussion / Re: Coordinate Shift When Thread Milling

« on: December 08, 2010, 03:58:11 PM »

Hood,

Is this what you need?

15

General Mach Discussion / Re: Coordinate Shift When Thread Milling

« on: December 08, 2010, 02:39:34 PM »

Hood,
I saw it but I don't know what the xml is.

16

General Mach Discussion / Re: Coordinate Shift When Thread Milling

« on: December 08, 2010, 02:36:14 PM »

The actual machine coordinates change.  

Operation:

When I center spindle over shaft:  MC x=17.9441, y=6.6080.   Zero user coordinates, x=0 y=0

Load code:  MC x=455.7804, y=167.8425  User coordinates x=437.8363, y=161.2346.  This change occurred without running the code.

If Mach 3 is shut down and restarted the shaft zero is again x=17.9441 and y=6.6080.  

17

General Mach Discussion / Re: Coordinate Shift When Thread Milling

« on: December 08, 2010, 11:06:38 AM »

Any ideas why the machine coordinates do not repeat when I return to the center shaft.  My understanding is that the machine coordinates in Mach are always repeatable as a reference to table position.  After I run this code, the machine coordinates change!

18

General Mach Discussion / Re: Coordinate Shift When Thread Milling

« on: December 07, 2010, 07:40:20 PM »

See attached file

19

General Mach Discussion / Coordinate Shift When Thread Milling

« on: December 07, 2010, 05:31:21 PM »

Thread Milling Problems

When I attempt to run an old threading program (Mach 3 Wizards) my y-axis shifts about 4 inches.  When I returned to the center (eyeball) of the 6 mm shaft both the machine coordinates center, and the dro centers are off by approximately 4 inches.
I also lose the ability to jog, unless the shift key is used.
If I reload the program, using the machine coordinates I can return to the center of the shaft.

I have generated a new g code using Mach 3 Wizards with the same effect.

If I run an old circle g code, everything seems to work normally.

Any ideas as to what's going on?
AJ

20

General Mach Discussion / Parallel Port Adaptor "T"

« on: March 14, 2010, 08:07:06 PM »

I have a situation which I think would benefit from a parallel port adaptor “T” plug.
I would like to access different pins in the printer cable for use with other hardware without going to the breakout board on the machine. I have thought about using an A/B switch and jumping the switch on the pins I need from the added hardware printer cable to the printer cable from the breakout board. A “T” plug adaptor at the PP at the computer would make it easier.
Is there such a plug available?

AJ