Ian W. Wright pravi: > Hi, > > I'm just in the process of adding home/limit switches to my > new little mill - didn't bother on the last one but I keep > running the Z-axis up to the top stop so I thought I'd > better add them. However, each time I start up EMC2 and hit > Home for the Z-axis, it ends up at a different reading. i.e. > EMC2 doesn't seem to be consistent in how it starts and the > Homing procedure doesn't reset the home position. For > example - I have set the ini file to home to 0.00 and then > to back off to -2.00 (it is +2.0 in the ini file..). I just > closed down EMC2 and restarted it and hit Home for the > Z-axis. The machine did its thing and settled where it > should physically - just off the switch - but the AXIS > readout said -4.000. I repeated the shutting down and > restarting and this time it settled in the same physical > position reading -3.500. Another time it read 5.220 - in > each case, all I have done is start EMC2, jog the Z-axis > away from ) a bit and hit the Home button in AXIS so I > haven't affected any of the other functions at all. Is there > no way that the display can be automatically made to reset > itself to the ini file setting ( in this case -2.000) when > an axis is homed or do I have to manually 'touch off' each > time. Surely that can't be right..... > Thanks, > > Ian > ______________________ > Ian W. Wright > Sheffield UK > Try to reset Fixture offsets (reset touch off's)
Is the error additive or just random around -3? (ie if just rehoming Z multiple times are error increase or is somewhere around same reading?) Slavko. ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
