bdbox 0.7.0

Parametric configuration and tooling for build123d models.

bdbox

A live development environment for build123d models.

See the documentation site for full project details!

Installation

pip install bdbox

Works with any build123d model

Use bdbox with build123d models:

# mymodel.py
from build123d import Box

result = Box(10, 10, 10)

Export to STEP or STL with bdbox:

bdbox mymodel.py export out.step  # Export to STEP

bdbox mymodel.py export out.stl   # Export to STL

Python module paths work too:

bdbox mypackage.mymodule.mymodel export out.step

python -m mypackage.mymodule.mymodel export out.step

A specific model class can be chosen from a module using bdbox:

bdbox mypackage.mymodule.mymodel:MyModel export out.step

View your model in your browser with OCP CAD Viewer, started automatically. bdbox automatically re-renders your model on save:

bdbox mymodel.py view

bdbox mypackage.mymodule.mymodel view

See more about actions in the documentation!

Add parameters for interactive customization

Easily create parametric models using bdbox! Declare typed parameters with defaults, then override them individually or with named presets:

from bdbox import Float, Int, Params, Preset, show
from build123d import Box

class P(Params):
    width = Float(10.0, min=5, max=100)
    length = Float(20.0, min=5, max=100)
    thickness = Int(2, min=1, max=10)
    presets = (
        Preset("small", width=5.0, length=8.0),
        Preset("large", width=80.0, length=40.0, thickness=5),
    )

result = Box(P.width, P.length, P.thickness)
show(result)

Or inherit from the provided base class for reusable, importable models:

from bdbox import Float, Int, Model, Preset
from build123d import Box

class MyModel(Model):
    width = Float(10.0, min=5, max=100)
    length = Float(20.0, min=5, max=100)
    thickness = Int(2, min=1, max=10)
    presets = (
        Preset("small", width=5.0, length=8.0),
        Preset("large", width=80.0, length=40.0, thickness=5),
    )

    def build(self):
        return Box(self.width, self.length, self.thickness)

Parameters become CLI flags automatically:

python mymodel.py                 # Run with default values
python mymodel.py view            # View with live reload
python mymodel.py --width 50      # Override a field value
python mymodel.py --preset large  # Apply a named preset
python mymodel.py --help          # Usage info with all parameters

Export geometry to STEP or STL files using the built-in export action:

python mymodel.py export output.step  # Export to STEP
python mymodel.py export output.stl   # Export to STL

See more about parameters in the documentation!

Project template

This project is generated and maintained with copier-python.