Source code for boxes.generators.stachel

# 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 Stachel(Boxes): """Bass Recorder Endpin""" ui_group = "Misc" def __init__(self) -> None: Boxes.__init__(self) self.argparser.add_argument( "--flutediameter", action="store", type=float, default=115.0, help="diameter of the flutes bottom in mm") self.argparser.add_argument( "--polediameter", action="store", type=float, default=25., help="diameter if the pin in mm") self.argparser.add_argument( "--wall", action="store", type=float, default=7., help="width of the surrounding wall in mm") def layer(self, ri, ro, rp, holes=False, move=""): r = 2.5 # radius l = 25 # depth of clamp w = 20 # width of clamp wp = rp+8 # width pole tw = 2*ro + 2*rp th = 2*ro + l if self.move(tw, th, move, True): return self.moveTo(ro, r, 90) a1 = math.degrees(math.asin(w / ro)) a2 = math.degrees(math.asin(wp / ro)) l1 = ro*(1-math.cos(math.radians(a1))) a3 = math.degrees(math.asin(1./rp)) self.polyline(ro-ri+l-r, 90, 0, (-355, ri), 0, 90, ro-ri+l-r, # inside (90, r), w-2*r, (90, r)) if holes: # right side main clamp poly1 = [(l+l1-2)/2-r, 90, w-2, -90, 2, -90, w-2, 90, (l+l1-2)/2] self.polyline(*poly1) else: self.polyline(l+l1-r) self.polyline(0, -90+a1, 0 , (90-a1-a2, ro), 0, -90+a2) if holes: poly2 = [2*rp+15, 90, wp-2, -90, 2, -90, wp-2, 90, 10-2-r] self.polyline(*poly2) else: self.polyline(25+2*rp-r) self.polyline(0, (90, r), wp-1-r, 90, 20, 90-a3, 0, (-360+2*a3, rp), 0, 90-a3, 20, 90, wp-1-r, (90, r)) if holes: self.polyline(*list(reversed(poly2))) else: self.polyline(25+2*rp-r) self.polyline(0, -90+a2, 0, (270-a2-a1-5, ro), 0, (-90+a1)) if holes: # left sidemain clamp self.polyline(*list(reversed(poly1))) else: self.polyline(l+l1-r) self.polyline(0, (90, r), w-2*r, (90, r)) self.move(tw, th, move) def render(self): ri = self.flutediameter / 2.0 ro = ri + self.wall rp = self.polediameter / 2.0 w = self.wall self.layer(ri-20, ro, rp, move="up") self.layer(ri, ro, rp, True, move="up") self.layer(ri, ro, rp, move="up")