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mlmonkey 4 hours ago

In theory, one should be able to use OpenSCAD to come up with fancy surfaces to 3-D print, right?

I'm just dipping my toes in 3D printing, with a recent acquisition of a Bambu P2S

horacemorace 19 minutes ago | parent | next [-]

Yes. Claude is surprisingly capable in this area, maybe because the shapes are so simple. Using a slicer in vase mode should make it print quickly too.

givc 2 hours ago | parent | prev | next [-]

I used OpenSCAD to create a map of Manhattan. It shows the live location of subway trains. It was surprisingly easy, I struggled a lot with OnShape and Fusion360 trying to do this because there were too many polygons.

I found that starting with an SVG and extruding from there is perfect in OpenSCAD, but I’m sure I’m underutilizing it a lot.

I wrote a bit about it here if you’re curious https://hackaday.io/project/202488-manhattan-subway-map/deta...

dole 2 hours ago | parent | prev | next [-]

I was able to take the image of the star-shaped graph from OP, fed it to claude and used this for the prompt: "figure out a good formula or equation for this graph and use it to create the lampshade in openscad. use the graph as the bottom for a lampshade, and taper it all up to center point. leave a hole at the top big enough for a lightbulb fixture to pass through." It did a surprisingly good job of generating the OpenSCAD, STL, and preview renders in-browsers.

nomel 29 minutes ago | parent | prev | next [-]

For this case, I'm not exaggerating when I say you would probably have a much easier time generating the meshes yourself in python.

hessammehr 4 hours ago | parent | prev | next [-]

I haven't used OpenSCAD much beyond combining primitives. Truthfully these organic shapes are more of a use-case for 3D modelling software like Blender rather than CAD, but I'd be keen to hear if you end up giving OpenSCAD a go.

My Bambu A1 mini has been reliable despite the challenging geometry; pretty sure your P2S will work just as well if not better. Good luck!

Zarathruster 3 hours ago | parent | prev | next [-]

I was in your shoes about a year ago with an A1 mini, getting into OpenSCAD to make my own keycaps.

If you're getting into OpenSCAD I'd highly recommend getting Belfry ASAP.

https://github.com/BelfrySCAD/BOSL2/wiki

I wouldn't really consider using OpenSCAD without it

aforwardslash 2 hours ago | parent | prev [-]

> In theory, one should be able to use OpenSCAD to come up with fancy surfaces to 3-D print, right?

Yes, but it is painfully slow. Even perforated patterns are quite slow to generate.

MengerSponge 2 hours ago | parent [-]

Aside from Fusion360, is there a Free (or FOSS) cad package that uses breps and is scriptable?

Fusion360 is just stupid fast at perforations and sophisticated modeling constructions via its python API. I use it because it works well, but I'd be happier if I didn't have to maintain that Autodesk dependency...

dekhn 32 minutes ago | parent [-]

freeCAD is brep based and scriptable.