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109 lines
4 KiB
Python
109 lines
4 KiB
Python
"""
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name: extrude.py
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by: Gumyr
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date: September 20th 2022
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desc:
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This example demonstrates multiple uses of Extrude cumulating in
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the design of a key cap.
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license:
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Copyright 2022 Gumyr
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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"""
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from build123d import *
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# Extrude pending face by amount
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with BuildPart() as simple:
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with BuildSketch():
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Text("O", fontsize=10, halign=Halign.CENTER, valign=Valign.CENTER)
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Extrude(amount=5)
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# Extrude pending face in both directions by amount
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with BuildPart() as both:
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with BuildSketch():
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Text("O", fontsize=10, halign=Halign.CENTER, valign=Valign.CENTER)
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Extrude(amount=5, both=True)
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# Extrude multiple pending faces on multiple faces
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with BuildPart() as multiple:
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Box(10, 10, 10)
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with Workplanes(*multiple.faces()):
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with GridLocations(5, 5, 2, 2):
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with BuildSketch():
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Text("Ω", fontsize=3, halign=Halign.CENTER, valign=Valign.CENTER)
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Extrude(amount=1)
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# Extrude provided face on multiple faces & subtract
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with BuildSketch() as rect:
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Rectangle(7, 7)
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with BuildPart() as single_multiple:
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Box(10, 10, 10)
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with Workplanes(*single_multiple.faces()):
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Extrude(rect.faces()[0], amount=-2, mode=Mode.SUBTRACT)
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# Non-planar surface
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with BuildPart() as non_planar:
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Cylinder(10, 20, rotation=(90, 0, 0), centered=(True, False, True))
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Box(10, 10, 10, centered=(True, True, False), mode=Mode.INTERSECT)
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Extrude(non_planar.part.faces() << Axis.Z, amount=2, mode=Mode.REPLACE)
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# Taper Extrude and Extrude to "next" while creating a Cherry MX key cap
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# See: https://www.cherrymx.de/en/dev.html
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with BuildPart() as key_cap:
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# Start with the plan of the key cap and extrude it
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with BuildSketch() as plan:
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Rectangle(18 * MM, 18 * MM)
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Extrude(amount=10 * MM, taper=15)
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# Create a dished top
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with Locations((0, -3 * MM, 47 * MM)):
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Sphere(40 * MM, mode=Mode.SUBTRACT, rotation=(90, 0, 0))
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# Fillet all the edges except the bottom
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Fillet(
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*key_cap.edges().filter_by_position(
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Axis.Z, 0, 30 * MM, inclusive=(False, True)
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),
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radius=1 * MM,
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)
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# Hollow out the key by subtracting a scaled version
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Scale(by=(0.925, 0.925, 0.85), mode=Mode.SUBTRACT)
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# Add supporting ribs while leaving room for switch activation
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with Workplanes(Plane(origin=(0, 0, 4 * MM))):
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with BuildSketch():
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Rectangle(17.5 * MM, 0.5 * MM)
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Rectangle(0.5 * MM, 17.5 * MM)
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Circle(radius=5.51 * MM / 2)
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# Extrude the mount and ribs to the key cap underside
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Extrude(until=Until.NEXT)
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# Find the face on the bottom of the ribs to build onto
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rib_bottom = key_cap.faces().filter_by_position(Axis.Z, 4 * MM, 4 * MM)[0]
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# Add the switch socket
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with Workplanes(rib_bottom):
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with BuildSketch() as cruciform:
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Circle(radius=5.5 * MM / 2)
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Rectangle(4.1 * MM, 1.17 * MM, mode=Mode.SUBTRACT)
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Rectangle(1.17 * MM, 4.1 * MM, mode=Mode.SUBTRACT)
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Extrude(amount=3.5 * MM, mode=Mode.ADD)
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if "show_object" in locals():
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show_object(simple.part.translate((-15, 0, 0)), name="simple pending extrude")
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show_object(both.part.translate((20, 10, 0)), name="simple both")
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show_object(multiple.part.translate((0, -20, 0)), name="multiple pending extrude")
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show_object(single_multiple.part.translate((0, 20, 0)), name="single multiple")
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show_object(non_planar.part.translate((20, -10, 0)), name="non planar")
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show_object(key_cap.part, name="key cap", options={"alpha": 0.7})
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