On 6 April 2014 05:17, Howard Mearns <hmea...@hotmail.com> wrote: > Does removing the y axis mean that axis 1 is now the z axis?
Others have explained what to do, but here is a small explanation of why. When LinuxCNC was first written there was an assumption made that an "X" in the G-code would always drive motor-0, "Y" would drive motor-1 and so on. The G-code axis words are (in this fixed sequence) X-0, Y-1, Z-2, A-3, B-4, C-5, U-6, V-7, W-8. Internally the motion module creates enough axis-data for as many axes as are specified in the HAL file line that loads the motion controller. If you look in the HAL file you will probably see a line like this: loadrt [EMCMOT]EMCMOT ... num_joints=[TRAJ]AXES That loads the motion controller specified in the INI file [EMCMOT] section and tells it to handle [TRAJ]AXES axes. What this means in practice is that [TRAJ]AXES isn't actually the count of axes needed, it is the index of the highest axis in use. You could have a single-axis machine using only W and that would need a 9-axis config. There is a development branch of LinuxCNC which removes some (or perhaps all) of these assumptions. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
