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Topics - bob.mullikin

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General Mach Discussion / G31 Probing problem
« on: March 15, 2010, 03:48:33 AM »
Hello, I'm hoping to get some help.  I'm having a hard time with a g31 probing routine.  This is a macro and gcode that originally was posted by Terry (Vmax549).  It's a internal polar aray routine that probes the inside of a part in the x and y direction.  I modified it to be able to specify a Z depth amount and Z depth step amount so it would probe down say an inch or two in what ever step size i specify.  It cycles just fine for a while, but at some random point as it completes a step or more in z direction the G31 command doesn't send the probe out more than a tenth or so, it just jerks in short steps for a cycle or two or sometimes more and then it starts working again.  I've tried changing to slower feed rates, and everything else I can think of, but I"m out of ideas as to what could be causing this.  Sometimes it's around 40 G31 calls before it fails and other times it has been several hundred.

I updated to the latest lock down version of Mach3 today to try to solve this, but it didn't change anything.

I've included the files for anyone who would like to take a look at this.

General Mach Discussion / Help Mach turn OD cut arc
« on: March 01, 2010, 01:39:37 PM »
I hope someone can help me with this.  I think I have checked everything under the sun.  I'm running V3.042.029

Here's my problem.  I'm simply trying to turn a ball end on a 1/2" shaft.  I plugged the information into the wizard.  When I run the routine, what happens is my X axis gradually changes as the process operates.  X is set at .5" at the start.  This is verified.  After it makes 3 or 4 passes my X axis moves toward 0".  It doesn't seem to change in a set amount. 

I've checked the steps per inch over and over.  I've checked the backlash.  I've used a dial indicator and cycled the X 20 times to verify it does not change.  I've tried this in CV mode and in stop mode.  I've looked at the code created by the wizard and don't see anything that would cause a change my X calibration.

What am I missing here?


Mach SDK plugin questions and answers. / Probing g31 file question
« on: February 22, 2010, 02:52:46 PM »
I'm doing some probing.  Things are working fine, but what needs to be done to get the axes (X,Y,Z) listed along with the numbers in each column of the output file?   Have I missed a setting?

Thanks for any help

General Mach Discussion / Threading problem
« on: August 20, 2009, 01:59:28 PM »
Hello, I'm running v3.042.027  I'm running the following code to test a threading operation.  When I load the code I get an error message that says, "non integer value for integerline 14."  This is just a simple 1" 8tpi routine.  Can anyone suggest why mach3 turn doesn't like it?  If it matters, I used turbocad v 14 and their cam plugin to create the code.

% ( MYAPP01 )



G00 G40 G49 G80 G90


T0101 M06

G00 G90 G54 S779 M03

G43 H1 M08




G00 X1.483 Z1.

X0.983 Z0.079


G76 X.998 Z-0.7473 K0.05 D0.02 P1


G91 M09

G00 G28 X0. Z0.


Thanks in advance for your help!!!

Pages: 1