Having mounted & wired the switches, the next step involves defining the homing sequence & configuration for each axis. All this goes in Sherline.ini and is adapted from the doc there.
The travel limits are somewhat empirical and I think the Y axis will require some adjustment due to the tooling plate switch extender gadget.
The HOME_SEARCH_VEL values may be a bit too high, given the rather lethargic 5.0 in/sec^2 acceleration I’m using for X & Y, with just 3.0 for Z. I’ve heard the occasional thwack as the switch trips, so maybe 20 mils of overtravel isn’t quite enough.
For the X-Axis:
[AXIS_0] ... snippage ... MIN_LIMIT = -1.0 MAX_LIMIT = 9.5 HOME_IS_SHARED = 1 HOME_SEQUENCE = 2 HOME_SEARCH_VEL = 4.75 HOME_LATCH_VEL = 0.016 HOME_FINAL_VEL = 0.25 HOME_OFFSET = 9.1 HOME = 4.5
For the Y-axis:
[AXIS_1] ... snippage ... MIN_LIMIT = -0.5 MAX_LIMIT = 4.95 HOME_IS_SHARED = 1 HOME_SEQUENCE = 1 HOME_SEARCH_VEL = -4.75 HOME_LATCH_VEL = -0.016 HOME_FINAL_VEL = 0.25 HOME_OFFSET = 0.0 HOME = 4.5
For the Z-axis:
[AXIS_2] MIN_LIMIT = -0.1 MAX_LIMIT = 6.9 HOME_IS_SHARED = 1 HOME_SEQUENCE = 0 HOME_SEARCH_VEL = 0.333 HOME_LATCH_VEL = 0.016 HOME_FINAL_VEL = 0.25 HOME_OFFSET = 6.9 HOME = 6.5
The A axis doesn’t get a home switch because I can’t imagine needing one for a rotary table:
[AXIS_3] ... snippage ... MIN_LIMIT = -9999.0 MAX_LIMIT = 9999.0 HOME_SEARCH_VEL = 0 HOME_LATCH_VEL = 0 HOME = 0.0
The Smell of Molten Projects in the Morning 