I have the following:

I want the center rectangle to be concentric with the outer rectangle (the separation of each edge should be equal). What’s the best way to do this?

  • @KalciferOP
    1•1 year ago

    Assuming you already have rectangle contraints – horizontal, vertical, width, height, etc. – then I’d probably constrain the centers to be coincident.

    Yeah, you can see all those constraints in the picture.

    Constrain one with height and width equal to parameters, and constrain the other based on 80% of the dimensions.

    Ah, okay - this is more or less the way that I usually do it. If its a box, the concentric separation, or “wall thickness” would be the same, so I would set a vertical and horizontal distance constraint between the outer and inner rectangles. This just felt sort of hacky to me, so I was wondering if there was a dedicated constraint so that I could, for example, select the outer rectangle, and the inner rectangle, then click a “Constrain concentric” option. Then I would only need one constraint for the wall thickness.

    • @[email protected]
      1•1 year ago

      I’m by no means a FreeCAD expert, so it’s possible there are better options.

      If you’re using parameters – specifically the same parameters for both rectangles – then it should be as simple as making a coincident contraint on the center points.