3d Printing GitHub Repositories (2026) · Open Source Tools

A self-hosted digital asset manager for 3d print files.

3D CAD application

MSLA/DLP, file analysis, calibration, repair, conversion and manipulation

Full-color flat FDM printing with calibrated filament layer mixing. Reproduce image colors and tonal detail, fine-tune local recipes, and export slicer-ready 3MF files.

A Python library for designing chips (Photonics, Analog, Quantum, MEMS), PCBs, and 3D-printable objects. We aim to make hardware design accessible, intuitive, and fun—empowering everyone to build the future.

Parametric 3D CAD with a real B-rep kernel (OpenCASCADE)

Web app for planning drawer organization using the Gridfinity modular storage system

The ShapeScript 3D modeling app for macOS and iOS

Rinkhals custom firmware for Anycubic Kobra 3D printers

Transform your spin bike into a Smart Trainer!

Free open source client for OctoPrint

:globe_with_meridians: Fast 3D file format converter in C++ supporting OBJ, 3DS, MA, MB, XSI, LWO, DXF, STL, MAT, DAE.

Exact B-Rep CAD in TypeScript, with a Claude Code plugin that lets agents write parts and check them on OpenCascade.

git diff for CAD assemblies — two STEP files in, a picture of what changed plus a machine-readable change list out.

OrcaSlicer fork that prints with two different nozzle sizes in one print, each at its own layer height.

Open-source digital sculpting app in Rust — sculpt 3D models like digital clay. Windows & Linux. Beta: testers welcome!

Fast, free and open-source 3D model viewer for Android: STL, OBJ, 3MF, STEP, IGES. Section cuts, measuring, wall thickness, weight estimates. No ads, no tracking.

Bambu Handy features for printers in LAN-only mode, with optional Home Assistant support.

📐 Describe a part, get a printable model: a native macOS CAD studio powered by Claude Code / Codex and build123d.