pico-bot
sdf
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pico-bot
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Another 3D printed useless gadget, my little desktop mate. First attempt at painting, it looks better IRL ;). And first time trying magnets to keep the parts joined together. STLs and files in the comment.
STLs, Fusion360 and Python - https://github.com/MatthewPageUK/pico-bot
sdf
- Sdf – Generate 3D meshes based on SDFs
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FreeCAD User Book (2019)
I used to like OpenSCAD for its simple approach but then I discovered SDF-based modelling with Python made possible with this neat library: [1]. This is perfect if you are a programmer that doesn't know anything about CAD-Software.
1.: https://github.com/fogleman/sdf
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CAD Sketcher, free and open-source project bringing CAD like tools to Blender3d
>these the the central core that understands BREP and implements the geometric operations.
I've seen people quote a good modern CAD kernal as a 100 man year project. It's probably not going to happen, maybe there's some avenue for government funding?
Alternatively Signed-Distance-Functions are pretty nice. They're not BREP, but they're a lot easier to implement, and it might be possible to shove them into a BREP-shaped hole.
Here's a signed-distance-function based CAD kernal written in a few thousand lines of python+numpy, that seems to be about as fast as openscad. Maybe faster. https://github.com/fogleman/sdf
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Signed distance functions in 46 lines of Python
Excellent. You might be interested in a Python library that I wrote for generating 3D meshes (STL files) from SDFs : https://github.com/fogleman/sdf
It just uses marching cubes for triangulation but the SDFs are all numpy'd and the SDF is evaluated in batches on multiple threads so it's relatively fast.
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Plot of triangle mesh with py5
I used the SDF repo by Michael Fogleman. Check out his website, there's a ton of useful stuff on there. He contributes a lot to the open source community and has been mentioned in r/PlotterArt before.
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10 ways to get the best out of OpenSCAD
Try out fogleman/sdf[1]. It is like OpenSCAD in many ways but the distance field model gives you offsets and fillets more easily.
[1] https://github.com/fogleman/sdf
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Is it possible to 3d print signed distance functions?
https://github.com/fogleman/sdf this python project can create mesh from sdf
- Curated Code CAD
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Guerrilla guide to CNC machining, mold making, and resin casting (2015)
> https://github.com/fogleman/sdf
Holy crap, why have I not seen this before?!?!!? I was even planning to start coding something like this myself. This is awesome!
- I am planning on creating a programming language for my Informatics Bachelor Thesis. What are your ideas for such a project?
What are some alternatives?
nscale4x8 - Reboot of my first N Scale railroad and my first layout in 20+ years
meshlab - The open source mesh processing system
Fusion360Exporter - Export (and sync) all of your Fusion360 projects and documents in various formats
trimesh - Python library for loading and using triangular meshes.
sdfx - A simple CAD package using signed distance functions
meshio - :spider_web: input/output for many mesh formats
vedo - A python module for scientific analysis of 3D data based on VTK and Numpy
opencascade-emscripten-port - Open CASCADE - Emscripten / Webassembly port
libfive - Infrastructure for solid modeling
cadquery - A python parametric CAD scripting framework based on OCCT
q-pack - Open source version of the proton pack from the Ghostbusters movies
BOSL2 - The Belfry OpenScad Library, v2.0. An OpenSCAD library of shapes, masks, and manipulators to make working with OpenSCAD easier. BETA