90 lines
3.1 KiB
Python
90 lines
3.1 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 LaserClamp(Boxes):
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"""A clamp to hold down material to a knife table"""
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ui_group = "Misc"
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def __init__(self):
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Boxes.__init__(self)
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self.addSettingsArgs(edges.FingerJointSettings, surroundingspaces=0)
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self.argparser.add_argument(
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"--minheight", action="store", type=float, default=25.,
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help="minimal clamping height in mm")
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self.argparser.add_argument(
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"--maxheight", action="store", type=float, default=50.,
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help="maximal clamping height in mm")
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self.argparser.add_argument(
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"--extraheight", action="store", type=float, default=0.,
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help="extra height to make operation smoother in mm")
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def topPart(self, l, move=None):
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t = self. thickness
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tw, th = 10*t, l+4*t
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if self.move(tw, th, move, True):
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return
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self.moveTo(4*t, 0)
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self.rectangularHole(t, 2*t+l/2, 1.1*t, l)
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self.polyline(2*t, (90, t), l+t, -90, 2*t, 90, 0,
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(90, 2*t), 3*t, (90, t),
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0, (-90, t), 0, 90, 0, (-180, 0.5*t), 0, 90, 0,
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(180, t), t, (-90, t),
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l-2*t, (90, t))
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self.move(tw, th, move)
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def bottomPart(self, h_min, h_extra, move=None):
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t = self. thickness
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tw, th = 10*t, h_min+4*t
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if self.move(tw, th, move, True):
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return
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ls = t/2*(2**.5)
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self.moveTo(2*t, 0)
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self.fingerHolesAt(3*t, 2*t, h_min+h_extra, 90)
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if h_extra:
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self.polyline(4*t, (90,t), h_extra-2*t, (-90, t), 0, (90, 2*t), 0, 45)
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else:
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self.polyline(6*t, (90, 2*t), 0, 45)
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self.polyline(*[ls, 90, ls, -90]*3)
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self.polyline(0, -45, h_min, (90, t), 2*t, (90, t),
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h_min+h_extra-1*t, (-90, t), t, (180, t),
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0, 90, 0, (-180, 0.5*t), 0 , 90)
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self.move(tw, th, move)
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def render(self):
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t = self. thickness
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h_max, h_min, h_extra = self.maxheight, self.minheight,self.extraheight
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self.open()
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if h_extra and h_extra < 2*t:
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h_extra = 2*t
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self.topPart(h_max+h_extra, move="right")
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self.bottomPart(h_min, h_extra, move="right")
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self.bottomPart(h_min, h_extra, move="right")
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self.rectangularWall(1.1*t, h_min+h_extra, "efef")
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self.close()
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