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OpenCAD Studio a FOSS alternative of AutoCAD and other 2D drafting and 3D CAD modeling programs (thelemmy.club)
submitted 20 hours ago by to c/linux@lemmy.world
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[–] 6 points 14 hours ago (7 children)

Your question has already been answered, but I'm chiming in anyway, just to express my disappointment that this is not a viable alternative. Freecad is such a struggle for me to use; I used DesignSpark for 3d modeling and conceptualizing large builds, and I lost it when I migrated to Linux (wasn't much of a loss, they were only making the free version worse). Freecad's workflow is so foreign to me, and Blender doesn't seem great for 3d modeling practical parts.

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  • [–] 9 points 7 hours ago (3 children)

    If you would've asked me 4 months ago I'd say the same. I come from industry standard software, so FreeCAD was barely usable if you have gotten used to some of the higher grade usability featuers. Skip a few months forward and FreeCAD development has ramped up as if it's the cure to cancer. The features (especially usability ones) implemented in the last half a year brings it somewhat on par with what a trained engineer would expect.
    For example last week they implemented automatically including reference geometry inside sketches, before you had to use a separate step to include them through a projection or intersection with the sketch plane. That is huge. I think in a few years FreeCAD will essentially be a feature complete industry standard CAD program.

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  • [–] 3 points 4 hours ago (2 children)

    I have been trying to get rid of Fusion 360 for a while. Any recommendations for someone who can use that to transition ro freecad?

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  • [–] 2 points 3 hours ago

    I moved from Creo to FreeCAD. For a free software, FreeCAD is insanely good. But it's clear that it is an enthusiast project with focus on functionality rather than UX and UI, allthough they are starting to improve on that too. It's also clear that all industry grade software providers must headscout some of the smartest and most talented mathematicians and software engineers, which open source can simply not afford.

    I took for granted how performant and flexible Creo is with things like chamfers and patterns. FreeCAD struggles in that regard hard, to the point where those steps have to be the last things in your workflow, otherwise the entire model lags out or even crashes.

    Also, compared to FreeCAD, the actual constriction feature management seems like magic in Creo, it keeps way better track of the naming and numbering of references and minor changes to earlier elements transfer seamlessly to all newer ones. Meanwhile in FreeCAD adding even a single borehole into a surface retroactively (which shouldn't influence anything else) completely breaks the model and all surfaces need to be reassigned by hand to all upstream elements.

    Threads are another issue. I know cosmetic threads are super easy to do in Fusion, and are especially important for 3D printing. The most effective way to get cosmetic threads in FreeCAD is to use a plugin that gives you parametric rods, nuts and cutting tools and you just use a boolean operation to basically cut a thread into geometry. It works perfectly, but is simply really weird and unusual.

    In general FreeCAD can do anything an industry standard CAD Programm can do, it will only take you 10 times longer and is 5 times more complicated. Sometimes the same operation will work on one edge, but not it's exact copy. Sometimes a feature works on the selection, sometimes you get a seperate selection window for the feature. It's clear that a lot of implementation happens without proper communication inside the FreeCAD team and therefore lacks in consistency.

    But it seems that this year is going to be the year of FreeCAD as they significantly ramped up development and there are almost monthly improvements. They also make effort to unify features and improve consistency across board.

    Your mentality needs to be that FreeCAD models are clunky and fragile and you essentially have to already know exactly what you want to design before even starting. It's not a great tool for creative technical experimentation, for now at least.

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