mirror of https://github.com/Desuuuu/klipper.git
93 lines
4.1 KiB
Python
93 lines
4.1 KiB
Python
# Helper script to adjust bed screws tilt using Z probe
|
|
#
|
|
# Copyright (C) 2019 Rui Caridade <rui.mcbc@gmail.com>
|
|
#
|
|
# This file may be distributed under the terms of the GNU GPLv3 license.
|
|
import math
|
|
from . import probe
|
|
|
|
def parse_coord(config, param):
|
|
pair = config.get(param).strip().split(',', 1)
|
|
try:
|
|
return (float(pair[0]), float(pair[1]))
|
|
except:
|
|
raise config.error("%s:%s needs to be an x,y coordinate" % (
|
|
config.get_name(), param))
|
|
|
|
class ScrewsTiltAdjust:
|
|
def __init__(self, config):
|
|
self.config = config
|
|
self.printer = config.get_printer()
|
|
self.screws = []
|
|
# Read config
|
|
for i in range(99):
|
|
prefix = "screw%d" % (i + 1,)
|
|
if config.get(prefix, None) is None:
|
|
break
|
|
screw_coord = parse_coord(config, prefix)
|
|
screw_name = "screw at %.3f,%.3f" % screw_coord
|
|
screw_name = config.get(prefix + "_name", screw_name)
|
|
self.screws.append((screw_coord, screw_name))
|
|
if len(self.screws) < 3:
|
|
raise config.error("screws_tilt_adjust: Must have "
|
|
"at least three screws")
|
|
self.threads = {'CW-M3': 0, 'CCW-M3': 1, 'CW-M4': 2, 'CCW-M4': 3,
|
|
'CW-M5': 4, 'CCW-M5': 5}
|
|
self.thread = config.getchoice('screw_thread', self.threads,
|
|
default='CW-M3')
|
|
# Initialize ProbePointsHelper
|
|
points = [coord for coord, name in self.screws]
|
|
self.probe_helper = probe.ProbePointsHelper(self.config,
|
|
self.probe_finalize,
|
|
default_points=points)
|
|
self.probe_helper.minimum_points(3)
|
|
# Register command
|
|
self.gcode = self.printer.lookup_object('gcode')
|
|
self.gcode.register_command("SCREWS_TILT_CALCULATE",
|
|
self.cmd_SCREWS_TILT_CALCULATE,
|
|
desc=self.cmd_SCREWS_TILT_CALCULATE_help)
|
|
cmd_SCREWS_TILT_CALCULATE_help = "Tool to help adjust bed leveling " \
|
|
"screws by calculating the number " \
|
|
"of turns to level it."
|
|
|
|
def cmd_SCREWS_TILT_CALCULATE(self, gcmd):
|
|
self.probe_helper.start_probe(gcmd)
|
|
|
|
def probe_finalize(self, offsets, positions):
|
|
# Factors used for CW-M3, CCW-M3, CW-M4, CCW-M4, CW-M5 and CCW-M5
|
|
threads_factor = {0: 0.5, 1: 0.5, 2: 0.7, 3: 0.7, 4: 0.8, 5: 0.8}
|
|
# Process the read Z values and
|
|
for i, screw in enumerate(self.screws):
|
|
if i == 0:
|
|
# First screw is the base position used for comparison
|
|
z_base = positions[i][2]
|
|
coord_base, name_base = screw
|
|
# Show the results
|
|
self.gcode.respond_info("%s (Base): X %.1f, Y %.1f, Z %.5f" %
|
|
(name_base, coord_base[0],
|
|
coord_base[1], z_base))
|
|
else:
|
|
# Calculate how knob must me adjusted for other positions
|
|
z = positions[i][2]
|
|
coord, name = screw
|
|
diff = z_base - z
|
|
if abs(diff) < 0.001:
|
|
adjust = 0
|
|
else:
|
|
adjust = diff / threads_factor.get(self.thread, 0.5)
|
|
if (self.thread & 1) == 1:
|
|
sign = "CW" if adjust < 0 else "CCW"
|
|
else:
|
|
sign = "CCW" if adjust < 0 else "CW"
|
|
full_turns = math.trunc(adjust)
|
|
decimal_part = adjust - full_turns
|
|
minutes = round(decimal_part * 60, 0)
|
|
# Show the results
|
|
self.gcode.respond_info("%s : X %.1f, Y %.1f, Z %.5f : "
|
|
"Adjust -> %s %02d:%02d" %
|
|
(name, coord[0], coord[1], z, sign,
|
|
abs(full_turns), abs(minutes)))
|
|
|
|
def load_config(config):
|
|
return ScrewsTiltAdjust(config)
|