sudden stops in XY zeroing routine cause imprecision

[Madouc]

currently the XYzero routine causes the stopbot to execute a sudden stop as soon as the endstop is reached.

however, if the physical endstop is not located right behind the sensor, there should be space to come to a ramped stop.

the ON INPUT command allows for a ramped stop by using the second parameter ( &TrgtHIT in the xyzero routine)
This should however only be used on the big-moves as you want to have a precise (repeatable) stopping point with the small moves.

Ramp-down should be adapted to stay within the end-stop detection.
Or after a big-move, the detection-interrupt could be adapted to only trigger when the carriage moves off the endstop.
(this would allow for moving on to the endstop without triggering a stop)

[JensDyvik]

Great. Thank you for good input. I will test implement a ramped down big move. On our 96-48 alphas we have only about 10mm between the proximity switch trigger point and physical endstop to allow maximum work area and space for probing the bit on a probing plate. I am curious to how much travel we will need for a decent ramp down from high speed jogging. Will report back.