For me, it’s CAD software. FreeCAD is trash (sorry, lovers). Fusion360 is honestly the best out there for free. The “almost there” app is Shapr3D, but fuck $40/m.

And yes I’ve tried all the others not listed here.

    • kibblebits@quokk.auOP
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      1 month ago

      I wish the UI/UX wasn’t made by people who still live in 1995, as a major start.

    • Croquette@sh.itjust.works
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      1 month ago

      Not OP, but FreeCAD auto-constraints in sketches are all over the place, and figuring out which constraint is a problem and selecting the right element in the UI is terrible.

      • Kalcifer@sh.itjust.works
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        1 month ago

        Maybe I’m misunderstanding you, but FreeCAD tells you when a constraint is redundant, and clicking on it highlights the respective constraint in the sketch:

        [1]

        References
        1. Type: Screenshot. Publisher (Application): FreeCAD. Published (Version): “1.1.1”. Accessed: 2026-06-11T23:44Z.
        • Croquette@sh.itjust.works
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          1 month ago

          The redundant constraint detection works pretty well and FreeCAD usually remove them.

          The main issue for me is that certain auto-constraints will not work as they advertise on your cursor.

          The biggest culprit for me is the coincident constraint.

          Let’s say that you have two lines in a 90 degree corner. If you add a line in the middle of any of the two lines, the cursor shows you that it will add a coincident constraint. But when you create your line, the coincident constraint isn’t applied.

          And the other thing for me is that navigating which part of a line (and which line) is selected is not intuitive and correcting or adding constraints to fully constraint the drawing is a wild goose chase.

          • Kalcifer@sh.itjust.works
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            1 month ago

            […] correcting or adding constraints to fully constraint the drawing is a wild goose chase.

            I’m not sure I understand what you mean by this. Could you elaborate?

          • Kalcifer@sh.itjust.works
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            1 month ago

            […] Let’s say that you have two lines in a 90 degree corner. If you add a line in the middle of any of the two lines, the cursor shows you that it will add a coincident constraint. But when you create your line, the coincident constraint isn’t applied. […]

            What you’re describing sounds more like a bug to me. At any rate, I wasn’t able to confirm the behavior you described (maybe I’m misunderstanding you?):

            [1]

            I was able to get both a symmetric constraint (green arrow), and a coincident constraint (red arrow) on the two 90 degree lines.

            References
            1. Type: Screenshot. Publisher (Application): FreeCAD. Published (Version): “1.1.1”. Accessed: 2026-06-12T22:47Z.