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.

  • Kalcifer@sh.itjust.works
    2·
    2 days 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
      1·
      2 days 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
        1·
        1 day 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?

        • Croquette@sh.itjust.works
          1·
          22 hours ago

          I just reformatted my PC so I don’t have FreeCAD installed.

          But the UI for finding out which line or line end is selected and apply the correct constraints is hard.

          The thing I’ve struggled the most is the coincident constraint which should be applied but isn’t. Finding the right line end points is not intuitive and the UI doesn’t show the selections well.

      • Kalcifer@sh.itjust.works
        1·
        1 day ago

        […] navigating which part of a line (and which line) is selected […] is a wild goose chase.

        Do you mean if they’re colinear?

      • Kalcifer@sh.itjust.works
        1·
        1 day 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.
        • Croquette@sh.itjust.works
          1·
          22 hours ago

          I will reinstall FreeCAD (just formatted my PC) and try to reproduce the issue.

          For me, it would show on the cursor that the coincident constraint was supposed to be applied, but it wouldn’t do that.