On 08/21/2015 02:43 AM, Gene Heskett <[email protected]> wrote: > G1 F40 x(center of workpiece) y(offset to put tool at center of THIS > circle) Z-8.828 (which is about 5 thou above the top surface of the > workpiece as presently mounted) > > G92 x0 y0 z0 (subsequent motions s/b absolute moves from the present > location as it has moved by the line above) > > Next move is a g1 f10 z-0.025 > > Error is "move exceeds negative limit on axis 2" The machine is sitting > at the homed position nearly 9" up the post and the DRO says everything > is at 0,0,0,0. But while I can move it anyplace in its envelope, the > code can't lower it 25 thou? ? ? > > Since it doesn't physicly exceed the negative limit, and I can then run > it by hand, downward at least another 1.25" by the time I hit the > minimumas set in the ini file for axis 2, I have no other choice but to > believe that the interpreter is NOT checking the present position > against the value in the machines own G53 map. No clue what its > checking with, but the .ini files limits are not being hit. Gene, I cannot help but wonder if you have a G43 code in your program that, when acted, puts the tip of your tool outside the operating envelope. I have encountered this numerous times (although usually in the + direction) when I establish my Z-zero before the tool is loaded. Then when the G43 is enacted, there is insufficient headroom to retract the tool tip above the work, causing me to re-set the machine.
Craig ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
