New generator: CoinBankSafe

A piggy-bank designed to look like a safe.

boxes/generators/coinbanksafe.py

@@ -0,0 +1,223 @@
+# Copyright (C) 2024 Oliver Jensen
+#
+#   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 CoinBankSafe(Boxes):
+    """A piggy-bank designed to look like a safe."""
+
+    description ='''
+Make sure not to discard the circle cutouts from the lid, base, and door. They are all needed.
+
+![Closed](static/samples/CoinBankSafe-closed.jpg)
+
+![Open](static/samples/CoinBankSafe-open.jpg)
+
+Assemble the locking pins like this: wiggle-disc, number-disc, doorhole-disc, spacer-disc, D-disc.
+Glue the first three in place, but do not glue the last two.
+Leaving them unglued will allow you change the code, and to remove the pin from the door.
+
+![Pins](static/samples/CoinBankSafe-pins.jpg)
+
+'''
+
+    ui_group = "Misc"
+
+    def __init__(self) -> None:
+        Boxes.__init__(self)
+        self.addSettingsArgs(edges.FingerJointSettings)
+        self.buildArgParser("x", "y", "h")
+        self.argparser.add_argument(
+            "--slotlength", action="store", type=float, default=30,
+            help="Length of the coin slot in mm")
+        self.argparser.add_argument(
+            "--slotwidth", action="store", type=float, default=4,
+            help="Width of the coin slot in mm")
+        self.argparser.add_argument(
+            "--handlelength", action="store", type=float, default=8,
+            help="Length of handle in multiples of thickness")
+        self.argparser.add_argument(
+            "--handleclearance", action="store", type=float, default=1.5,
+            help="Clearance of handle in multiples of thickness")
+
+    def drawNumbers(self, radius, cover):
+        fontsize = 0.8 * (radius - cover)
+        for num in range(8):
+            angle = num*45
+            x = (cover + fontsize *0.4) * math.sin(math.radians(angle))
+            y = (cover + fontsize *0.4) * math.cos(math.radians(angle))
+            self.text(str(num+1), align="center middle", fontsize=fontsize, angle=-angle, color=[1,0,0],
+                          y=y, x=x)
+
+    def lockPin(self, layers, move=None):
+        t = self.thickness
+        cutout_width = t/3
+        barb_length = t
+        base_length = layers * t
+        base_width = t
+        total_length = base_length + barb_length
+        total_width = base_width + cutout_width * 0.5
+        cutout_angle = math.degrees(math.atan(cutout_width / base_length))
+        cutout_length = math.sqrt(cutout_width**2 + base_length**2)
+
+        #self.rectangularWall(5*t, t)
+
+        if self.move(total_length, total_width, move, True):
+            return
+
+        self.edge(total_length)
+        self.corner(90)
+        self.edge(base_width * 1/3)
+        self.corner(90)
+        self.edge(base_length)
+        self.corner(180+cutout_angle, 0)
+        self.edge(cutout_length)
+        self.corner(90-cutout_angle)
+        self.edge(cutout_width * 1.5)
+        self.corner(90)
+        self.edge(barb_length)
+        self.corner(90)
+        self.corner(-90, cutout_width * 0.5)
+        self.edge(base_length - cutout_width * 0.5)
+        self.corner(90)
+        self.edge(t)
+        self.corner(90)
+
+        self.move(total_length, total_width, move)
+
+
+    def render(self):
+        x, y, h = self.x, self.y, self.h
+        t = self.thickness
+
+        slot_length = self.slotlength
+        slot_width = self.slotwidth
+
+        handle_length = self.handlelength * t
+        handle_clearance = self.handleclearance * t
+
+        # lock parameters
+        big_radius = 2.25 * t
+        small_radius = 1.4 * t
+        doorhole_radius = 1.25 * t
+        spacing = 1
+
+        # side walls
+        with self.saved_context():
+            self.rectangularWall(x, h, "seFf", move="mirror right")
+            self.rectangularWall(y, h, "sFFF", move="right")
+
+            # wall with holes for the locking bar
+            self.rectangularWall(
+                x, h, "sfFe", ignore_widths=[3,4,7,8],
+                callback=[lambda: self.fingerHolesAt(2.75*t, 0, h, 90)],
+                move="mirror right")
+
+            # locking bar
+            self.moveTo(0, self.edges['s'].spacing() + t)
+            self.rectangularWall(1.33*t, h, "eeef", move="right")
+            # door
+            door_clearance = .1 * t # amount to shave off of the door width so it can open
+            before_hinge = 1.25 * t - door_clearance
+            after_hinge = y - 2.25 * t - door_clearance
+            self.moveTo(self.spacing/2, -t)
+            self.polyline(
+                after_hinge, -90, t, 90, t, 90, t, -90, before_hinge, 90,
+                h, 90,
+                before_hinge, -90, t, 90, t, 90, t, -90, after_hinge, 90,
+                h, 90)
+            num_dials = 3
+            space_under_dials = 6*big_radius
+            space_not_under_dials = h - space_under_dials
+            dial_spacing = space_not_under_dials / (num_dials + 1)
+            if dial_spacing < 1 :
+                min_height = 6*big_radius + 4
+                raise ValueError(f"With thickness {t}, h must be at least {min_height} to fit the dials.")
+
+            for pos_y in (h/2,
+                          h/2 - (2*big_radius + dial_spacing),
+                          h/2 + (2*big_radius + dial_spacing)):
+                self.hole(3*t - door_clearance, pos_y, doorhole_radius)
+                self.rectangularHole(3*t - door_clearance, pos_y, t, t)
+            self.rectangularHole(y/2 - door_clearance, h/2, t, handle_length / 2)
+
+        self.rectangularWall(x, h, "seff", move="up only")
+
+        # top
+        self.rectangularWall(
+            y, x, "efff", callback=[
+                lambda: self.rectangularHole(y/2, x/2, slot_length, slot_width),
+                lambda: (self.hole(1.75*t, 1.75*t, 1.15*t),
+                         self.rectangularHole(1.75*t, 1.75*t, t, t))],
+            label="top", move="right")
+
+        # bottom
+        self.rectangularWall(
+            y, x, "efff", callback=[
+                lambda: (self.hole(1.75*t, 1.75*t, 1.15*t),
+                         self.rectangularHole(1.75*t, 1.75*t, t, t))],
+            label="bottom", move="right")
+
+        def holeCB():
+            self.rectangularHole(0, 0, t, t)
+            self.moveTo(0, 0, 45)
+            self.rectangularHole(0, 0, t, t)
+
+        # locks
+        with self.saved_context():
+            self.partsMatrix(3, 1, "right", self.parts.disc, 2*big_radius,
+                             callback=lambda: (self.drawNumbers(big_radius, small_radius), self.rectangularHole(0, 0, t, t)))
+            self.partsMatrix(3, 1, "right", self.parts.disc, 2*big_radius,
+                             dwidth=0.8,callback=holeCB)
+            self.partsMatrix(
+                3, 1, "right", self.parts.disc, 2*small_radius,
+                callback=lambda:self.rectangularHole(0, 0, t, t))
+            self.partsMatrix(
+                3, 1, "right", self.parts.waivyKnob, 2*small_radius,
+                callback=lambda:self.rectangularHole(0, 0, t, t))
+
+        self.partsMatrix(3, 1, "up only", self.parts.disc, 2*big_radius)
+
+        # lock pins
+        with self.saved_context():
+            self.lockPin(5, move="up")
+            self.lockPin(5, move="up")
+            self.lockPin(5, move="up")
+        self.lockPin(5, move="right only")
+
+        # handle
+        self.moveTo(0)
+        handle_curve_radius = 0.2 * t
+        self.moveTo(t * 2.5)
+        self.polyline(
+            0,
+            (90, handle_curve_radius),
+            handle_length - 2 * handle_curve_radius,
+            (90, handle_curve_radius),
+            handle_clearance - handle_curve_radius,
+            90,
+            handle_length / 4,
+            -90,
+            t,
+            90,
+            handle_length / 2,
+            90,
+            t,
+            -90,
+            handle_length / 4,
+            90,
+            handle_clearance - handle_curve_radius,
+            )

static/samples/samples.sha256

@@ -159,3 +159,9 @@ cdd8658c4bd66de5e00c5a961583986a47c29532e006cb4fedb69faab60c9bac  ../static/samp
 27699d62eab473d903f2bcf0f334c2c36ff3601772c4c0ddeae89606a7bb10b5 *../static/samples/FlexTest2.jpg
 853ace5a13ac571696a1965c72ae456c769ed4bc01ea29bb60bbe40518dcecf9 *../static/samples/RectangularWall.jpg
 ed533e9827b58591fccbed9e6d31ff8c10bb7f9981501771f6577616a9fbe71b *../static/samples/WallRack.jpg
+f625a31c8f1f08341f8e4c0ba5d34524f92e258ca2ae3027774c399a200ddfc9  ../static/samples/CoinBankSafe.jpg
+49d330c7159dd77fc2e7a4d82ca46f2834c7e35a8c59b44739c0defbd045bedf  ../static/samples/CoinBankSafe-open.jpg
+17e9c4f4da3a74b94168913b78695918096269dfd2c59feb70bd4a833e155d04  ../static/samples/CoinBankSafe-pins.jpg
+94e37a41d8b873f39bd3e8c74465b012c8f861031c93f64fd6eda89af02015c0  ../static/samples/FlexBook-2.jpg
+4d8b4d5467a88431ba24e893157a6e09997d74654cd7e27878d2a54b1ee751c6  ../static/samples/CoinBankSafe-closed.jpg
+bace3582c13ee543f09fd45752d4403e237d01541aaa4ea266e61e64fd12156a  ../static/samples/FlexBook.jpg