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| author | Kevin O'Connor <kevin@koconnor.net> | 2017-07-24 14:12:17 -0400 |
|---|---|---|
| committer | Kevin O'Connor <kevin@koconnor.net> | 2017-07-24 14:31:46 -0400 |
| commit | 981c53682f58c49f7c140bad945e54d7d61d2755 (patch) | |
| tree | 42306830ad35e4dc78438998af7a35460e621cb1 /klippy/stepper.py | |
| parent | 143b7cccf4bb170fa6a78d88da9d061487288792 (diff) | |
| download | kutter-981c53682f58c49f7c140bad945e54d7d61d2755.tar.gz kutter-981c53682f58c49f7c140bad945e54d7d61d2755.tar.xz kutter-981c53682f58c49f7c140bad945e54d7d61d2755.zip | |
stepper: Use a sane default for homing_positive_dir
Use the endstop position to determine a sane default for
homing_positive_dir.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Diffstat (limited to 'klippy/stepper.py')
| -rw-r--r-- | klippy/stepper.py | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/klippy/stepper.py b/klippy/stepper.py index 61900a20..1b2841f4 100644 --- a/klippy/stepper.py +++ b/klippy/stepper.py @@ -57,8 +57,17 @@ class PrinterHomingStepper(PrinterStepper): self.position_endstop = config.getfloat('position_endstop') self.homing_speed = config.getfloat('homing_speed', 5.0, above=0.) - self.homing_positive_dir = config.getboolean( - 'homing_positive_dir', False) + self.homing_positive_dir = config.getboolean('homing_positive_dir', None) + if self.homing_positive_dir is None: + axis_len = self.position_max - self.position_min + if self.position_endstop <= self.position_min + axis_len / 4.: + self.homing_positive_dir = False + elif self.position_endstop >= self.position_max - axis_len / 4.: + self.homing_positive_dir = True + else: + raise config.error( + "Unable to infer homing_positive_dir in section '%s'" % ( + config.section,)) self.homing_retract_dist = config.getfloat( 'homing_retract_dist', 5., above=0.) self.homing_stepper_phases = config.getint( |