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homing: Ability to set retract speed between homing moves (#2487) 

On the retract move between homing moves, use a different speed (typically a faster one).

Signed-off-by: Mike Stiemke <fandjango@gmx.de>
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FanDjango 2020-02-12 16:09:39 +01:00 committed by GitHub
parent cb042e749d
commit 4d9a36b34f
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3 changed files with 11 additions and 5 deletions
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4
config/example.cfg
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@ -55,6 +55,10 @@ position_max: 200
# Distance to backoff (in mm) before homing a second time during
# homing. Set this to zero to disable the second home. The default
# is 5mm.
#homing_retract_speed:
# Speed to use on the retract move after homing in case this should
# be different from the homing speed, which is the default for this
# parameter
#second_homing_speed:
# Velocity (in mm/s) of the stepper when performing the second home.
# The default is homing_speed/2.

2
klippy/homing.py
View File

@ -130,7 +130,7 @@ class Homing:
retract_r = min(1., hi.retract_dist / move_d)
retractpos = [mp - ad * retract_r
for mp, ad in zip(movepos, axes_d)]
self.toolhead.move(retractpos, hi.speed)
self.toolhead.move(retractpos, hi.retract_speed)
# Home again
forcepos = [rp - ad * retract_r
for rp, ad in zip(retractpos, axes_d)]

10
klippy/stepper.py
View File

@ -236,6 +236,8 @@ class PrinterRail:
self.homing_speed = config.getfloat('homing_speed', 5.0, above=0.)
self.second_homing_speed = config.getfloat(
'second_homing_speed', self.homing_speed/2., above=0.)
self.homing_retract_speed = config.getfloat(
'homing_retract_speed', self.homing_speed, above=0.)
self.homing_retract_dist = config.getfloat(
'homing_retract_dist', 5., minval=0.)
self.homing_positive_dir = config.getboolean(
@ -254,11 +256,11 @@ class PrinterRail:
return self.position_min, self.position_max
def get_homing_info(self):
homing_info = collections.namedtuple('homing_info', [
'speed', 'position_endstop', 'retract_dist', 'positive_dir',
'second_homing_speed'])(
'speed', 'position_endstop', 'retract_speed', 'retract_dist',
'positive_dir', 'second_homing_speed'])(
self.homing_speed, self.position_endstop,
self.homing_retract_dist, self.homing_positive_dir,
self.second_homing_speed)
self.homing_retract_speed, self.homing_retract_dist,
self.homing_positive_dir, self.second_homing_speed)
return homing_info
def get_steppers(self):
return list(self.steppers)