Sounds like you may have a homing issue.. does Axis indicate that the machine is homed after you "home" and then move away from the home position?
Once homed Axis should indicated homed until you initiate a new home routine or you Estop the machine.. (there are probably a few other ways to un-"home" the machine also) >>it shows the virtual cutter in the Axis display 2" down the X axis even though the cutting head is sitting in the home position. When you did the touchoff with G54 and entered 2.0 you were telling EMC2 that you want the G54 work coordinates X axis position to be 2.0 at the moment you did the touchoff. Consequently the display updated so that it shows that you are at G54 coordinate position X 2.0, even though you are at machine position X 0.0. That is entirely normal. Without moving the machine you can have a different X position for each of the work coordinate system (G54, G55, G56 etc) G53 is the machine coordinate system. So usually (but not always depending on homing settings) when you home the machine the G53 X coordinate would be set to 0.0. I'd read up on the work coordinate systems. Once you understand those everything becomes much easier. Dave On 3/28/2010 6:38 AM, Mark Wendt (Contractor) wrote: > I was playing around with my machine yesterday, trying to learn the > functions of the buttons and menus in Axis. I got to the Touch Off > button and I not sure I'm doing the right thing or if I'm getting the > right behavior from the button (this is all done via "air" machining). > > I moved my X axis to where I'd simulated my part to be, hit the Touch > Off button, and the little window popped up. I entered 0.0 with P1 > G54 selected in the pull down. Some activity - disks whirling, small > activity bar, etc, then a warning window popped up saying the machine > had to be "homed" to do that. So, I homed the machine again, moved > to the same spot where I was before, and repeated the "touch off" > with the same results. Re-homed the machine, ran the touch off from > the home position, and set in 2.0 with P1 G54 selected in the > pulldown, and it sorta worked this time. I didn't get the > warning/error message, but now when the machine is homed, it shows > the virtual cutter in the Axis display 2" down the X axis even though > the cutting head is sitting in the home position. > > Not exactly the intended results, at least for what I was thinking > the "Touch Off" function to be. Is this correct behavior? If so, > how do I accurately touch off on a work piece and then set the work > pieces location as an offset from the "Home" position so the machine > knows where the work piece is? > > Thanks, > Mark > > > > ------------------------------------------------------------------------------ > Download Intel® Parallel Studio Eval > Try the new software tools for yourself. Speed compiling, find bugs > proactively, and fine-tune applications for parallel performance. > See why Intel Parallel Studio got high marks during beta. > http://p.sf.net/sfu/intel-sw-dev > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
