PoleHook: Initial commit
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Florian Festi
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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 PoleHook(Boxes): # change class name here and below
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"""Hook for pole like things to be clamped to another pole"""
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def __init__(self):
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Boxes.__init__(self)
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# Uncomment the settings for the edge types you use
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self.addSettingsArgs(edges.FingerJointSettings)
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# Add non default cli params if needed (see argparse std lib)
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self.argparser.add_argument(
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"--diameter", action="store", type=float, default=50.,
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help="diameter of the thing to hook")
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self.argparser.add_argument(
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"--screw", action="store", type=float, default=7.8,
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help="diameter of the screw in mm")
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self.argparser.add_argument(
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"--screwhead", action="store", type=float, default=13.,
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help="with of the screw head in mm")
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self.argparser.add_argument(
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"--screwheadheight", action="store", type=float, default=5.5,
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help="height of the screw head in mm")
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self.argparser.add_argument(
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"--pin", action="store", type=float, default=4.,
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help="diameter of the pin in mm")
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def fork(self, d, w, edge="e", full=True, move=None):
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tw = d + 2 * w
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th = 2 * d
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if self.move(tw, th, move, True):
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return
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e = self.edges.get(edge, edge)
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self.moveTo(0, e.margin())
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if e is self.edges["e"]:
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self.bedBoltHole(tw)
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else:
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e(tw, bedBolts=edges.Bolts(1))
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if full:
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self.hole(-0.5*w, 2*d, self.pin/2)
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self.polyline(0, 90, 2*d, (180, w/2), d, (-180, d/2),
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0.5*d, (180, w/2), 1.5 * d, 90)
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else:
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self.polyline(0, 90, d, 90, w, 90, 0, (-180, d/2),
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0.5*d, (180, w/2), 1.5 * d, 90)
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self.move(tw, th, move)
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def lock(self, l1, l2, w, move=None):
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l1 += w/2
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l2 += w/2
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if self.move(l1, l2, move, True):
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return
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self.hole(w/2, w/2, self.pin/2)
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self.moveTo(w/2, 0)
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self.polyline(l2-w, (180, w/2), l2-2*w, (-90, w/2), l1-2*w, (180, w/2),
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l1-w, (90, w/2))
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self.move(l1, l2, move)
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def backplate(self):
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tw = self.diameter + 2*self.ww
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t = self.thickness
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b = edges.Bolts(1)
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bs = (0.0, )
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self.fingerHolesAt(-tw/2, -2*t, tw, 0, bedBolts=b, bedBoltSettings=bs)
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self.fingerHolesAt(-tw/2, 0, tw, 0, bedBolts=b, bedBoltSettings=bs)
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self.fingerHolesAt(-tw/2, +2*t, tw, 0, bedBolts=b, bedBoltSettings=bs)
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def clamp(self):
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d = self.diameter + 2 * self.ww
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self.moveTo(10, -0.5*d, 90)
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self.edge(d)
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self.moveTo(0, -8, -180)
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self.edge(d)
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def render(self):
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# adjust to the variables you want in the local scope
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d = self.diameter
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t = self.thickness
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# Initialize canvas
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self.open()
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shh = self.screwheadheight
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self.bedBoltSettings = (self.screw, self.screwhead, shh, d/4+shh, d/4) # d, d_nut, h_nut, l, l
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self.ww = ww = 4*t
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self.fork(d, ww, "f", move="right")
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self.fork(d, ww, "f", move="right")
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self.fork(d, ww, "f", full=False, move="right")
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self.fork(d, ww, full=False, move="right")
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self.fork(d, ww, full=False, move="right")
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self.parts.disc(d+2*ww, callback=self.backplate, hole=self.screw, move="right")
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self.parts.disc(d+2*ww, hole=self.screw, move="right")
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self.parts.disc(d+2*ww, callback=self.clamp, hole=self.screw+0.5*t, move="right")
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self.parts.disc(d+2*ww, hole=self.screw+0.5*t, move="right")
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self.parts.waivyKnob(50, callback=lambda:self.nutHole(12.75),
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move="right")
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self.parts.waivyKnob(50, callback=lambda:self.nutHole(12.75),
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move="right")
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self.parts.waivyKnob(50, hole=self.screw+0.5*t, move="right")
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ll = ((d**2 + (0.5*(d+ww))**2)**0.5) - 0.5 * d
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for i in range(3):
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self.lock(ll, ll, ww, move="right")
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for i in range(2):
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self.parts.disc(ww, move="up")
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self.close()
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def main():
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b = PoleHook() # change to class name
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b.parseArgs()
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b.render()
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if __name__ == '__main__':
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main()
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