96 lines
3.1 KiB
Python
96 lines
3.1 KiB
Python
#!/usr/bin/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 *
|
|
from boxes import pulley
|
|
import math
|
|
|
|
|
|
class Pulley(Boxes):
|
|
"""Timing belt pulleys for different profiles"""
|
|
|
|
ui_group = "Part"
|
|
|
|
def __init__(self):
|
|
Boxes.__init__(self)
|
|
# remove cli params you do not need
|
|
self.buildArgParser(h=6.)
|
|
self.argparser.add_argument(
|
|
"--profile", action="store", type=str, default="GT2_2mm",
|
|
choices=pulley.Pulley.getProfiles(),
|
|
help="profile of the teeth/belt")
|
|
self.argparser.add_argument(
|
|
"--teeth", action="store", type=int, default=20,
|
|
help="number of teeth")
|
|
self.argparser.add_argument(
|
|
"--axle", action="store", type=float, default=5,
|
|
help="diameter of the axle")
|
|
self.argparser.add_argument(
|
|
"--insideout", action="store", type=BoolArg(), default=False,
|
|
help="create a ring gear with the belt being pushed against from within")
|
|
self.argparser.add_argument(
|
|
"--top", action="store", type=float, default=0,
|
|
help="overlap of top rim (zero for none)")
|
|
|
|
# Add non default cli params if needed (see argparse std lib)
|
|
# self.argparser.add_argument(
|
|
# "--XX", action="store", type=float, default=0.5,
|
|
# help="DESCRIPTION")
|
|
|
|
def disk(self, diameter, hole, callback=None, move=""):
|
|
w = diameter + 2 * self.spacing
|
|
|
|
if self.move(w, w, move, before=True):
|
|
return
|
|
|
|
self.ctx.save()
|
|
self.moveTo(w / 2, w / 2)
|
|
self.cc(callback, None, 0.0, 0.0)
|
|
|
|
if hole:
|
|
self.hole(0, 0, hole / 2.0)
|
|
|
|
self.moveTo(diameter / 2 + self.burn, 0, 90)
|
|
self.corner(360, diameter / 2)
|
|
self.ctx.restore()
|
|
self.move(w, w, move)
|
|
|
|
def render(self):
|
|
# adjust to the variables you want in the local scope
|
|
t = self.thickness
|
|
# Initialize canvas
|
|
self.open()
|
|
|
|
if self.top:
|
|
self.disk(
|
|
self.pulley.diameter(self.teeth, self.profile) + 2 * self.top,
|
|
self.axle, move="right")
|
|
|
|
for i in range(int(math.ceil(self.h / self.thickness))):
|
|
self.pulley(self.teeth, self.profile, insideout=self.insideout, r_axle=self.axle / 2.0, move="right")
|
|
|
|
self.close()
|
|
|
|
|
|
def main():
|
|
b = Pulley()
|
|
b.parseArgs()
|
|
b.render()
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|