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65 lines
2.2 KiB
Python
65 lines
2.2 KiB
Python
"""
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A fast way to make many holes.
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name: fast_grid_holes.py
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by: Gumyr
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date: May 31, 2025
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desc:
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This example demonstrates an efficient approach to creating a large number of holes
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(625 in this case) in a planar part using build123d.
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Instead of modeling and subtracting 3D solids for each hole—which is computationally
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expensive—this method constructs a 2D Face from an outer perimeter wire and a list of
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hole wires. The entire face is then extruded in a single operation to form the final
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3D object. This approach significantly reduces modeling time and complexity.
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The hexagonal hole pattern is generated using HexLocations, and each location is
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populated with a hexagonal wire. These wires are passed directly to the Face constructor
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as holes. On a typical Linux laptop, this script completes in approximately 1.02 seconds,
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compared to substantially longer runtimes for boolean subtraction of individual holes in 3D.
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license:
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Copyright 2025 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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# [Code]
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import timeit
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from build123d import *
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from ocp_vscode import show
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start_time = timeit.default_timer()
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# Calculate the locations of 625 holes
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major_r = 10
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hole_locs = HexLocations(major_r, 25, 25)
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# Create wires for both the perimeter and all the holes
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face_perimeter = Rectangle(500, 600).wire()
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hex_hole = RegularPolygon(major_r - 1, 6, major_radius=True).wire()
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holes = hole_locs * hex_hole
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# Create a new Face from the perimeter and hole wires
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grid_pattern = Face(face_perimeter, holes)
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# Extrude to a 3D part
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grid = extrude(grid_pattern, 1)
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print(f"Time: {timeit.default_timer() - start_time:0.3f}s")
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show(grid)
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# [End]
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