What I did with 2.4.x is 1 G55 to select a coordinate system with no offsets 2 In the MDI window T1 M6 G43 to load my tool 3 using a dowel I move the tool to the spindle nose and slowly move away till the dowel just passes under then checking that the Z axis is selected I touch off the tool table and leave it at 0.0
... repeat 2 and 3 for all tools G54 to select coordinate system 1 using the same dowel method I set one of the tools (usually T1 a turning/facing tool) to the work piece face and touch off G54 and enter 0.375 (the diameter of my favorite dowel that I keep handy by the lathe) now all my tools Z0 are the same... for a parting tool when I touch off you have to enter -the width of the cutter, for threading tool shapes just do the math to figure out where the center of the point is when you touch off the tool table. My lathe has a turrent so I made 8 pyvcp buttons one for each tool and now I just press the button to load a tool... If you have not looked at ngcgui you need to... it is on the forum in the subroutines section. I use it for 99% of the ops I do on the lathe as it is so fast and predictable. I can set up an op to face set Z0 to the new face, turn od, drill, bore id, and part off in a minute or less... do that by hand. Did I mention that I love using ngcgui? John On 10/19/2011 6:30 PM, Brian May wrote: > I am confused on G43 and G54 for a lathe. > > I am confused on how G43 works with G54 for a lathe. I set all my tools on > the Z axis to the spindle nose (G54 Z is set at machine 0 or variable 5223 > is 0) Then I take tool 1 and place it at the end of the part and touch off > the Z axis G54 at 0. This sets my variable 5223 to lets say 1. From what I > though, That 1 would then be added to all my tool offsets to give me that > actual zero. So far everything is working and I make a part. > > Then I add another tool and touch of the end of the tool to the spindle nose > and my Z for that tool is incorrect? It is located very similiar to the > other tools in location of Z, however the number in the tool offset is very > different and it does not go to the correct location.... > > If there is something for G54 in the Z axis, does this effect the tool > offset G43 when setting it? Am I wrong in thinking that G43 should be from > machine 0? > > The sequence I take when setting the tool is: > in MDI I type > T7 M6 > G43 > Then set the tool > > Should I not do the G43 when setting the tool to the end of the spindle > nose? > > Thanks > Brian > ------------------------------------------------------------------------------ > The demand for IT networking professionals continues to grow, and the > demand for specialized networking skills is growing even more rapidly. > Take a complimentary Learning@Ciosco Self-Assessment and learn > about Cisco certifications, training, and career opportunities. > http://p.sf.net/sfu/cisco-dev2dev > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ The demand for IT networking professionals continues to grow, and the demand for specialized networking skills is growing even more rapidly. Take a complimentary Learning@Ciosco Self-Assessment and learn about Cisco certifications, training, and career opportunities. http://p.sf.net/sfu/cisco-dev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
