Hi Dynamics tool length compensation for 5 axis in 3D world much complicated. First, tool compensation for 2 axis include touch with probe corner of the table and controller calculated rotation only one axis B that touch table with probe to define Z and it will compensate to tool length. For 5 axis need move axis B, C or A, to make targeted surface perpendicular to the probe and than everything same as for 2 axis routine for tool length compensation.
Thanks Aram > On Fri, Feb 29, 2008 at 02:51:20PM -0600, Stuart Stevenson wrote: >> Gentlemen, >> I am installing EMC2 on a Cincinatti 5 axis. This is sooner than I >> had planned. The timeframe is compressed. I work good under pressure. >> It is usually caused by procrastination (mine). This is not the case >> this time. I need to get the machine running by Friday of next week. >> Any and all help/comments/opinions will be greatly appreciated. >> The 5 axis tool length compensation is implemented with G43.1 >> instead of G43. This is no problem whatsoever. This is like the Fanuc >> and Haas controls. >> I would like to use the H number from the tool.tbl file with the >> G43.1 in the same manner as the H number with the G43. I grepped the >> directory and didn't find any reference to how the G43 and G43.1 were >> implemented. Where would I find the code to change the usage? >> thanks >> Stuart > > You misunderstand how G43/G43.1 work. They do not work differently > for multiaxis machines. > > The tool table works as usual with G43 H_. G43.1 lets you specify the > length directly in the gcode (G43.1 K___) and it sounds like you will > not use this. > > The actual difference with the 5 axis kinematics machine is that you > should specify [TRAJ]TLO_IS_ALONG_W=1. Then when you use G43 H_ or > G43.1 K___, the length offset, no matter whether it comes from the > tool table (G43) or gcode (G43.1), is applied to the W axis. The only > thing your cam needs to do is move the W axis (G0 W0) so the length > offset gets applied. > > Chris > > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
