Category: General LinuxCNC Questions
Well reading the (correct, even) documentation hasn't helped.
Clearly, my expectations are wrong. I have an axis that goes from 0 to 12. I want to home at the "12" end. It's a "bed moves" mill, so the motions are all backwards from the POV of the config, which is clearly expecting a "spindle moves" mill.
Here's what I have. The SEARCH and LATCH phases work fine, both searching negative. But when the axis engages HOME_FINAL_VEL, it
also heads in the negative direction to find HOME. To be clear: HOME_SEARCH_VEL, HOME_LATCH_VEL, and HOME_FINAL_VEL are all moving the axis in the same, negative, direction.
With the INI as shown, it moves .5" before stopping. (I've replaced "HOME=12" with "HOME=.5" for testing, simply so the axis doesn't move so far in the wrong direction. I'm testing in the middle of the bed, simulating by activating the limit switch by hand.)
What do I need to do?
MIN_LIMIT = -0.001
MAX_LIMIT = 12.0
HOME_IS_SHARED = 1
#HOME = 12
HOME = .5
HOME_OFFSET = 0.1
HOME_SEARCH_VEL = .2
HOME_LATCH_VEL = 0.015
HOME_FINAL_VEL = .15
HOME_USE_INDEX = NO
HOME_IGNORE_LIMITS = YES
HOME_SEQUENCE = 2
