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| author | fess <fess@fess.org> | 2019-04-06 18:46:16 +0000 |
|---|---|---|
| committer | KevinOConnor <kevin@koconnor.net> | 2019-05-01 14:35:24 -0400 |
| commit | 0a9e3b744c51304a5366cbbc8903721497a19f24 (patch) | |
| tree | a0a38771cd0c0f0c0c476993871ad36446a45efa | |
| parent | af78d854acb6dcc83007e2380c51fdeb10f0be91 (diff) | |
| download | kutter-0a9e3b744c51304a5366cbbc8903721497a19f24.tar.gz kutter-0a9e3b744c51304a5366cbbc8903721497a19f24.tar.xz kutter-0a9e3b744c51304a5366cbbc8903721497a19f24.zip | |
quad_gantry_level: Limit maximum adjustment
safety feature that prevents quad_gantry_level from trying to do a
correction that might break things - if your probe fires early for
whatever reason and tries to do an 8mm correction in one corner instead
we abort if a correction is over a configurable limit by default 4mm
configurable via `max_adjust` parameter in the config
Signed-off-by: John "Fess" Fessenden <fess@fess.org>
| -rw-r--r-- | config/example-extras.cfg | 3 | ||||
| -rw-r--r-- | klippy/extras/quad_gantry_level.py | 10 |
2 files changed, 13 insertions, 0 deletions
diff --git a/config/example-extras.cfg b/config/example-extras.cfg index f4033e5c..08c7fc42 100644 --- a/config/example-extras.cfg +++ b/config/example-extras.cfg @@ -371,6 +371,9 @@ #horizontal_move_z: 5 # The height (in mm) that the head should be commanded to move to # just prior to starting a probe operation. The default is 5 +#max_adjust: 4 +# Saftey limit if an ajustment greater than this value is requested +# quad_gantry_level will abort. #samples: 1 # Number of probe samples per point. The defaut is 1 #samples_result: average diff --git a/klippy/extras/quad_gantry_level.py b/klippy/extras/quad_gantry_level.py index 7a85dec3..32dd3b7d 100644 --- a/klippy/extras/quad_gantry_level.py +++ b/klippy/extras/quad_gantry_level.py @@ -9,6 +9,7 @@ import probe class QuadGantryLevel: def __init__(self, config): self.printer = config.get_printer() + self.max_adjust = config.getfloat("max_adjust", 4, above=0) self.horizontal_move_z = config.getfloat("horizontal_move_z", 5.0) self.printer.register_event_handler("klippy:connect", self.handle_connect) @@ -83,6 +84,15 @@ class QuadGantryLevel: z_adjust = [] for z in z_height: z_adjust.append(z_ave - z) + + adjust_max = max(z_adjust) + if adjust_max > self.max_adjust: + self.gcode.respond_error( + "Aborting quad_gantry_level " + + "required adjustment %0.6f " % ( adjust_max ) + + "is greater than max_adjust %0.6f" % (self.max_adjust)) + return + try: self.adjust_steppers(z_adjust) except: |