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stepper: Use a sane default for homing_positive_dir

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Use the endstop position to determine a sane default for
homing_positive_dir.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2017-07-24 14:12:17 -04:00
parent 143b7cccf4
commit 981c53682f
9 changed files with 46 additions and 42 deletions
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28
config/example.cfg
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@@ -35,15 +35,27 @@ step_distance: .0225
endstop_pin: ^ar3
# Endstop switch detection pin. This parameter must be provided for
# the X, Y, and Z steppers on cartesian style printers.
#position_min: 0
# Minimum valid distance (in mm) the user may command the stepper to
# move to. The default is 0mm.
position_endstop: 0
# Location of the endstop (in mm). This parameter must be provided
# for the X, Y, and Z steppers on cartesian style printers.
position_max: 200
# Maximum valid distance (in mm) the user may command the stepper to
# move to. This parameter must be provided for the X, Y, and Z
# steppers on cartesian style printers.
#homing_speed: 5.0
# Maximum velocity (in mm/s) of the stepper when homing. The default
# is 5mm/s.
#homing_retract_dist: 5.0
# Distance to backoff (in mm) before homing a second time during
# homing. The default is 5mm.
#homing_positive_dir: False
# If true, homes in a positive direction (away from zero). The
# default is False.
#homing_positive_dir:
# If true, homing will cause the stepper to move in a positive
# direction (away from zero); if false, home towards zero. The
# default is true if position_endstop is near position_max and false
# if near position_min.
#homing_stepper_phases: 0
# One may optionally set this to the number of phases of the stepper
# motor driver (which is the number of micro-steps multiplied by
@@ -64,16 +76,6 @@ endstop_pin: ^ar3
# reset. If this is not set, but homing_stepper_phases is set, then
# the stepper phase will be detected on the first home and that
# phase will be used on all subsequent homes.
#position_min: 0
# Minimum valid distance (in mm) the user may command the stepper to
# move to. The default is 0mm.
position_endstop: 0
# Location of the endstop (in mm). This parameter must be provided
# for the X, Y, and Z steppers on cartesian style printers.
position_max: 200
# Maximum valid distance (in mm) the user may command the stepper to
# move to. This parameter must be provided for the X, Y, and Z
# steppers on cartesian style printers.
# The stepper_y section is used to describe the stepper controlling
# the Y axis in a cartesian robot. It has the same settings as the