# 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 *
[docs]
class RollHolder(Boxes):
"""Holder for kitchen rolls or other rolls"""
description = """Needs a dowel or pipe as axle."""
ui_group = "WallMounted"
def __init__(self) -> None:
Boxes.__init__(self)
self.addSettingsArgs(edges.FingerJointSettings)
self.argparser.add_argument(
"--width", action="store", type=float, default=275,
help="length of the axle in mm")
self.argparser.add_argument(
"--diameter", action="store", type=float, default=120,
help="maximum diameter of the roll in mm (choose generously)")
self.argparser.add_argument(
"--height", action="store", type=float, default=80,
help="height of mounting plate in mm")
self.argparser.add_argument(
"--axle", action="store", type=float, default=25,
help="diameter of the axle in mm including play")
self.argparser.add_argument(
"--screw_holes", action="store", type=float, default=4,
help="diameter of mounting holes in mm")
self.argparser.add_argument(
"--one_piece", action="store", type=boolarg, default=True,
help="have a continuous back plate instead of two separate holders")
def side(self, move=None):
d = self.diameter
a = self.axle
h = self.height
t = self.thickness
tw, th = h, (d + a) / 2 + 4 * t
if self.move(tw, th, move, True):
return
self.moveTo(0, t)
self.edges["f"](h)
self.fingerHolesAt(-(a/2+3*t), self.burn, d/2, 90)
self.polyline(0, 90, d/2, (90, a/2 + 3*t))
r = a/2 + 3*t
a = math.atan2(float(d/2), (h-a-6*t))
alpha = math.degrees(a)
self.corner(alpha, r)
self.edge(((h-2*r)**2+(d/2)**2)**0.5)
self.corner(90-alpha, r)
self.corner(90)
self.move(tw, th, move)
def backCB(self):
t = self.thickness
a = self.axle
h = self.height
w = self.width
plate = w + 2*t + h/2 if self.one_piece else h/2 + t
self.fingerHolesAt(h/4+t/2-3*t, 0, h, 90)
self.fingerHolesAt(h/4-3*t, h-3*t-a/2, h/4, 180)
if self.one_piece:
self.fingerHolesAt(h/4+t/2+t-3*t+w, 0, h, 90)
self.fingerHolesAt(h/4+2*t-3*t+w, h-3*t-a/2, h/4, 0)
for x in (0, plate-6*t):
for y in (3*t, h-3*t):
self.hole(x, y, d=self.screw_holes)
def rings(self):
a = self.axle
r = a/2
t = self.thickness
self.moveTo(0, a+1.5*t, -90)
for i in range(2):
self.polyline(r-1.5*t, (180, r+3*t), 0, (180, 1.5*t), 0,
(-180, r), r-1.5*t, (180, 1.5*t))
self.moveTo(a-t, a+12*t, 180)
def render(self):
t = self.thickness
w = self.width
d = self.diameter
a = self.axle
h = self.height
self.height = h = max(h, a+10*t)
self.side(move="right")
self.side(move="right")
self.rectangularTriangle(h/4, d/2, "ffe", num=2, r=3*t, move="right")
if self.one_piece:
self.roundedPlate(w+h/2+2*t, h, edge="e", r=3*t,
extend_corners=False,
callback=[self.backCB], move="right")
else:
self.roundedPlate(h/2+t, h, edge="e", r=3*t,
extend_corners=False,
callback=[self.backCB], move="right")
self.roundedPlate(h/2+t, h, edge="e", r=3*t,
extend_corners=False,
callback=[self.backCB], move="right mirror")
self.rings()
