134 lines
4.5 KiB
Python
134 lines
4.5 KiB
Python
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#!/usr/bin/env python3
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# Copyright (C) 2013-2016 Florian Festi
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from boxes import *
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class RollHolder(Boxes):
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"""Holder for kitchen rolls or other rolls"""
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description = """Needs a dowel or pipe as axle."""
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ui_group = "Misc"
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def __init__(self) -> None:
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Boxes.__init__(self)
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self.addSettingsArgs(edges.FingerJointSettings)
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self.argparser.add_argument(
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"--width", action="store", type=float, default=275,
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help="length of the axle in mm")
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self.argparser.add_argument(
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"--diameter", action="store", type=float, default=120,
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help="maximum diameter of the roll in mm (choose generously)")
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self.argparser.add_argument(
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"--height", action="store", type=float, default=80,
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help="height of mounting plate in mm")
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self.argparser.add_argument(
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"--axle", action="store", type=float, default=25,
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help="diameter of the axle in mm including play")
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self.argparser.add_argument(
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"--screw_holes", action="store", type=float, default=4,
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help="diameter of mounting holes in mm")
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self.argparser.add_argument(
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"--one_piece", action="store", type=boolarg, default=True,
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help="have a continuous back plate instead of two separate holders")
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def side(self, move=None):
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d = self.diameter
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a = self.axle
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h = self.height
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t = self.thickness
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tw, th = h, (d + a) / 2 + 4 * t
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if self.move(tw, th, move, True):
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return
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self.moveTo(0, t)
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self.edges["f"](h)
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self.fingerHolesAt(-(a/2+3*t), self.burn, d/2, 90)
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self.polyline(0, 90, d/2, (90, a/2 + 3*t))
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r = a/2 + 3*t
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a = math.atan2(float(d/2), (h-a-6*t))
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alpha = math.degrees(a)
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self.corner(alpha, r)
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self.edge(((h-2*r)**2+(d/2)**2)**0.5)
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self.corner(90-alpha, r)
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self.corner(90)
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self.move(tw, th, move)
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def backCB(self):
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t = self.thickness
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a = self.axle
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h = self.height
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w = self.width
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plate = w + 2*t + h/2 if self.one_piece else h/2 + t
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self.fingerHolesAt(h/4+t/2-3*t, 0, h, 90)
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self.fingerHolesAt(h/4-3*t, h-3*t-a/2, h/4, 180)
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if self.one_piece:
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self.fingerHolesAt(h/4+t/2+t-3*t+w, 0, h, 90)
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self.fingerHolesAt(h/4+2*t-3*t+w, h-3*t-a/2, h/4, 0)
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for x in (0, plate-6*t):
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for y in (3*t, h-3*t):
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self.hole(x, y, d=self.screw_holes)
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def rings(self):
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a = self.axle
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r = a/2
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t = self.thickness
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self.moveTo(0, a+1.5*t, -90)
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for i in range(2):
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self.polyline(r-1.5*t, (180, r+3*t), 0, (180, 1.5*t), 0,
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(-180, r), r-1.5*t, (180, 1.5*t))
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self.moveTo(a-t, a+12*t, 180)
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def render(self):
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t = self.thickness
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w = self.width
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d = self.diameter
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a = self.axle
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h = self.height
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self.height = h = max(h, a+10*t)
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self.side(move="right")
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self.side(move="right")
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self.rectangularTriangle(h/4, d/2, "ffe", num=2, r=3*t, move="right")
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if self.one_piece:
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self.roundedPlate(w+h/2+2*t, h, edge="e", r=3*t,
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extend_corners=False,
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callback=[self.backCB], move="right")
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else:
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self.roundedPlate(h/2+t, h, edge="e", r=3*t,
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extend_corners=False,
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callback=[self.backCB], move="right")
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self.roundedPlate(h/2+t, h, edge="e", r=3*t,
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extend_corners=False,
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callback=[self.backCB], move="right mirror")
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self.rings()
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