Gear generator

boxes/generators/gear.py

@@ -0,0 +1,78 @@
+#!/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 Gears(Boxes):
+    """Gears"""
+
+    ui_group = "Part"
+
+    def __init__(self):
+        Boxes.__init__(self)
+        self.argparser.add_argument(
+            "--teeth1",  action="store", type=int, default=12,
+            help="number of teeth")
+        self.argparser.add_argument(
+            "--shaft1", action="store", type=float, default=6.,
+            help="diameter of the shaft 1")
+        self.argparser.add_argument(
+            "--dpercentage1", action="store", type=float, default=75,
+            help="percent of the D section of shaft 1 (100 for round shaft)")
+
+        self.argparser.add_argument(
+            "--teeth2",  action="store", type=int, default=32,
+            help="number of teeth in the other size of gears")
+        self.argparser.add_argument(
+            "--shaft2", action="store", type=float, default=0.0,
+            help="diameter of the shaft2 (zero for same as shaft 1)")
+        self.argparser.add_argument(
+            "--dpercentage2", action="store", type=float, default=0,
+            help="percent of the D section of shaft 1 (0 for same as shaft 1)")
+
+        self.argparser.add_argument(
+            "--modulus",  action="store", type=float, default=5,
+            help="width of teeth in mm")
+        self.argparser.add_argument(
+            "--pressure_angle",  action="store", type=float, default=20,
+            help="angle of the teeth touching (in degrees)")
+        self.argparser.add_argument(
+            "--profile_shift",  action="store", type=float, default=20,
+            help="in precent of the modulus")
+
+    def render(self):
+        # adjust to the variables you want in the local scope
+        t = self.thickness
+        # Initialize canvas
+        self.open()
+
+        if not self.shaft2:
+            self.shaft2 = self.shaft1
+        if not self.dpercentage2:
+            self.dpercentage2 = self.dpercentage1
+
+        self.gears(teeth=self.teeth1, dimension=self.modulus,
+                   angle=self.pressure_angle, profile_shift=self.profile_shift,
+                   callback=lambda:self.dHole(0, 0, d=self.shaft1,
+                                              rel_w=self.dpercentage1/100.),
+                   move="up")
+        self.gears(teeth=self.teeth2, dimension=self.modulus,
+                   angle=self.pressure_angle, profile_shift=self.profile_shift,
+                   callback=lambda:self.dHole(0, 0, d=self.shaft2,
+                                              rel_w=self.dpercentage2/100.),
+                   move="up")
+
+        self.close()