b3dkit Overview

b3dkit is a general purpose library extending some of build123d's Parts and adding handy utility functions.

It's grown to include some capabilities not required by that project. Useful components include:

  • dovetail: Splits a build123d Part object into two parts that can easily be slid together with very tight tolerances. Useful when building parts larger than your printer's build volume. This includes a "snugtail" type that is uniquely suited to 3d printing and results in very strong bonds with a high surface area for friction to hold it in place, or glue to bond.
  • click_fit: a tapered profile that allows for better printing & assembly than a simple half Sphere to allow parts to "click" or snap into place when fit together. The extruded shape and the socket are both shaped carefully to allow a mix of easy assembly and good hold.
  • Point: a lightweight X,Y coordinate point object with some geometric functions built into the object.
  • HexWall: builds a field of hexagons with gaps in-between within a given set of bounds.

Documentation

Complete developer documentation for b3dkit is maintained in the docs folder and on the b3dkit documentation site.

Fork from fb-lbrary

The b3dkit library began as a library specific to Fender-Bender: a way to externalize and isolate some common utilities, functions, & methods from the project. It has since grown to include many parts and utilities that are not used by fender-bender. As part of a major rewrite to adhere method names and usage to feel more like Build123d native usage, we've forked and renamed the project to b3dkit, to better reflect our current purpose.

Modifying the Source

The included source files rely on the build123d library. I recommend following the build123d installation instructions.

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

License

This project is licensed under the terms of the MIT license

Project links

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  • Released:
Newer release available (0.5.0)

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Credits

Author: x0pherl

GitHub Statistics

Data verified by PyPI on Sep 6, 2026
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License

MIT License

Requires

Python >=3.11

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