Dave Engvall wrote: > Hi Jon, > > Do you mean to imply that your G53 and G54 coordinates are different. > I've always thought and used G53 as if it was a non-modal G54 and > therefore an easy way to use machine coordinates for a single move. > eg. G53G0Z0 ... for manual tool change. I'm not sure what I'm implying. When I said G53, I probably should have said "machine position" as seen in the main position display when you hit the # key, vs. relative position.
It seems that when entering an offset with the G10 L2 P2 Xnnn command, it enters your offset as the sum (or maybe difference) between the current machine X position and the number you supply in the command. So, if you wanted to make the current position X=0 for the G55 coord. system, you would need to know the current position in machine coords. This is pretty useless for me. Chris has described how to do it manually, it seems a bit complicated, and I have not tried it yet. What I wanted was a way to create a G55 offset that was a known distance from the G54 system. I suppose I could create some ghastly macro string that would fetch the G54 offsets and add a value to it and make that the G55 system. Chris shows how to do this with G92, I will have to try that as well. The way G10 L2 P2 worked on the ancient 1999 EMC was a s follows: step 1. In G54 coords, move to X=9.5 step 2. G10 L2 P2 X9.5 step 3. G55 The coord displays would now read X=0.0, and all work could be done relative to that position. G54 would go back to the original coord system. I think I have described the old behavior correctly. This may not have been optimum, but it was more easily usable to me. Maybe I'll get used to the way it works now, once I figure out how to use it. Jon ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
