Igor Chudov wrote: > Jon, > > Your suggestion of G92 was good. > > Things are a little finicky. I cannot run already loaded program with G92. > > I have to say G92 from MDI, THEN I have to load (open file) the program, and > then it works. > > But I at least found one, though cumbersome, way of doing it so I am happy. > I am thinking that it is a bug in AXIS or the planner that requires me to > reload a program. > > Yes, I'm not sure it is a "bug", but some of the way Axis handles the G92 offsets isn't well documented, or else I messed it. Touch off does something, and starting and the ending or aborting of a program does something. What EMC2 itself does with work offsets is perverse, to my way of thinking, and Axis tries to gloss over the EMC2 behavior. If I use touch off, I am totally unaware of what is going on "under the hood". If I use a G92 explicitly, either in the program or from MDI, I expose some of that underlying behavior. I have never worked with it enough to be fully confident I know how it actually works. I'm pretty sure it was Chris Radek who worked all this out a number of years ago, and that was the main force that caused me to start using Axis.
Anyway, the last time I tried to use G92, I think I found that if I did a G92.1 first, that would zero out the offset, so the offset could be reapplied with G92 X<something>, etc. If I didn't zero out the offset, then the next time I applied a G92, it ADDED to the offset. Is that what you were seeing? All this is from vague memory, due to the uncertainty how the thing works, I try to use is as little as possible. If we can figure out what is really going on, maybe we can improve the documentation. > I also must say, that I worked with a Hurco CNC mill today. It is a nicely > designed conversational control, from 15 or so years ago. But I must say > that EMC is a much more powerful system. > Yes, the truly conversational stuff is pretty nice for one-off projects. We have a couple Bridgeport EZ-Tracks in our shop at work, and the guys there really never use G-code. But, I really don't miss it all that much at home, the nature of the stuff I do fits well to EMC and the little G-code writer programs I have. Jon ------------------------------------------------------------------------------ The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE: Pinpoint memory and threading errors before they happen. Find and fix more than 250 security defects in the development cycle. Locate bottlenecks in serial and parallel code that limit performance. http://p.sf.net/sfu/intel-dev2devfeb _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
