I think your focused on the word "calculated" and stop comprehending the rest of the sentence. So let me try and word what G10 L2 and G10 L20 do in a different way.
G10 L2 P1 Z-1.5 sets the offset of G54 Z to -1.5, (which is #5223) G10 L20 P1 Z0 calculates the value needed to make the current location of G54 Z0 Lets say I jog the Z axis to absolute machine coordinate -1.5 and my drill bit is just touching the top of the material. I want that point to be Z0. Now if I do G10 L2 P1 Z0 it sets the #5223 offset to 0, probably not what I wanted. The DRO reads Z-1.5000 because I stored an offset of 0 in #5223. Ok if I do G10 L20 P1 Z0 it calculates that it needs to set the offset to -1.5 so the G54 coordinate is equal to Z0.0000 and the DRO now reads 0.0000 for Z. To see what your current offset is just look on the DRO tab. If you break a drill bit you need to stop running code and start doing "chicken checks". If I'm not 100% sure I've got an offset correct I jog that axis to a position that I know what it should be and check the DRO. Using coordinate systems and offsets can be confusing so take your time and check, check, check. It does seem to me you should be setting the tool table not the coordinate system but I'm not fully sure of what your trying to do or what value is in #101. Perhaps a few lines of your G code might help... JT On 7/31/2014 5:10 AM, Gene Heskett wrote: > If that is in fact what it does, replacing the current value there, then > its exactly what I want to do, eg replace any value currently stored in > G55 and G56's image of Z, as opposed to adding #101 to it. Which is what > the L2 version seems to be doing. And its costing me money in the form of > broken tooling at $10 to $20 a mill, and in damaged pallets. > > If in fact replacement is what it does, and I will check that after I have > finished a nights sleep, what the heck does it mean by "calculated" > ------------------------------------------------------------------------------ Infragistics Professional Build stunning WinForms apps today! Reboot your WinForms applications with our WinForms controls. Build a bridge from your legacy apps to the future. http://pubads.g.doubleclick.net/gampad/clk?id=153845071&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
