solvespace
FreeCAD
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solvespace | FreeCAD | |
---|---|---|
69 | 234 | |
3,005 | 17,463 | |
1.2% | 3.1% | |
7.0 | 10.0 | |
4 days ago | 1 day ago | |
C++ | C++ | |
GNU General Public License v3.0 only | GNU General Public License v3.0 or later |
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.
solvespace
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Ask HN: What rabbit hole(s) did you dive into recently?
Can second this!
However, I would recommend https://solvespace.com! It hits a sweet spot between features vs complexity/learning effort.
- 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:
https://github.com/solvespace/solvespace/commits/master/
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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:
https://github.com/solvespace/solvespace/pull/1425
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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
[1] https://bikechecker.com/
[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?
FreeCAD
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Sketch gets mirrored on edit
bug reports should be made on the github issue tracker here: https://github.com/FreeCAD/FreeCAD/issues
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Looking for open source 3D modelling/CAD software compatible with an older version of Mac OS
Try this https://www.freecad.org/
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FreeCAD and undefined behavior in C++ code: meditation for developers
FreeCAD is a general-purpose parametric 3D computer-aided design (CAD) modeler. This open-source software application is based on C, C++, and Python. PVS-Studio doesn't support Python at the moment, so I will only check the C and C++ parts. Here is the link to the project code.
- FreeCAD: Own 3D Parametric Modeler
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Looking for a poor man's AutoCad
LibreCAD, OpenSCAD (more script based and more for solids), FreeCAD.
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Which CAD software should I use?
would freecad be an option?
- Not Sure What to Do
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if any of you guys uses a 3d printer to make concrete molds, please give me the pdfs for them.
Hi! 3d printers read .stl files, generally. You can design your own files for free with FreeCAD in a relatively simple format before sending them to your slicer and printer. Out of personal experience, design a silicone component into your mold, as the hard plastic is unforgiving when de-molding. Good luck!
- is there anyway to specif that autosaves are stored in one central path?
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Rocket Nosecone Modelling
Second Way: I don't use this second method as the first one already works for me. However, you can download FreeCAD, which is an OpenSourced Free to use software for many hobbyists. I personally think it's slightly trickier to get used to but it works! You can watch this video to model a nose cone in FreeCAD.
What are some alternatives?
cadquery - A python parametric CAD scripting framework based on OCCT
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.
Autodesk-Fusion-360-for-Linux - This is a project, where I give you a way to use Autodesk Fusion 360 on Linux!
FreeCAD_assembly3 - Experimental attempt for the next generation assembly workbench for FreeCAD
blender-cad-tools - a collection of Blender addons to make CAD design with Blender even more enjoyable
Visual Studio Code - Visual Studio Code
libredwg - Official mirror of libredwg. With CI hooks and nightly releases. PR's ok
qcad - QCAD - The Open Source 2D CAD. QCAD is a cross-platform CAD solution for Windows, macOS and Linux. It supports the DXF format and optionally the DWG format (through a proprietary plugin).
DesignSpark-Mechanical-for-Linux
OpenBuilds-Fusion360-Postprocessor - Post Processor for Fusion 360 for use with OpenBuilds Machines running Grbl 1.1