Python CAD Software

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Browse free open source Python CAD Software and projects below. Use the toggles on the left to filter open source Python CAD Software by OS, license, language, programming language, and project status.

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  • 1
    FreeCAD

    FreeCAD

    a parametric 3D CAD modeler

    This is an official mirror of FreeCAD. Code and release files are primarily hosted on https://github.com/FreeCAD/FreeCAD and mirrored here. FreeCAD is a general purpose feature-based, parametric 3D modeler for CAD, MCAD, CAx, CAE and PLM, aimed directly at mechanical engineering and product design but also fits a wider range of uses in engineering, such as architecture or other engineering specialties. It is 100% Open Source and extremely modular, allowing for very advanced extension and customization. FreeCAD is based on OpenCasCade, a powerful geometry kernel, features an Open Inventor-compliant 3D scene representation model provided by the Coin 3D library, and a broad Python API. The interface is built with Qt. FreeCAD runs exactly the same way on Windows, Mac OSX and Linux platforms.
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    Downloads: 1,124 This Week
    Last Update:
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  • 2
    dxf2gcode

    dxf2gcode

    DXF2GCODE: converting 2D dxf drawings to CNC machine compatible G-Code

    DXF2GCODE is a tool for converting 2D (dxf, pdf, ps) drawings to CNC machine compatible GCode. Windows, Linux, and Mac support by using python scripting language.
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    Downloads: 371 This Week
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  • 3
    TexGen
    TexGen is a geometric textile modelling software package to be used for obtaining engineering properties of woven textiles and textile composites. Citing TexGen We would be grateful if you could acknowledge use of TexGen where appropriate and suggest using one of the following references: L P Brown and A C Long. "Modelling the geometry of textile reinforcements for composites: TexGen", Chapter 8 in "Composite reinforcements for optimum performance (Second Edition)", ed. P Boisse, Woodhead Publishing Ltd, 2021, ISBN: 978-0-12-819005-0. https://doi.org/10.1016/B978-0-12-819005-0.00008-3 Lin, H., Brown, L. P. & Long, A. C. 2011. Modelling and Simulating Textile Structures using TexGen. Advanced Materials Research, 331, 44-47. To reference version 3.13.0 please use: Louise Brown, mike-matveev, & georgespackman. (2023). louisepb/TexGen: TexGen v3.13.1 (v3.13.1). Zenodo. https://doi.org/10.5281/zenodo.8221491
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    Downloads: 356 This Week
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  • 4
    Seamly2D

    Seamly2D

    Free and open source pattern design software

    Seamly2D enables the design, reuse, and remix of digital sewing patterns for creating bespoke-fit, specialty-sized, and ready-to-wear-sized clothing. Users have the right to utilize, sell, share, and distribute their patterns in any way they choose. * Downloads: https://seamly.io * Support: https://forum.seamly.io * Code: https://github.com/fashionfreedom/seamly2d * License: GPLv3+
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    Downloads: 346 This Week
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  • 5
    PyCAM
    Open Source CAM - Toolpath Generation for 3-Axis CNC machining
    Downloads: 35 This Week
    Last Update:
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  • 6
    OdooPLM

    OdooPLM

    A Full PLM system based on odoo

    OdooPLM is a full open source PLM system built on Odoo. Manage 3D models, 2D drawings, BOMs, revisions and documents directly inside Odoo, with a Windows connector for the most common CAD systems. This SourceForge project hosts the WINDOWS CAD CONNECTOR. One connector works with all supported Odoo versions (v11 and later) — no need to match it to your server. Download it from the https://sourceforge.net/projects/openerpplm/files/Client/Stable/ The Odoo server modules are NOT here. Get them from: Odoo Apps Store: apps.odoo.com/apps/modules/browse?search=omniasolutions GitHub: github.com/OmniaGit/odooplm Install the modules on your Odoo server first, then the connector on your CAD workstation. Supported CAD: SolidWorks, Solid Edge, Inventor, ThinkDesign, AutoCAD, DraftSight, FreeCAD, ZwCAD. Maintained by OmniaSolutions — building Odoo PLM since 2010. More: website https://odooplm.omniasolutions.website — info@omniasolutions.eu
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    Downloads: 22 This Week
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  • 7
    Libre Mechanics

    Libre Mechanics

    Open Knowledge on engineering development.

    Libre Mechanics it’s an Open Knowledge project created to offer a useful platform of information related with the development and research of Mechanical Engineering themes and similar fields, higly related with the use of Open Source and Software Libre tools. Here you will find a wide variety of projects, publications and scientific material available as references for developing their own projects, also guides and tutorials that allow you to take advantage of free software tools available today. The four principal lines of work are: Design Analysis and Simulation Automation and Robotics Development
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    Downloads: 30 This Week
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  • 8
    PythonCAD

    PythonCAD

    CAD Application entire developed in Python

    PythonCAD is a CAD package written, surprisingly enough, in Python using the PySide6 interface and python3. The PythonCAD project aims to produce a scriptable, open-source, easy to use CAD package (Cross Platforms)
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    Downloads: 13 This Week
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  • 9
    BlenderCAD
    Our primary goal is to create a great, full featured, 3D CAD environment for Blender for use by engineers, designers, drafters, architects, etc. based on the OpenCascade toolkit.
    Downloads: 9 This Week
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  • 10
    Make sure to download from the link below and not the big giant button. I'm not sure how to fix that, so if you know!
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    Downloads: 8 This Week
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  • 11
    MaxFEM

    MaxFEM

    Software for electromagnetic simulation

    MaxFem is an open software package for electromagnetic simulation by using finite element methods. The package can solve problems in electrostatics, direct current, magnetostatics and eddy-currents. Since version 0.4.0, MaxFEM requires Python 3. We have moved the installers to the MaxFEM website (see below). In order to improve MaxFEM, we will require you to fill out a simple form before downloading them.
    Downloads: 3 This Week
    Last Update:
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  • 12
    GGGears
    This application is intended to be a tool for easy, almost automatic, creation and calculation of gear transmission finite element models. It consists of a geometry and mesh generator based on GMSH and a finite element model based on GETFEM++.
    Downloads: 2 This Week
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  • 13
    ThanCad is a 2dimensional cad, with limited 3d support and raster inclusion capability and emphasis in engineering. It is being written in Python and since it uses the Tkinter library, it is platform independent.
    Downloads: 2 This Week
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  • 14

    wirecutter plugin for inkscape

    This plugin exports G-Code for a wirecutter

    The "wirecutter" plugin for inkscape is a plugin to generate g-Code for a 2D wirecutter with a turning table. You can either draw one open path which is the path which the machine will cut or you can draw some closed paths. These closed paths (e.g. Letters) must be connected because the cutter cannot leave the raw material like a milling machine. The Plugin helps you to create these connectors. If you have a wirecutter with a turning table you can create multiple "cuts" for different positions of the turning table. This software is not really tested and is still in development.
    Downloads: 3 This Week
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  • 15

    Linux TinyCad

    Linux tiny CAD for educational purposes

    Linux TinyCad, or LiniCad, is a tiny CAD used for educational purposes. It is written in Python/Tk and its goals are to be as programmatically easy and small as possible.
    Downloads: 2 This Week
    Last Update:
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  • 16

    dxf2gbr

    free simple dxf to gerber file converter

    freeware converter autocad (.dxf) file to gerber (.gbr). Currently dxf 2010 is partly supported. Feel free to contribute patches/extensions.
    Downloads: 2 This Week
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  • 17
    Buildes

    Buildes

    A designer’s program for describing parts of the building

    Buildes is an integrated development environment that assists the user in creating building information. It reads a text (session) file from which it compiles the information. It then allows the user to browse, analyze and export the resulting building knowledge. The compilation system is written in pure Python. The building components created are rendered in PythonOCC. The GUI is written using PyQt.
    Downloads: 1 This Week
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  • 18
    CAD Scripts project is designed to automate the work of CAD Softwares. Here you will find scripts/softwares which help to do tasks easily. E.g- Specify coordinates of figures in input file and get output dxf file without actually drawing anything.
    Downloads: 1 This Week
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  • 19
    Dedalo

    Dedalo

    dedalo is a 2d cad drawing software written in python3.

    dedalo is a 2d cad drawing software written in python3. It is licensed under the GPLv3. Dedalo features: layers, snaps (endpoint, intersection, midpoint), line, polyline, rectangle, delete, polygon, rectangle, arc, circle, points, text, spline, freehand drawing. Move, scale, rotate, offset, cut, extend, hatch, dimension, copy. English, italian languages SVG read-write. Not all features all fully supported. For more information a user manual is provided(pdf format, italian).
    Downloads: 1 This Week
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  • 20
    LibrePLM

    LibrePLM

    LibrePLM integrates CAD editors in Odoo / LibrERP

    Save and manage Engineering informations from CAD system directly in Odoo or LibrERP. Integrated in CAD system, allows complete Product Lifecycle control. Reduce time to market, improve your business and avoid trivial errors. Server New Release : 2025 Q3 - Release on Odoo version 19.0. Client New Release : 2026 Q1 - Added Draftsight integration. Supported: Windows 11. Added new tool GetNodeID to help you asking activation code. Have more info : https://sourceforge.net/p/libreplm/wiki/Home Odoo is a product of Odoo SA world class leader in Open Source ERP system. Visit: http://www.odoo.com LibreERP and LibrePLM are products of Codebeex srl. Visit: http://www.codebeex.com Download Free Trial Client. Need support, customizations, more? Ask to: info@codebeex.com
    Downloads: 1 This Week
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  • 21
    OpenMultiphysics

    OpenMultiphysics

    Application Integration for HPC Multiphysics

    The OpenMultiphysics project is the home for community-driven development of application integration technologies designed to aid in the design and implementation of multiphysics simulation capabilities. Design and development in this project is driven by the Consortium for Open Multiphysics. Feel free to visit us at our GitHub site as well: https://github.com/IllinoisRocstar/IMPACT
    Downloads: 1 This Week
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  • 22
    Pyslvs

    Pyslvs

    Open Source Planar Linkage Mechanism Simulation and Synthesis Software

    Downloads: 1 This Week
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  • 23
    SAMoCAD

    SAMoCAD

    Simple CAD program

    SAMoCAD - its program to create simple drawings, partially supports DXF. Main features: - create simple objects (line, arc, circle) - create complex objects (text, dimensions) - edit drawn objects - save drawing to SVG format - output drawing in PostScript format - export/import content DXF files (primitives LINE, CIRCLE, ARC, TEXT, DIMENSION) Program written in Python 2 and use the library Tkinter. Program requires no installation, but you need install Python 2.7 or later on your PC. Run file SAMoCAD.pyw to run the program. Its very old version of program!!! For more information see
    Downloads: 1 This Week
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  • 24
    pyGear

    pyGear

    Precise gear geometry generator for spur and helical gears

    A python gear generator that serves as CAE/CAD-preprocessor for involute gears based on pythonOCC. It allows for the computation of dynamic properties and the creation of exact geometries from a minimal input set. PyGear can simulate the tool geometry and kinematics of standard gear hobbing tools to generate precise flank, tooth root and tip geometries.
    Downloads: 1 This Week
    Last Update:
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  • 25
    FAST Simulations

    FAST Simulations

    An Open source Analysis and SImulation Toolbox for Fuel Cells

    FAST is an Analysis and Simulation Toolbox (FAST) for Fuel Cells (FC) FAST-FC is the doctorate work of David B. Harvey and was developed with support from the U.S. DOE, Ballard, and Queen's University. Derivative works of FAST-FC include FC-APOLLO which is a forked branch of this project intended to capture the code state at the exit of the funded DOE project. FAST-FC is the open and active community branch. FAST-FC is developed and maintained by the original creator and developer, David B. Harvey. Features of FAST-fc include transport of gases and liquids, multi-step reaction kinetics, transient and steady state operation for performance and durability, and scalable dimensionality from 1D - 3D domains. Future development work is on-going in FAST-fc and our strategic development schedule includes membrane degradation, improved liquid water transport models through the application of pore networks, and extension to stack-level simulation.
    Downloads: 0 This Week
    Last Update:
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