my guess would be that you some sort of offset (g54 or g92 or ....) so read up :)
http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?CoordinateSystems sam On 5/11/2011 11:27 AM, Andy Howell wrote: > I'm setting up an X2 mill for the first time, starting with getting the Z > axis limit / > home switch working correctly. I am using the limit switch as both home and > limit. > > It seems to be working correctly. However, after homing, Axis shows the > 'Relative > position' as 1.000. and the 'Machine position', as 0.000. Shouldn't they both > be zero? > > Z axis config in my-mill.ini: > > [AXIS_2] > TYPE = LINEAR > HOME = 0.0 > MAX_VELOCITY = 1.0 > MAX_ACCELERATION = 30.0 > STEPGEN_MAXACCEL = 37.5 > SCALE = -20000.0 > FERROR = 0.05 > MIN_FERROR = 0.01 > # Min will be -10.x later. Set to -1.525 to make testing faster. > MIN_LIMIT = -1.525 > MAX_LIMIT = 0.10 > HOME_OFFSET = 0.50000 > HOME_SEARCH_VEL = 0.050000 > HOME_LATCH_VEL = 0.025000 > HOME_IGNORE_LIMITS = YES > > Z axis settings in my-mill.hal: > > setp stepgen.2.position-scale [AXIS_2]SCALE > setp stepgen.2.steplen 1 > setp stepgen.2.stepspace 0 > setp stepgen.2.dirhold 5548 > setp stepgen.2.dirsetup 5548 > setp stepgen.2.maxaccel [AXIS_2]STEPGEN_MAXACCEL > net zpos-cmd axis.2.motor-pos-cmd => stepgen.2.position-cmd > net zpos-fb stepgen.2.position-fb => axis.2.motor-pos-fb > net zstep<= stepgen.2.step > net zdir<= stepgen.2.dir > net zenable axis.2.amp-enable-out => stepgen.2.enable > net max-home-z => axis.2.home-sw-in > net max-home-z => axis.2.pos-lim-sw-in > > Thanks, > > Andy > > > > ------------------------------------------------------------------------------ > Achieve unprecedented app performance and reliability > What every C/C++ and Fortran developer should know. > Learn how Intel has extended the reach of its next-generation tools > to help boost performance applications - inlcuding clusters. > http://p.sf.net/sfu/intel-dev2devmay > > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Achieve unprecedented app performance and reliability What every C/C++ and Fortran developer should know. Learn how Intel has extended the reach of its next-generation tools to help boost performance applications - inlcuding clusters. http://p.sf.net/sfu/intel-dev2devmay _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
