SolidPython
solvespace
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SolidPython | solvespace | |
---|---|---|
13 | 68 | |
1,048 | 2,999 | |
0.1% | 1.0% | |
1.9 | 7.0 | |
about 1 year ago | 8 days ago | |
Python | C++ | |
- | GNU General Public License v3.0 only |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
SolidPython
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Better OpenSCAD?
https://github.com/SolidCode/SolidPython --- apparently there's a fork as a v2 which is to be preferred
- Is there a way to assign properties to solid objects?
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Created a makefile build system using python for easier generation of multiple scad objects
Then use SolidPython to generate the scad files. ;)
- SolveSpace – parametric 2d/3D CAD
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GhostSCAD: Marrying OpenSCAD and Golang
I wonder how many OpenSCAD wrappers now exist? I know of scad-clj [0], openpyscad [1], and solidpython [2].
I particularly like scad-clj, because of `lein auto generate`. It watches source files, and regenerates the OpenSCAD files automatically, which OpenSCAD then also picks up. Although I'm not well versed in Clojure, and find debugging Clojure tricky, the workflow is just so good.
[0] https://github.com/farrellm/scad-clj
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I wrote a quick tutorial on how to use OpenSCAD to model containers for board game tokens. Link to the tutorial is in the comments.
Check out SolidPython, a front-end to OpenSCAD in Python that generates OpenSCAD code. It's actively developed (latest commit was 16 days ago) and has some excellent features, including first-class negative spaces - once you declare something to be a hole, the library makes sure that, no matter what, you will get a hole in the final model.
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Writing a computer program from scratch that parametrically generates an entire jet engine assembly
The mesh is already generated. I'm using a library (https://github.com/SolidCode/SolidPython) that generates OpenSCAD code which can be exported to pretty much any 3D format you want.
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Cylinder on coordinates from a txt or excel file
If you share an Excel (or, better yet, CSV) file, I can put up some Python code that outputs the OpenSCAD you want. I wrote SolidPython for exactly situations like this-- when you want to interface with other kinds of programs than just modeling.
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OpenSCAD - There should be a "negative" switch
In addition to first-class negative space (a hole like OP asked for), the SolidPython OpenSCAD binding also includes +, -, and * operators for union, difference, and intersection. (Disclosure; I’m the author)
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OpenScad is great, but slow to render.
Also, if it’s screw threads you’re after, there may just be some faster (== non-minkowski) ways to do that. OpenSCAD calculates polyhedrons much faster than big unions of parts. Buut, OpenSCAD also kinda sucks for doing vector math. I wrote SolidPython to get around some of the constrictions of OpenSCAD, and the screw_thread utility method should render decently detailed threads (120 segments per revolution, say) in a few seconds.
solvespace
- My favorite code comment/rant
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Why large companies and fast-moving startups are banning merge commits
We use rebase on solvespace, along with sensible squashing so most commits along master are pretty self contained. You can see the clean history here:
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A one line code change inside iOS made me waste 5 minutes
I changed a behavior to the "more standard" one because it felt obviously right. This was a 3 line change. But the was enough backlash right there in the pull request. So I spent a couple hours remembering how to add a configuration option to keep the old way for those guys:
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RattleCAD
> If you like Linkage, you might also like Solvespace.
No, I mean Brent Curry's Linkage[1] bicycle design software, not David Rector's Linkage Mechanism Designer and Simulator[2].
You should read Wikipedia article.[0]
N.B. About SolveSpace, as I'm its experienced user[youtube,patreon], I may say next: yes, it could be used for bike mockup, as any other CAD, but it still has a lot of limitations and even does not export correct STEP files yet[3], and in FreeCAD such STEP could fixed only partially.[video]
So, for serious 3D CAD work I highly recommend use FreeCAD (and LibreCAD for 2D CAD work) instead of SolveSpace, and use SolveSpace only as a helper tool like a calc or as a notepad for noting ideas.
About Linkage Mechanism Designer and Simulator, it is only useful for planar (2D) kinematics analyze, and if You are looking an alternative for it take a look on Pyslvs[4], that is in part based on SolveSpace's solver.
[0] https://en.wikipedia.org/wiki/rattleCAD#History
[2] https://blog.rectorsquid.com/linkage-mechanism-designer-and-...
[3] https://github.com/solvespace/solvespace/issues/206
[4] https://github.com/KmolYuan/Pyslvs-UI
[video] https://www.youtube.com/watch?v=F3LJMeqUDrU
[youtube] https://www.youtube.com/@appsoft
[patreon] https://patreon.com/app4soft
- SolveSpace has been ported to Qt
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Ask HN: What are some of the most elegant codebases in your favorite language?
C++ this file covers all the math for working with NURBS curves and surfaces:
https://github.com/solvespace/solvespace/blob/master/src/srf...
There is a lot more in other files - triangulation, booleans, creation - but the core math functions are there in very readable form.
- My favorite rant in a code comment (on OpenGL compatibility)
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The Great CPU Stagnation
>> Maybe somebody has statistical survey of how much of the existing deployed CPU core count is typically used?
My guess is very few cores are used on average. I did some testing with Solvespace to see which build options contributed most to performance:
https://github.com/solvespace/solvespace/issues/972
Obviously using OpenMP for multi-core was the big win. But what's not shown is that in typical usage (not the test I ran) if you're dragging some geometry around it will use all cores (in my case 4 cores / 8 threads) at about 50 percent utilization. That percentage probably drops as more cores are thrown at it due to Amdahl's Law. In other words, throwing double the cores at it will give a good boost to a lot of code that is already taking less than half the time (wall clock time, not CPU time).
We added OpenMP to a number of functions for significant performance gains. And in fact, any remining single-thread operation that gets the parallel treatment is likely to have a significant impact on overall performance since that is where most of the time is spent now. At this point we're more focused on features and bugs.
Algorithmic improvements are possible and I'd like to do those in the future, but they are much harder to do than sprinkling some #pragmas around critical loops. That will improve the scalability though, where multithreading really did not.
- Free, mac compatible, relatively easy CAD/CAM software?
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Weird architectures weren’t supported to begin with
Yeah why should we even care about s390 for some things?
https://github.com/solvespace/solvespace/issues/1264
I don't think big commercial customers are designing airplanes with it.
What are some alternatives?
openpyscad - Python library to generate OpenSCAD source code. This library provides intuitive interface when you handle 3D data.
cadquery - A python parametric CAD scripting framework based on OCCT
openscad - OpenSCAD - The Programmers Solid 3D CAD Modeller
Autodesk-Fusion-360-for-Linux - This is a project, where I give you a way to use Autodesk Fusion 360 on Linux!
OpenJSCAD.org - JSCAD is an open source set of modular, browser and command line tools for creating parametric 2D and 3D designs with JavaScript code. It provides a quick, precise and reproducible method for generating 3D models, and is especially useful for 3D printing applications.
blender-cad-tools - a collection of Blender addons to make CAD design with Blender even more enjoyable
Round-Anything - A set of OpenSCAD utilities for adding radii and fillets, that embodies a robust approach to developing OpenSCAD parts.
FreeCAD_assembly3 - Experimental attempt for the next generation assembly workbench for FreeCAD
ViewSCAD - A Jupyter renderer for the OpenSCAD and SolidPython Constructive Solid Geometry languages
LibreCAD - LibreCAD is a cross-platform 2D CAD program written in C++17. It can read DXF/DWG files and can write DXF/PDF/SVG files. It supports point/line/circle/ellipse/parabola/spline primitives. The user interface is highly customizable, and has dozens of translations.
BOSL - The Belfry OpenScad Library - A library of tools, shapes, and helpers to make OpenScad easier to use.
DesignSpark-Mechanical-for-Linux