Symmetrical Rounded Edges Issue

How To
1

Thanks so much to the help of the community I now know how to make amazing rounded edges, however I am running into an issue. It seems that using the square/circle method has a flaw in that I can’t create a perfect half circle at the top of my rectangle, unless I am missing something.

The circle has to be so much larger than the square for the subtract boolean to work properly, thus not letting me get a “perfect” rounded top to my rectangle.

I have attached an image showing what I am trying to achieve. Huge thanks in advance :: )

Screen Shot 2016-08-30 at 11.59.11 PM.png2560×1600 245 KB

2

Got it to work here

test.c2d (56.5 KB)

3

that rounded edge doesn’t stretch all the way to the mid point of the rectangle though, so if I cut with that it would leave a flat portion along the top of the rectangle.

I am trying to round the entire top and bottom of the rectangle.

4

In that case its simpler:

rectangle same width as circle diameter

rectangle lower than circle by its radius

both aligned

select both and union

5

lower than circle by its radius? not sure what you mean by that, but the rest makes sense.

6

The rectangle must be lower on the page than the circle by the radius of the circle (half its diameter)

7

Here

cc-rounded.gif700×421 69.7 KB

cc-rounded.c2d (55.7 KB)