New generator: Rack19Box

Closed box with screw on top for mounting in a 19" rack.

boxes/generators/rack19box.py

@@ -0,0 +1,92 @@
+#!/usr/bin/env python3
+# Copyright (C) 2013-2018 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 Rack19Box(Boxes):
+    """Closed box with screw on top for mounting in a 19" rack."""
+
+    ui_group = "Box"
+
+    def __init__(self):
+        Boxes.__init__(self)
+        self.addSettingsArgs(edges.FingerJointSettings, surroundingspaces=0.5)
+        self.argparser.add_argument(
+            "--depth", action="store", type=float, default=100.,
+            help="inner depth in mm")
+        self.argparser.add_argument(
+            "--height", action="store", type=int, default=2,
+            choices=list(range(1, 17)),
+            help="height in rack units")
+        self.argparser.add_argument(
+            "--triangle", action="store", type=float, default=25.,
+            help="Sides of the triangles holding the lid in mm")
+        self.argparser.add_argument(
+            "--d1", action="store", type=float, default=2.,
+            help="Diameter of the inner lid screw holes in mm")
+        self.argparser.add_argument(
+            "--d2", action="store", type=float, default=3.,
+            help="Diameter of the lid screw holes in mm")
+
+    def wallxCB(self):
+        t = self.thickness
+        self.fingerHolesAt(0, self.h-1.5*t, self.triangle, 0)
+        self.fingerHolesAt(self.x, self.h-1.5*t, self.triangle, 180)
+        
+    def wallxfCB(self): # front
+        t = self.thickness
+        for x in (12.7, self.x+3*12.7+2*t):
+            for y in (6., self.h-6.+t):
+                self.rectangularHole(x, y, 10, 6.5, r=3.25)
+        
+        self.moveTo(t+23., t)
+        self.wallxCB()
+        
+    def wallyCB(self):
+        t = self.thickness
+        self.fingerHolesAt(0, self.h-1.5*t, self.triangle, 0)
+        self.fingerHolesAt(self.y, self.h-1.5*t, self.triangle, 180)
+        
+        
+    def render(self):
+        self.open()
+
+        t = self.thickness
+        self.h = h = self.height * 44.45 - 0.787 - t
+        x = self.x = 436.0 - 2*t
+        y = self.y = self.depth
+
+        d1, d2 =self.d1, self.d2
+        tr = self.triangle
+        trh = tr / 3.
+
+        self.rectangularWall(y, h, "ffef", callback=[self.wallyCB], move="right")
+        self.rectangularWall(x, h, "fFeF", callback=[self.wallxCB],
+                             move="up")
+        self.flangedWall(x, h, "FFeF", callback=[self.wallxfCB], r=t,
+                         flanges=[0., 23., -t, 23.])
+        self.rectangularWall(y, h, "ffef", callback=[self.wallyCB],
+                             move="left up")
+
+        self.rectangularWall(x, y, "fFFF", move="right")
+        self.rectangularWall(x, y, callback=[
+            lambda:self.hole(trh, trh, d=d2)] * 4, move='up')
+
+        self.rectangularTriangle(tr, tr, "ffe", num=4,
+            callback=[None, lambda: self.hole(trh, trh, d=d1)])
+
+        self.close()