diff options
| -rw-r--r-- | config/example-extras.cfg | 4 | ||||
| -rw-r--r-- | klippy/extras/bed_mesh.py | 19 |
2 files changed, 21 insertions, 2 deletions
diff --git a/config/example-extras.cfg b/config/example-extras.cfg index 14a02d08..d002c922 100644 --- a/config/example-extras.cfg +++ b/config/example-extras.cfg @@ -226,6 +226,10 @@ # may be applied to change the amount of slope interpolated. # Larger numbers will increase the amount of slope, which # results in more curvature in the mesh. Default is .2. +#relative_reference_index: +# A point index in the mesh to reference all z values to. Enabling +# this parameter produces a mesh relative to the probed z position +# at the provided index. # Tool to help adjust bed leveling screws. One may define a diff --git a/klippy/extras/bed_mesh.py b/klippy/extras/bed_mesh.py index 506d5aa1..ec2b88ad 100644 --- a/klippy/extras/bed_mesh.py +++ b/klippy/extras/bed_mesh.py @@ -186,6 +186,7 @@ class BedMeshCalibrate: self.printer = config.get_printer() self.name = config.get_name() self.radius = None + self.relative_reference_index = None self.bedmesh = bedmesh self.probed_z_table = None self.build_map = False @@ -267,8 +268,17 @@ class BedMeshCalibrate: points.append((pos_x, pos_y)) pos_y += y_dist logging.info('bed_mesh: generated points') - for p in points: - logging.info("(%.1f, %.1f)" % (p[0], p[1])) + for i, p in enumerate(points): + logging.info("%d: (%.1f, %.1f)" % (i, p[0], p[1])) + rref_index = config.get('relative_reference_index', None) + if rref_index is not None: + rref_index = int(rref_index) + if rref_index < 0 or rref_index >= len(points): + raise config.error("bed_mesh: relative reference index %d " + "is out of bounds" % (rref_index)) + logging.info("bed_mesh: relative_reference_index %d is (%.2f, %.2f)" + % (rref_index, points[rref_index][0], points[rref_index][1])) + self.relative_reference_index = rref_index return points def _init_probe_params(self, config, points): self.probe_params['min_x'] = min(points, key=lambda p: p[0])[0] @@ -411,6 +421,11 @@ class BedMeshCalibrate: x_cnt = self.probe_params['x_count'] y_cnt = self.probe_params['y_count'] + if self.relative_reference_index is not None: + # zero out probe z offset and + # set offset relative to reference index + z_offset = positions[self.relative_reference_index][2] + self.probed_z_table = [] row = [] prev_pos = positions[0] |