Open-source alternatives to NASA 3D Resources

An add-on for Blender allowing to create URDF, SDF and SMURF robot models in a WYSIWYG environment.

The TiGL Geometry Library to process aircraft geometries in pre-design.

OPEM (Open Source PEM Fuel Cell Simulation Tool)

WireViz is a suite of tools for documenting electrical connections, converting wire gauges, and producing bills of materials and diagrams. It functions as a text-to-diagram framework that converts descriptions of cables and pinouts into graphical wiring harness diagrams and technical specifications. The system includes a wiring harness diagramming tool that generates SVG or PNG files from text descriptions and a wiring BOM generator that produces comprehensive bills of materials for cables and electrical harnesses. It also features an electrical wire gauge calculator for converting thickness

foxBMS is a free, open and flexible development environment to design battery management systems. It is the first modular open source BMS development platform.

FreeCAD is an open-source engineering design suite designed for parametric 3D modeling, architectural planning, and mechanical assembly. It functions as a professional-grade platform that utilizes history-based operations to allow for non-destructive design updates, enabling users to construct complex geometry through a sequence of constrained sketches and solid operations. The platform distinguishes itself through a highly modular, workbench-based architecture that allows users to tailor the interface and toolsets to specific engineering domains. It features deep Python integration, which se

Horizon is a free EDA package

A powerful, innovative and intuitive EDA suite for everyone!

High performance motor control

OpenAeroStruct is a lightweight tool that performs aerostructural optimization using OpenMDAO.

Python parser for URDFs

A model generator for energy system modelling and optimisation (LP/MILP).

OpenSCAD is a script-based 3D modeler and parametric CAD tool that generates three-dimensional solid objects from programmable scripts. It utilizes a constructive solid geometry engine to create complex shapes by performing boolean operations on basic geometric primitives. The system functions as a compiler that transforms a functional language into geometric representations, allowing for precise dimensional control through variables and functions. It features a WebAssembly implementation that enables the geometry pipeline to execute directly within web browsers. The software covers a broad

An open-source mathematical tire modelling library

visualize URDF/XACRO file, URDF Viewer works on Windows/MacOS/Linux

A set of documented functions for simulating the performance of photovoltaic energy systems.

Repository for URDF parsing code

An Aircraft Design Toolbox

Software tools/utilities made by others to augment the KiCad PCB EDA suite.

Chisel is a hardware construction language and description tool used to define digital circuits. It functions as a generator that converts high-level hardware descriptions into synthesizable Verilog code for use in ASIC and FPGA design. The project enables the creation of parameterizable hardware templates and reusable digital components. It leverages functional and object-oriented programming patterns to transform complex circuit representations into finalized hardware descriptions. The toolset covers the register-transfer level design workflow, allowing users to model digital circuits usin