14510
« on: September 30, 2010, 04:13:42 PM »
Ok do you ever home the machine by pressing the Ref All button?
Reason I ask is because you were saying about the zero position and about how Mach must reference to somewhere. Well what Mach references to is the machine coordinates and these are set by homing and the offset coordinates that you use (G54, G55 etc) all reference to them.
So just wondering if this could be a problem, now on a rotary axis I could see it being an issue, especially if you only rotate one way as the number will get so big and may roll over so Mach may have issues. With a linear axis it should not get so big but it may do if you are always resetting your offset zero and it just happens to be that you always move the same way when setting the zero.
As said this is just a stab in the dark but as a test how about moving your machine so the tool is fully negative in X and Y and fully positive in Z (table fully right and fully towards column and z fully up)_and then press Ref All, you can then move to where you want your offset zero to be and zero each axis and then see if there are still issues. As said its a long shot but the problem is a very weird one so everything should be considered.
If it does happen again make sure you look at the DROs and also the Toolpath and see whether they show that the Mach knows where the cutter is, ie it shows it going wild, or if they show that it is where it should be but obviously is not.
Hood