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numpy-stl

Simple library to make working with STL files (and 3D objects in general) fast and easy.

cadquery

A python parametric CAD scripting framework based on OCCT

rapidyaml

Blazing fast YAML parsing - Python package

pyassimp

The official Open-Asset-Importer-Library Repository. Loads 40+ 3D-file-formats into one unified and clean data structure.

ttconv

Subtitle conversion library and CLI tool. Converts between STL, SRT, TTML, SCC, TTML and WebVTT files.

bdbox

A live development environment for build123d models

pyscaffolder

Generate scaffold from STL file with implicit function (such as TPMS, Schwarz P/ Gyroid).

cq-editor

CadQuery GUI editor based on PyQT

partcad

Package manager for things. Start designing modular hardware! PartCAD is the standard for documenting manufacturable physical products (a.k.a. Digital Thread or TDP). It comes with a set of tools to maintain product information and to facilitate efficient and effective workflows at all product lifecycle phases, boosted by AI.

partcad-cli

Package manager for things. Start designing modular hardware! PartCAD is the standard for documenting manufacturable physical products (a.k.a. Digital Thread or TDP). It comes with a set of tools to maintain product information and to facilitate efficient and effective workflows at all product lifecycle phases, boosted by AI.

cqkit

A python library of CadQuery tools and helpers for building 3D CAD models.

itk-iomeshstl

MeshIO class to read and write ITK meshes into STL files

mapa

Create 3d-printable STLs from satellite 🌍 elevation data

kiln3d

Describe it or draw it. Kiln makes it real. — 750+ MCP tools for AI agents to design, generate, slice, and print 3D models. Supports OctoPrint, Moonraker/Klipper, Creality, Bambu Lab, Prusa Link, Elegoo, and Direct USB.

cqgridfinity

A python library to build parameterized gridfinity compatible objects such a baseplates and boxes.

hpsdecode

A library for decoding HIMSA packed standard (HPS) files.

geofiles

Evaluation of file formats in the context of geo-referenced 3D geometries.

vrmlxpy

Toolkit for VRML parsing and STL conversion. Includes a standalone VRML parser library and a conversion library for transforming VRML geometry into STL format, with modular C++ backends and Python bindings.

cubeforge

Python library to generate 3D (STL) files from cube definitions

stlconverter

STLB/STLA file conversion utility. Available both as Python module and JS interactive interface.

stl-to-h5m

Converts STL files to a DAGMC h5m file using PyMoab

img2stl

Application for converting images to STL (3D model for printing)

diff3d

Fast visual 3d diff for STL, OBJ, 3MF, and STEP files

stl-in-mc

Import STL files into Minecraft