jetter
Re:Benchmark: CadQuery vs. OpenSCAD for agentic CAD work
on Sunday September 13, 2026 @02:51AM (#49680785)
assemblies and tolerances are where AI generation quickly gets hard. but, for simpler things, it can be surprisingly good, especially for people who has no CAD knowledge. it certainly might feel a bit like brute-forcing through the LLM - but this also applies to vibe-coding..
Re:Benchmark: CadQuery vs. OpenSCAD for agentic CAD work
on Sunday September 13, 2026 @02:48AM (#49680772)
Sure! but, for 3d printing hobbyist who wants to create and print a cube, both are able to provide a printable cube.
Re:Benchmark: CadQuery vs. OpenSCAD for agentic CAD work
on Sunday September 13, 2026 @02:47AM (#49680759)
do you know the WASM bundle size of Python and CadQuery? OpenSCAD has a lot of cons in terms of concept and CAD approach, but there are things where it is good - it is embeddable and sandboxable and fast. It gets the job done in simple models and that is the reason why it is popular.
It reminds me a bit how everyone was bashing PHP because 'it is not a programming language' while wordpress ruled the world.
Re:Benchmark: CadQuery vs. OpenSCAD for agentic CAD work
on Sunday September 13, 2026 @02:41AM (#49680724)
"Downloading WASM: 40mb of Python and build123d" - this hurts :( This is exactly the good thing about OpenSCAD: its WASM build size is minuscule compared to Python build, and you can edit/customize a model right in the browser. https://modelrift.com/models/desktop-organizer-with-drawer
Re:Gemini 3.8 Flash
on Wednesday September 02, 2026 @03:32PM (#49541219)
CAD for 3D printing is finally becoming feasible with Flash 3.7 and 3.8. Exciting times. https://github.com/ModelRift/openscad-skill/
OpenSCAD Skill for 3D Modeling
Re:Launch HN: Adam (YC W25) – Open-Source AI CAD
on Wednesday June 17, 2026 @04:35PM (#48576482)
https://modelrift.com/blog/openscad-llm-benchmark/ LLMs are still weak at spatial reasoning, but it gets better. Check out modelrift.com for another alternative
Re:Launch HN: Adam (YC W25) – Open-Source AI CAD
on Wednesday June 17, 2026 @04:33PM (#48576462)
take a look at modelrift.com, it is built around annotating built models by basic pen and arrow tools, works fairly well ('smarter' model is significantly better)
check this out: https://modelrift.com/blog/openscad-llm-benchmark
LLMs are getting pretty good at OpenSCAD, especially if they work in agentic mode and can inspect intermediate results.
Re:Antigravity 2.0 Tops the OpenSCAD Architectural 3D LLM Benchmark
on Friday May 22, 2026 @08:14AM (#48234803)
these small functional prints are exactly where OpenSCAD and LLM generation shines
Re:Antigravity 2.0 Tops the OpenSCAD Architectural 3D LLM Benchmark
on Friday May 22, 2026 @07:20AM (#48234349)
I agree, my main concern regarding Google AI products is this endless pain around the UX of login / billing / upgrades / product sunsets... but their LLM models are good and Antigravity 2.0 is not that bad either (unless you lost all you Antigravity 1.0 setup and projects - like many people did)
Antigravity 2.0 Tops the OpenSCAD Architectural 3D LLM Benchmark
Re:CadQuery is an open-source Python library for building 3D CAD models
on Friday April 17, 2026 @03:46AM (#47803475)
If you like this, you should definitely check modelrift.com which allows to build awesome cad models thanks to OpenSCAD and smart AI assistant.
Community built examples: https://modelrift.com/models
Re:FreeCAD Version 1.1 Released
on Thursday March 26, 2026 @04:10PM (#47535093)
Did you try modelrift.com ? Its openscad + ai but way more convenient to preview results in realtime and iterate via annotated screenshots
Re:Dune3d: A parametric 3D CAD application
on Tuesday March 24, 2026 @01:49PM (#47506513)
try modelrift.com ?
Llms are bad at spatial understanding but you can steer them using annotated screenshots ("annotation mode" of modelrift) and get something working:
https://modelrift.com/models/cable-conceal-box-with-wall-mou...
Re:Dune3d: A parametric 3D CAD application
on Monday March 23, 2026 @05:00PM (#47495044)
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
Web based IDE for prompt-and-pray 3D modeling
Re:Print your own Mount Everest on a 3D printer (open source, web based)
on Tuesday February 17, 2026 @03:41PM (#47053024)
I have just added Mt Fuji to quick links.
Print your own Mount Everest on a 3D printer (open source, web based)
Re:Gemini 3 Deep Think
on Friday February 13, 2026 @08:08AM (#47002296)
proper sessions page is live:
https://modelrift.com/changelog/v0-3-2
let me know how it goes!
Re:Gemini 3 Deep Think
on Friday February 13, 2026 @06:15AM (#47001465)
building a benchmark is a great idea, thanks, maybe I will have a couple of days to spend on this soon
Re:Gemini 3 Deep Think
on Friday February 13, 2026 @06:12AM (#47001452)
right, I need to fix this one
Re:Gemini 3 Deep Think
on Friday February 13, 2026 @06:12AM (#47001451)
Thank you for this feedback, very valuable!
I am using Bambu as well - perfect to get things printed without much hassle. Not sure if direct push to printer is possible though, as their ecosystem looks pretty closed. It would be a perfect use case - if we could use ModelRift to design a model on a mobile phone and push to print..
Short guide to 3D file formats: STL, OBJ, 3MF, STEP and the rest
Re:Gemini 3 Deep Think
on Thursday February 12, 2026 @02:20PM (#46993674)
it is interesting that the video demo is generating .stl model.
I run a lot of tests of LLMs generating OpenSCAD code (as I have recently launched https://modelrift.com text-to-CAD AI editor) and Gemini 3 family LLMs are actually giving the best price-to-performance ratio now. But they are very, VERY far from being able to spit out a complex OpenSCAD model in one shot. So, I had to implement a full fledged "screenshot-vibe-coding" workflow where you draw arrows on 3d model snapshot to explain to LLM what is wrong with the geometry. Without human in the loop, all top tier LLMs hallucinate at debugging 3d geometry in agentic mode - and fail spectacularly.
We Chose OpenSCAD
ModelRift: An AI-assisted IDE for parametric 3D models (OpenSCAD) [video]
Re:Parametric CAD in Rust
on Wednesday January 28, 2026 @07:37AM (#46794526)
If you like OpenSCAD, you should check https://modelrift.com which is an OpenSCAD browser-based IDE which uses LLM to generate .scad and instantly shows the .stl 3d model result via 3d model viewer. Since AI models are still not good at openscad, the useful feature of modelrift is the "screenshot-powered" iteration where human annotates visual problems and sends it back to AI assistant to fix, all using hotkey shortcuts.