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klippy.log klippy.zip (146.4 KB)
Describe your issue:
I cannot get my bed mesh working fine using bltouch. Testing it via an test object fails and also a manual test with a paper fails. The bltouch seems fine in general as creating mostly the same mesh after every probing but perhaps I doing something wring with z-tilt.
What is the standard workflow creating a mesh with z-tilt and homing?
Multiple Z stepper tilt adjustment. This feature enables independent adjustment of multiple z steppers (see the “stepper_z1” section) to adjust for tilt. If this section is present then a Z_TILT_ADJUST extended G-Code command becomes available.
[z_tilt]
#z_positions:
# A list of X, Y coordinates (one per line; subsequent lines
# indented) describing the location of each bed "pivot point". The
# "pivot point" is the point where the bed attaches to the given Z
# stepper. It is described using nozzle coordinates (the X, Y position
# of the nozzle if it could move directly above the point). The
# first entry corresponds to stepper_z, the second to stepper_z1,
# the third to stepper_z2, etc. This parameter must be provided.
#points:
# A list of X, Y coordinates (one per line; subsequent lines
# indented) that should be probed during a Z_TILT_ADJUST command.
# Specify coordinates of the nozzle and be sure the probe is above
# the bed at the given nozzle coordinates. This parameter must be
# provided.
#speed: 50
# The speed (in mm/s) of non-probing moves during the calibration.
# The default is 50.
#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.
#retries: 0
# Number of times to retry if the probed points aren't within
# tolerance.
#retry_tolerance: 0
# If retries are enabled then retry if largest and smallest probed
# points differ more than retry_tolerance. Note the smallest unit of
# change here would be a single step. However if you are probing
# more points than steppers then you will likely have a fixed
# minimum value for the range of probed points which you can learn
# by observing command output.
Home Z → Z tilt (it invalidates the homing Z0, technically) → Create Bed Mesh.
The bed mesh would account for any changes that Z tilt added.
If you try to reuse the previous bed mesh, generally, you want to do homing second Z homing after Z tilt, to get the same reference point.