File size: 3,951 Bytes
985c397 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 | # SPDX-License-Identifier: LGPL-2.1-or-later
# ***************************************************************************
# * Copyright (c) 2021 sliptonic <shopinthewoods@gmail.com> *
# * *
# * This program is free software; you can redistribute it and/or modify *
# * it under the terms of the GNU Lesser General Public License (LGPL) *
# * as published by the Free Software Foundation; either version 2 of *
# * the License, or (at your option) any later version. *
# * for detail see the LICENCE text file. *
# * *
# * This program is distributed in the hope that it will be useful, *
# * but WITHOUT ANY WARRANTY; without even the implied warranty of *
# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
# * GNU Library General Public License for more details. *
# * *
# * You should have received a copy of the GNU Library General Public *
# * License along with this program; if not, write to the Free Software *
# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
# * USA *
# * *
# ***************************************************************************
import Path
from enum import Enum
__title__ = "Toolchange toolpath Generator"
__author__ = "sliptonic (Brad Collette)"
__url__ = "https://www.freecad.org"
__doc__ = "Generates the rotation toolpath"
if False:
Path.Log.setLevel(Path.Log.Level.DEBUG, Path.Log.thisModule())
Path.Log.trackModule(Path.Log.thisModule())
else:
Path.Log.setLevel(Path.Log.Level.INFO, Path.Log.thisModule())
class SpindleDirection(Enum):
OFF = "OFF"
CW = "M3"
CCW = "M4"
def generate(toolnumber, toollabel, spindlespeed=0, spindledirection=SpindleDirection.OFF):
"""
Generates Gcode for a simple toolchange.
"""
Path.Log.track(
f"toolnumber:{toolnumber} toollabel: {toollabel} spindlespeed:{spindlespeed} spindledirection: {spindledirection}"
)
if spindledirection is not SpindleDirection.OFF and spindlespeed == 0:
spindledirection = SpindleDirection.OFF
# raise ValueError("Turning on spindle with zero speed is invalid")
if spindlespeed < 0:
raise ValueError("Spindle speed must be a positive value")
commands = []
commands.append(Path.Command(f"({toollabel})"))
commands.append(Path.Command("M6", {"T": int(toolnumber)}))
if spindledirection is SpindleDirection.OFF:
return commands
else:
commands.append(Path.Command(spindledirection.value, {"S": spindlespeed}))
Path.Log.track(commands)
return commands
def generateSubstitute(newTC, oldTC=None):
"""
The specific commands to emit, depend on the state of the machine.
For example, the toolnumber may not change, only the spindle speed.
This routine will generate a list of commands to substitute for a TC
object to be handed to the postprocessor.
It will contain only the commands needed
"""
if oldTC is None:
return newTC.Path.Commands
if newTC.ToolNumber != oldTC.ToolNumber: # Full toolchange
return newTC.Path.Commands
if (newTC.SpindleSpeed != oldTC.SpindleSpeed) or (newTC.SpindleDir != oldTC.SpindleDir):
if newTC.SpindleDir == "Forward":
sd = SpindleDirection.CW
elif newTC.SpindleDir == "Reverse":
sd = SpindleDirection.CCW
else:
sd = SpindleDirection.OFF
return [Path.Command(sd.value, {"S": newTC.SpindleSpeed})]
return []
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