build123d
fornjot
build123d | fornjot | |
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9 | 35 | |
334 | 1,887 | |
- | - | |
9.7 | 10.0 | |
10 days ago | 6 days ago | |
Python | Rust | |
Apache License 2.0 | Zero-Clause BSD (0BSD) |
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build123d
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Text to CAD?
I haven't tried Zoo (really, unique naming isn't THAT hard...), and afict I can't see the code so I prob never will, but I got perfect results with build123d recently. Admittedly it's python to cad, not AI text to cad, but it was a joy to use after getting over the initial learning curve. The users and devs hang out on the slack chan and are very helpful.
https://github.com/gumyr/build123d
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Gimp 2.99.18 Released: The Last Development Preview Before 3.0
Yes, absolutely.
It was where GIMP still is now, for artists.
It's definitely been idiosyncratic (if not solipsistic). And it still [0] has a core flaw that is being mitigated.
OpenSCAD is actually very limited in ways that don't become obvious until you get into a bRep CAD system at least. But it's how I also got into CAD.
If you like it, you might find Build123D [1] interesting: this is a Python (and very pythonic) environment built around the same kernel as FreeCAD.
I wanted to know there was at least something I'd be able to use for my own ideas, and the fact that OpenSCAD exists is definitely a blessing.
But I got from OpenSCAD to FreeCAD and I am very glad of it; it's an amazingly capable bit of software once you get past the pain (in the same way Blender is, I gather).
GIMP is not an amazingly capable bit of software for designers. It's broken and hobbled.
[0] the topological naming problem: being corrected in the core distribution at the moment as they head to 1.0
[1] https://github.com/gumyr/build123d
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Text-to-CAD: Risks and Opportunities
https://github.com/gumyr/build123d :
> Build123d is a python-based, parametric, boundary representation (BREP) modeling framework for 2D and 3D CAD. It's built on the Open Cascade geometric kernel and allows for the creation of complex models using a simple and intuitive python syntax. Build123d can be used to create models for 3D printing, CNC machining, laser cutting, and other manufacturing processes. Models can be exported to a wide variety of popular CAD tools such as FreeCAD and SolidWorks.
> Build123d could be considered as an evolution of CadQuery where the somewhat restrictive Fluent API (method chaining) is replaced with stateful context managers* - e.g. with blocks - thus enabling the full python toolbox: for loops, references to objects, object sorting and filtering, etc.*
"Build123d: A Python CAD programming library" (2023) https://news.ycombinator.com/item?id=37576296
BREP: Boundary representation: https://en.wikipedia.org/wiki/Boundary_representation
Manim, Blender, PhysX, o3de, [FEM, CFD, [thermal, fluidic,] engineering]: https://github.com/ManimCommunity/manim/issues/3362
NURBS: Non-Uniform Rational B-Splines: https://en.wikipedia.org/wiki/Non-uniform_rational_B-spline
NURBS for COMPAS: https://github.com/gramaziokohler/compas_nurbs :
> This package is inspired by the NURBS-Python package, however uses a NumPy-based backend for better performance.
> Curve, and Surface are non-uniform non-rational B-Spline geometries (NUBS), RationalCurve, and RationalSurface are non-uniform rational B-Spline Geometries (NURBS). They all built upon the class BSpline. Coordinates have to be in 3D space (x, y, z)
test_curve.py, test_surface.py
https://github.com/compas-dev
compas_rhino, compas_blender
Blender docs > Modeling Surfaces; NURBs implementation, limits, challenges:
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Build123d: A Python CAD programming library
https://github.com/gumyr/build123d/blob/dev/examples/heat_ex...
- Louis Rossmann: Autodesk turns lifetime licenses into subscriptions [video]
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Walkway Terraib
github
- What are your thoughts on build123d?
- Build123d: Open-Source Python Toolbox for 2D and 3D CAD Modeling
fornjot
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Text-to-CAD: Risks and Opportunities
I agree 100%.
Truck[1] and Fornjot[2] are recent attempts in the Rust space, both are WIP.
But both seem to be going the traditional way. I.e. B-Rep that can be converted to (trimmed) NURBS.
I think if one wanted to incorporate the last 50 years of computer science, particularly computer graphics, one needed to broaden the feature set considerably.
You need support for precision subdivision surface modeling with variable radius creases (either via reverse subdivision where you make sure the limit surface pass through given constraints or using an interpolating subivision scheme that but has the same perks as e.g. Catmull-Clark).
Then you need to have SDF modeling ofc.
Possibly point based representations. If only as inputs.
And traditional B-Rep.
Finally, the kernel should be able to go back and forth lossless between these representations wherever possible.
And everything must be node-based, like e.g. Houdini. Completely non-destructive.
[1] https://github.com/ricosjp/truck
[2] https://github.com/hannobraun/fornjot
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Is there an open source CAD program made in rust?
Fornjot seems like this question was tailored for it: https://www.fornjot.app/
- Truck: CAD Kernel in Rust
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CAD Sketcher, free and open-source project bringing CAD like tools to Blender3d
I think some interesting developments are made in that sector in the form of https://github.com/hannobraun/Fornjot and https://github.com/ricosjp/truck. Let's see whether one of those will actually get anywhere near a usable level. Fornjot in particular is shaping up really well.
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Show HN: Dslcad a programming language and interpreter for building 3D models
E.g. Rhai[2] or Lua or whatever.
And I guess if their tech is solid enough, someone will do that eventually and open a PR or fork the project. They do not use an existing geomtry kernel but do everything from scratch which makes this a very interesting endeavour.
There also seems to be a goal overlap between Fornjot and DieselCAD
[1] https://github.com/hannobraun/Fornjot
[2] https://rhai.rs/
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Just saw this on Facebook. Brilliant solution. Anyone print one of these?
I have heard of yet another in-development CAD software like OpenSCAD or CADQuery, called Fornjot. Still, these are not ideal.
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Fornjot (code-first CAD in Rust) - Progress Report
I'm not opposed to someone else adopting that code and creating that crate though! (Fair warning though, Fornjot might not end up using that crate. We might still go with another approach eventually.)
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The Orb: a parametric trackball with BTU mounted ball and keyboard switches for buttons
also it's to early to be off much use to you, but have you heard of https://www.fornjot.app/ ? it's a very in development cad kernel that is also aiming for integration into multiple host languages.
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Fornjot (code-first CAD in Rust) - Weekly Release - 2022-W36
Yes! The website and repository README have a screenshot, and there are screenshots for each model in the models/ directory.
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Fornjot (code-first CAD in Rust) - Weekly Release - 2022-W32
I'm kind of interested in this issue because it's what I immediately wanted when I ran fj-app.
What are some alternatives?
awesome-cadquery - A curated list of CadQuery code and resources.
cadhub - We're out to raise awareness and put CodeCAD on the map. The success of CadHub can be measured by the amount it promotes the use of CodeCAD within the mechanical/manufacturing industry and the strength the CadHub community.
zcad - Simple CAD program
truck - Truck is a Rust CAD Kernel.
cqMore - More fundamental API on CadQuery.
openscad - OpenSCAD - The Programmers Solid 3D CAD Modeller
compas_nurbs - NURBS for COMPAS
high-assurance-rust - A free book about developing secure and robust systems software.
ocp-freecad-cam - CAM for CadQuery and Build123d by leveraging FreeCAD
cadquery - A python parametric CAD scripting framework based on OCCT
dyon - A rusty dynamically typed scripting language