boxespy/boxes/generators/laserclamp.py

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2018-10-05 16:28:47 +02:00
#!/usr/bin/env 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 *
class LaserClamp(Boxes):
"""A clamp to hold down material to a knife table"""
ui_group = "Misc"
def __init__(self):
Boxes.__init__(self)
self.addSettingsArgs(edges.FingerJointSettings, surroundingspaces=0)
self.argparser.add_argument(
"--minheight", action="store", type=float, default=25.,
help="minimal clamping height in mm")
self.argparser.add_argument(
"--maxheight", action="store", type=float, default=50.,
help="maximal clamping height in mm")
self.argparser.add_argument(
"--extraheight", action="store", type=float, default=0.,
help="extra height to make operation smoother in mm")
def topPart(self, l, move=None):
t = self. thickness
tw, th = 10*t, l+4*t
if self.move(tw, th, move, True):
return
self.moveTo(4*t, 0)
self.rectangularHole(t, 2*t+l/2, 1.1*t, l)
self.polyline(2*t, (90, t), l+t, -90, 2*t, 90, 0,
(90, 2*t), 3*t, (90, t),
0, (-90, t), 0, 90, 0, (-180, 0.5*t), 0, 90, 0,
(180, t), t, (-90, t),
l-2*t, (90, t))
self.move(tw, th, move)
def bottomPart(self, h_min, h_extra, move=None):
t = self. thickness
tw, th = 10*t, h_min+4*t
if self.move(tw, th, move, True):
return
ls = t/2*(2**.5)
self.moveTo(2*t, 0)
self.fingerHolesAt(3*t, 2*t, h_min+h_extra, 90)
if h_extra:
self.polyline(4*t, (90,t), h_extra-2*t, (-90, t), 0, (90, 2*t), 0, 45)
else:
self.polyline(6*t, (90, 2*t), 0, 45)
self.polyline(*[ls, 90, ls, -90]*3)
self.polyline(0, -45, h_min, (90, t), 2*t, (90, t),
h_min+h_extra-1*t, (-90, t), t, (180, t),
0, 90, 0, (-180, 0.5*t), 0 , 90)
self.move(tw, th, move)
def render(self):
t = self. thickness
h_max, h_min, h_extra = self.maxheight, self.minheight,self.extraheight
self.open()
if h_extra and h_extra < 2*t:
h_extra = 2*t
self.topPart(h_max+h_extra, move="right")
self.bottomPart(h_min, h_extra, move="right")
self.bottomPart(h_min, h_extra, move="right")
self.rectangularWall(1.1*t, h_min+h_extra, "efef")
self.close()