On 10/10/2014 12:13 PM, Jon Elson wrote: > On 10/10/2014 08:18 AM, Dave Cole wrote: >> I was trying to use a G92 offset to jog to the start position, set a new >> zero point, and then start the cut at the corner of the material. >> >> When the program is stopped midcycle, I'd like to reuse the G92 offsets >> so I can start the program again at the same start point. >> >> But the action of stopping the program seems to be screwing with the G92 >> offsets. Even though they are still shown on the screen, they >> are no longer active. >> >> > It is something that was put into EMC before 2002, I think, > at the urging of Rah Henry. > I never liked this "feature", where the G92 offsets are > cleared whenever you hit an M02 > or abort. One of the great features of Axis is that it > stores your G92 offset when you > use the touchoff button, and then restores that offset any > time it gets cleared. > > I think this may not work if you enter the G92 offset in MDI > mode. Try doing it > with touchoff and see if the behavior changes (assuming you > are using Axis.) > > Jon >
Ray Henry's involvement in the G92 is described in a webpage that involves Smithy. But it doesn't go into great detail. The G92 (set offsets), G92.1 (cancel offsets), G92.2 (cancel offsets but keep them stored in vars) and the G92.3 restore offsets from vars works via MDI as the docs explain. However the rules go out the window after a program stop mid cycle, then the G92 offsets go into limbo land. They are shown on the screen, but the offsets don't work and G92.2 and G92.3 no longer work. I don't see how this can be considered correct operation. I really think this is a bug. I can't see any useful purpose for the G92 offsets working this way. It seems very unintentional. We could do a touch off and set a work offset G54-G59.3 etc, but that requires more operator skill, which is in short supply right now. I'm trying to make operating this machine "simple" which is always hard to do. I'll attempt the "Touch Off idea" and see if I can make that work. Does anyone happen to know where in the source code the the program stop might be affecting the G92 offsets? I might try and fix this if the touch off idea falls flat. Thanks, Dave --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com ------------------------------------------------------------------------------ Meet PCI DSS 3.0 Compliance Requirements with EventLog Analyzer Achieve PCI DSS 3.0 Compliant Status with Out-of-the-box PCI DSS Reports Are you Audit-Ready for PCI DSS 3.0 Compliance? Download White paper Comply to PCI DSS 3.0 Requirement 10 and 11.5 with EventLog Analyzer http://p.sf.net/sfu/Zoho _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
