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0 pointscruffle_duffle1mo ago0 comments

3d printing is something I think about. LLMs do their best work against text and 3d printers consume gcode. I’ve had sonnet spit out perfectly good single layer test prints. Obviously it won’t have the context window to hold much more gcode BUT…

If there was a text based file format for models, it could generate those and you could hand that to the slicer. Like I’ve never looked, but are stl files text or binary? Or those 3mf files?

If Gemini can generate a good looking pelican on a bicycle SVG, it can probably help design some fairly useful functional parts given a good design language it was trained on.

And honestly if the slicer itself could be driven via CLI, you could in theory do the entire workflow right to the printer.

It makes me wonder if we are going to really see a push to text-based file formats. Markdown is the lingua franca of output for LLMs. Same with json, csv, etc. Things that are easy to “git diff” are also easy for LLMs…

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SOLAR_FIELDS1mo ago

There is a text based file format for models. It's called OpenSCAD. It's also much more information compacted than a mesh model file like STL - e.g. in OpenSCAD you describe the curve, in the mesh file like STL you explicitly state all elements of it.

It's just gimped to the point that you can basically only use it for hobbyist projects, anything reasonably professional looking is using STEP compatible files and that is much more complex to try to emulate and get right. STEP is a bit different - it's more like a mesh in that it contains the final geometry, but in BRep which is pretty close to the machining grade, while OpenSCAD is more like what you're asking about - a textual recipe to generate curves that you pass into an engine that turns it into the actual geometry. It's just that OpenSCAD is so wholly insufficient to express what professional designs need it never gets used in the professional world.

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