97 lines
3.9 KiB
Python
97 lines
3.9 KiB
Python
#!/usr/bin/env python3
|
|
# Copyright (C) 2013-2016 Florian Festi
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# 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 General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
from boxes import *
|
|
|
|
class Gears(Boxes):
|
|
"""Gears"""
|
|
|
|
ui_group = "Part"
|
|
|
|
def __init__(self):
|
|
Boxes.__init__(self)
|
|
self.argparser.add_argument(
|
|
"--teeth1", action="store", type=int, default=12,
|
|
help="number of teeth")
|
|
self.argparser.add_argument(
|
|
"--shaft1", action="store", type=float, default=6.,
|
|
help="diameter of the shaft 1")
|
|
self.argparser.add_argument(
|
|
"--dpercentage1", action="store", type=float, default=75,
|
|
help="percent of the D section of shaft 1 (100 for round shaft)")
|
|
|
|
self.argparser.add_argument(
|
|
"--teeth2", action="store", type=int, default=32,
|
|
help="number of teeth in the other size of gears")
|
|
self.argparser.add_argument(
|
|
"--shaft2", action="store", type=float, default=0.0,
|
|
help="diameter of the shaft2 (zero for same as shaft 1)")
|
|
self.argparser.add_argument(
|
|
"--dpercentage2", action="store", type=float, default=0,
|
|
help="percent of the D section of shaft 1 (0 for same as shaft 1)")
|
|
|
|
self.argparser.add_argument(
|
|
"--modulus", action="store", type=float, default=5,
|
|
help="width of teeth in mm")
|
|
self.argparser.add_argument(
|
|
"--pressure_angle", action="store", type=float, default=20,
|
|
help="angle of the teeth touching (in degrees)")
|
|
self.argparser.add_argument(
|
|
"--profile_shift", action="store", type=float, default=20,
|
|
help="in precent of the modulus")
|
|
|
|
def render(self):
|
|
# adjust to the variables you want in the local scope
|
|
t = self.thickness
|
|
|
|
self.teeth1 = max(2, self.teeth1)
|
|
self.teeth2 = max(2, self.teeth2)
|
|
|
|
if not self.shaft2:
|
|
self.shaft2 = self.shaft1
|
|
if not self.dpercentage2:
|
|
self.dpercentage2 = self.dpercentage1
|
|
|
|
self.gears(teeth=self.teeth2, dimension=self.modulus,
|
|
angle=self.pressure_angle, profile_shift=self.profile_shift,
|
|
callback=lambda:self.dHole(0, 0, d=self.shaft2,
|
|
rel_w=self.dpercentage2/100.),
|
|
move="up")
|
|
r2, d2, d2 = self.gears.sizes(
|
|
teeth=self.teeth2, dimension=self.modulus,
|
|
angle=self.pressure_angle, profile_shift=self.profile_shift)
|
|
|
|
self.gears(teeth=self.teeth1, dimension=self.modulus,
|
|
angle=self.pressure_angle, profile_shift=self.profile_shift,
|
|
callback=lambda:self.dHole(0, 0, d=self.shaft1,
|
|
rel_w=self.dpercentage1/100.),
|
|
move="up")
|
|
r1, d1, d1 = self.gears.sizes(
|
|
teeth=self.teeth1, dimension=self.modulus,
|
|
angle=self.pressure_angle, profile_shift=self.profile_shift)
|
|
r = max(self.shaft1, self.shaft2)/2
|
|
self.hole(t+r, t+r, self.shaft1/2)
|
|
self.hole(t+r+r1+r2, t+r, self.shaft2/2)
|
|
self.moveTo(0, 2*r+t)
|
|
|
|
self.text("""Pitch radius 1: %.1fmm
|
|
Outer diameter 1: %.1fmm
|
|
Pitch radius 2: %.1fmm
|
|
Outer diameter 2: %.1fmm
|
|
Axis distance: %.1fmm
|
|
""" % (r1, d1, r2, d2, r1+r2), align="bottom left")
|
|
|