> > Perhaps it was just a very light skim cut?
I doubt it, because that tool position was never used with LCNC on the lathe until yesterday. I reset the tool today and same thing happened. It appears the touch off feature is using the active coordinate system to calculate the difference at some point (G54 in this case). But it's setting the new tool as it should be, comparing it with the others in absolute coordinates. In fact, in my tool table the Z coordinate numbers look right, I don't see any tool having more than 20 mm of difference with any other, so nothing crazy there. Could this be a feature not so known? At least in 2.8? Or am I already getting nuts with all these quarantine bad sleeping? I'll keep testing and telling you how this goes, but so far it looks like it's working like that. I mean, It's not a bad thing, the only thing that matters here is the difference between the tools, not the actual coordinate system in wich they are compared. El mié., 27 may. 2020 a las 5:08, andy pugh (<[email protected]>) escribió: > On Wed, 27 May 2020 at 05:12, Leonardo Marsaglia <[email protected]> > wrote: > > > I set the Z offset for the G54 coordinate with the facing tool that was > > already set and then I took a skim cut with the new unsetted tool on the > > same face (Z0 position for the workpiece) and touch off the Z axis for > that > > tool with a 0 value. Then I re checked all the other tools and they are > all > > showing 0 on the face of the workpiece. Is this the normal behaviour? or > is > > this just coincidence? > > That doesn't sound right. > > If you took a skim cut then you moved the workpiece zero. So setting > the tool to be zero at that point should have made it inconsistent > with the other tools. > (ie, if you put in a new workpiece and faced it with your facing tool, > it would face at the old length. And if you then changed to the new > tool and faced at Z = 0 it would face off at the slightly shorter new > part length.) > > Perhaps it was just a very light skim cut? > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is > designed for the especial use of mechanical geniuses, daredevils and > lunatics." > — George Fitch, Atlanta Constitution Newspaper, 1912 > > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
