Topics

1

General Mach Discussion / Mach 3 not executing code as written

« on: October 12, 2009, 06:40:49 PM »

I've been having erratic results with my cnc router lately and couldn't quite pinpoint the problem but today I ran a simple program which illustrates the machine's behavior.  I've attached an image of the Mach 3 screen with the program loaded and the toolpath shown in the display window.  Another image shows an engraved logo on two pieces of wood.  The one at left is what the machine is supposed to cut and what it's done before.  The one at right is what it's cutting now.  I've also attached the file with the G-code.  I've checked to see if the machine is losing position, step motors losing steps etc., but whenever I go to the home switches, I'm always within a few 10 thousanths of where I'm supposed to be.  It seems I've eliminated everything but how Mach 3 is interpreting the program.  What could be causing this?

2

General Mach Discussion / "an unnamed file was not found"

« on: October 10, 2009, 10:45:18 PM »

I've started getting the pop up message "an unnamed file was not found".  This happens in conjunction with trying to open a file and no image comes on the screen and though the G-code loads, the highlighted cursor jumps to line 8 or 12 and can't be rewound or started from any other line.  The G-code is generated in BobCADCAM and I've reinstalled their post processor for Mach 3 but it doesn't seem to help.  This only happens on certain files.  Others I can open and run fine.  Any ideas?