personally exited to check it out for real constructive-solid modeling, as opposed to emulating that workflow over OpenCascade's (fickle but otherwise lovely) BREP modeling (ie. edges & faces) via build123d (which has been great but is increasingly vibe-coded :/)
I've been "vibe coding" with OpenSCAD with good results! OpenSCAD will automatically detect changes in the current open file and reload it, so I can use VS Code (with the OpenSCAD extension) to vibe code with Claude, and watch the changes appear on the OpenSCAD screen
Also check out modelrift.com which is based on openscad foundation. See the dynamic customizer which allows to edit any model parameter, re-render and get .stl: https://modelrift.com/models/customizable-liquid-funnel - it works _completely_ in your browser by using WASM
(I seem to be cast in the role of FreeCAD advocate on HN these days, but here goes!)
For years I agreed with you - I tried FreeCAD multiple times, different versions, always sucked.
Then I watched this video [0] and discovered that v1.1 is different - and that it's good enough for solid reliable hobby usage. It's still a touch frustrating in a few areas (text, for example) but I've now switched over to it completely.
I agree. freeCAD has become a tool that I just use without thinking about it. Earlier versions always made me question my choice and try out other software.
To echo others' comments: FreeCAD has improved significantly since v1.0, so I'm hoping this attracts quality & stability-minded develeopers, and a frequent release cadence.
> Its not often you see 'fillets and chamfers' are tip-line features in the readme for CAD packages.
Well the readme states the following:
Solvespace on the other hand gets the workflow part right, but falls short by not importing STEP and the geometry kernel not supporting chamfers and fillets.
Some other open source 3D CAD tools:
Code-based
- CadQuery - https://github.com/CadQuery/cadquery/
- build123d - https://github.com/gumyr/build123d
- OpenSCAD - https://openscad.cloud/openscad/
GUI (browser-based)
- Cadmium (abandoned, cool idea) - https://mattferraro.dev/posts/cadmium
libfive - https://libfive.com
guile scheme, bindings in Rust and Python
personally exited to check it out for real constructive-solid modeling, as opposed to emulating that workflow over OpenCascade's (fickle but otherwise lovely) BREP modeling (ie. edges & faces) via build123d (which has been great but is increasingly vibe-coded :/)
discussed previously: https://news.ycombinator.com/item?id=12319406
a real constructive solid library (as opposed to emulation via modeling), with
FreeCAD: https://freecad.org
KiCad - https://www.kicad.org/
Cadova - https://github.com/tomasf/Cadova
SolveSpace - https://github.com/solvespace/solvespace
JSCAD (formerly OpenJSCAD) https://openjscad.xyz/
Awesome because you can build a model, expose the parameters, and allow web users to generate a model to fit their parameters.
Brl-cad https://brlcad.org/
I've been "vibe coding" with OpenSCAD with good results! OpenSCAD will automatically detect changes in the current open file and reload it, so I can use VS Code (with the OpenSCAD extension) to vibe code with Claude, and watch the changes appear on the OpenSCAD screen
vcad was started in 2026 and has great ambitions: https://docs.vcad.io
Without context, it sounds like an FPS adaptation of a Dune game.
Also check out modelrift.com which is based on openscad foundation. See the dynamic customizer which allows to edit any model parameter, re-render and get .stl: https://modelrift.com/models/customizable-liquid-funnel - it works _completely_ in your browser by using WASM
FreeCAD is the worst. Thanks for building this!
(I seem to be cast in the role of FreeCAD advocate on HN these days, but here goes!)
For years I agreed with you - I tried FreeCAD multiple times, different versions, always sucked.
Then I watched this video [0] and discovered that v1.1 is different - and that it's good enough for solid reliable hobby usage. It's still a touch frustrating in a few areas (text, for example) but I've now switched over to it completely.
[0] https://youtu.be/VEfNRST_3x8
I agree. freeCAD has become a tool that I just use without thinking about it. Earlier versions always made me question my choice and try out other software.
FreeCAD would benefit from effective
(1) agile Product Management,
(2) Product Design & continuous user-research,
(3) Improvements to test-driven development (TDD),
(4) transparent & open outcome-based roadmap,
(5) a vision to make the application easy to use for newbies in a maker-space, and (this is specific to my use-case),
(6) Improvements to the CAM module to make it easy to use this for CNC routers, and designing objects with sloped/curved surfaces.
- FreeCAD site: https://www.freecad.org/
- FreeCAD code: https://github.com/FreeCAD/FreeCAD
- FreeCAD forum: https://forum.freecad.org/
To echo others' comments: FreeCAD has improved significantly since v1.0, so I'm hoping this attracts quality & stability-minded develeopers, and a frequent release cadence.
Recent freecad is pretty decent. My main complaint these days is the performance of the geometry engine.
Its not often you see 'fillets and chamfers' are tip-line features in the readme for CAD packages. But good on you for building something.
Well, implementing fillets and chamfers is no easy task, so it's well deserved to be there.
Source: been there, done that.
> Its not often you see 'fillets and chamfers' are tip-line features in the readme for CAD packages.
Well the readme states the following:
Solvespace on the other hand gets the workflow part right, but falls short by not importing STEP and the geometry kernel not supporting chamfers and fillets.
So I assume that's where that comes from.