Need Help!- Axis shift during machining

[zeeshan.insight]

I am using emc2 to control motenc lite controller. And using mastercam for creating nc data. the problem is that while machining x-axis shift to +ve side and z-axis take more depth than define. i explain it with an example " i make a rectangle of any size and make a program of conour on outside boundary. Define z total depth -1mm and depth of cut .01mm. During the machine running x shifts to +ve side and z ends with the depth more than -1mm. Anyone can help me out.

[Big John T]

Is this a stepper system?

Are you loosing steps?

http://www.linuxcnc.org/docview/deve...tics.html#r1_3

John

[zeeshan.insight]

No these are contraves servo motors with 2500 ppr encoders.

[zeeshan.insight]

i am attaching images of a job in which x-axis shifting to one side. It might give the clear picture

[Big John T]

That's a pretty clear picture. I would have to guess some kind of hardware problem. Perhaps someone else has a better idea.

John

[zeeshan.insight]

John by the hardware i think you mean about ball srew, motor mounting, pulleys etc.

[PCW_MESA]

Originally Posted by zeeshan.insight John by the hardware i think you mean about ball srew, motor mounting, pulleys etc.

Might also be x axis encoder losing or gaining counts (electrical noise?)

[Big John T]

and like Peter said electrical too...

John