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bamboogenerator
Python scripts for generating 3D printable models using the
trimesh library. The repository contains a consolidated
parametric_cad package with example scripts that produce STL files.
Folder layout
parametric_cad/– library with primitives, mechanisms, STL export utilities and example scripts.
Installation
Install the required Python packages and configure OpenSCAD using the installer script in the repository root. From the desired project directory run:
python install_requirements.py
This installs all Python dependencies and attempts to set up trimesh for OpenSCAD rendering.
Running the examples
Set PYTHONPATH to the project directory and execute one of the scripts
from parametric_cad/examples/, for example:
export PYTHONPATH=.
python parametric_cad/examples/spur_gear_example.py
You can also run all examples at once using the cross-platform run_examples.py script.
Generated STL files are written to output/<example>_output/.
Combining Primitives
Functions combine and safe_difference from
parametric_cad/core.py help manipulate meshes.
combine(objects)– returns the union of the provided meshes or primitives by concatenating their geometry.safe_difference(mesh, other)– subtracts one mesh (or list of meshes) from another and gracefully falls back to the original mesh if the boolean operation fails.
Example:
from parametric_cad.primitives import Box, Cylinder
from parametric_cad.core import combine, safe_difference
boxes = [Box(1, 1, 1).at(x, 0, 0) for x in range(3)]
unioned = combine(boxes)
result = safe_difference(unioned, Cylinder(0.5, 1).mesh())
Overhang Scaffolding
generate_scaffolding creates simple cylindrical supports beneath
downward facing surfaces that exceed a chosen overhang angle. The supports
are meant to be easy to remove after printing.
from parametric_cad import generate_scaffolding, Box, combine
base = Box(20, 20, 10)
ledge = Box(10, 10, 5).at(15, 5, 10)
model = combine([base, ledge])
supports = generate_scaffolding(model)
License
This project is licensed under the MIT License.