Stl Python Packages

cadquery

A python parametric CAD scripting framework based on OCCT

numpy-stl

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

pyassimp

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

pyvista-stl

Faster STL file reader

cadgen

Give your agent CAD superpowers.

ttconv

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

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.

bdbox

A workshop for build123d models with live preview and interactive parameters

cqkit

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

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.

cqgridfinity

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

pyscaffolder

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

kiln3d

Describe it or draw it — Kiln makes it real. The open-source MCP server for 3D printing: AI agents (Claude, Codex, Cursor, or any MCP client) design, generate, slice & print on Bambu Lab, Creality, Prusa, Elegoo, Klipper/Moonraker, OctoPrint, Duet/RepRapFirmware & any Marlin printer.

satprint

Satellite terrain to 3D-printable models: watertight STL, multi-color 3MF and textured GLB, with OpenStreetMap buildings, roof shapes and landmarks

meshright

Free, open source 3D mesh repair for 3D printing and scanning. A beginner-friendly Meshmixer alternative that runs on your own computer.

cq-editor

CadQuery GUI editor based on PyQT

itk-iomeshstl

MeshIO class to read and write ITK meshes into STL files

lamina3d

Lamina (lamina3d): free Slicer for Fusion 360 alternative. Turn 3D models into flat cut parts for laser, CNC, plasma and vinyl cutters: paper, cardboard, plywood, acrylic, sheet metal

3d-base

Headless pictures of 3D meshes with correct occlusion and smooth shading, and a health check for exported STL files

sentil

Runtime verification for Probabilistic Signal Temporal Logic

stlbench

Prepare STL files for resin 3D printing: repair meshes, optimize orientation, scale to fit, pack parts onto build plates, and export 3MF.

hpsdecode

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

print-doctor

3D printing full-workflow assistant: pre-flight printability check, cost quoting, real-time defect monitoring, and ML photo diagnosis. Check STL/3MF before printing, quote for print shops, catch failures live.

3d-card

Turn 3D-printable parts into one printable kit card, like a model-kit sprue, and check every part comes off clean