burr-build123d 0.10.0

build123d helpers that emit Burr design data.

burr-build123d

build123d helpers that emit Burr design data.

Install in a build123d project:

uv add burr-build123d

Install the Burr CLI separately:

cargo install burr

from burr_build123d import BurrDesignData, m3_clearance_hole

This package does not replace build123d. It records mechanical intent while normal build123d code creates geometry.

For boss-supported fasteners, pass support_diameter_mm to the helper so Burr can check the declared radial material around the hole or insert pocket.

Use standoff_boss(...) when the raised boss itself should be checked in the exported STEP. Burr verifies the declared boss cylinder and top face separately from the hole or insert it supports.

For custom reliefs or cutouts, keep creating geometry in normal build123d code and attach an explicit spacing envelope to the declared feature:

from burr_build123d import spacing_envelope

design.feature(
    feature_id="rounded_relief_window",
    kind="cutout",
    part="plate",
    intent="cosmetic",
    role="relief_slot",
    spacing_envelope=spacing_envelope(
        segment_start=(0, -8, 0),
        segment_end=(0, 8, 0),
        radius_mm=3.0,
    ),
)

spacing_envelope(...) emits metadata only. It does not create or verify the cutout geometry by itself.